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Retained Commercial Strategy & BD Advisory

Your commercial strategy should be building the business, not reporting to it.

NHA works as a retained strategic partner for one client per sector, per geography. No commissions. No conflicts. No cost-cutting. Pure commercial growth.

Active Territories: 🇬🇧 United Kingdom· 🇺🇸 United States· 🇪🇺 European Union· 🇦🇺 Australia & New Zealand· 🇨🇦 Canada

Advisory-only. Single fee. Personal delivery.

Every NHA engagement is led by Paul Foster. No junior teams. No methodology frameworks handed off to associates. The commercial experience you engage is the commercial experience you receive.

Commercial Growth Strategy

Identifying where revenue growth is possible, what is blocking it, and what a commercially structured response looks like. Built from your numbers, your market, and your competitive position.

Business Development Architecture

Designing the BD engine, not just the immediate pipeline. Target identification, proposition development, approach strategy, and commercial model, built to work without NHA once embedded.

EBITDA Protection and Recovery

Finding margin that is being left on the table through cost mismanagement, supplier relationships, or commercial terms that no longer reflect your leverage. Quantified and recoverable.

Strategic Advice
Strategic Advice
Commercial Partnership
Commercial Partnership
Personal Delivery
Personal Delivery

London-headquartered. Globally connected.

Office 7, 35–37 Ludgate Hill, London EC4M 7JN
One client per sector per geography. Worldwide. UK · United States · European Union · Australia & New Zealand · Canada

How NHA is retained

NHA operates on a retainer plus performance bonus structure. The retainer funds the ongoing advisory relationship. The performance bonus is tied exclusively to verified, incremental commercial outcomes above a Pre-Engagement Benchmark Declaration established before any NHA advice is given.

This means our interests are fully aligned with yours from day one. NHA only earns its performance fee when you earn more than you were already planning to.

A 30-day Assessment Period applies to all engagements. If NHA withdraws within that period, the client pays nothing.

  • Single Fee PrincipleNo commissions, referral fees, or supplier payments of any kind
  • One client per sectorUK, US, Australia & New Zealand, Canada, EU
  • Personal deliveryPaul Foster leads every engagement
  • Pre-Engagement BenchmarkBaseline set in writing before advice begins
  • 30-day exit rightNo fee if NHA withdraws in assessment period
  • Advisory-onlyNHA does not implement, procure, or supply
  • Self-funding by designNHA routinely identifies recoverable value and financial entitlements that offset the retainer cost

Is NHA the right fit for your business?

NHA engages a small number of retained clients at any one time. If your sector is listed above and you would like to have a direct conversation with Paul Foster, please get in touch.

Book a Conversation
About

49 years of commercial experience. No juniors. No delegation.

Paul Foster is the Principal Architect of NHA. Every engagement is led personally by Paul from first conversation to final outcome.

Paul Foster — Principal Architect, Nathan Harmer Associates

Contact

paul.foster@
nathan-harmer-associates.co.uk

+44 (0)7964 623920

Office 7, 35–37 Ludgate Hill
London EC4M 7JN

The commercial architect behind NHA

Nathan Harmer Associates was not built from a methodology. It was built from 49 years of doing it. Paul Foster has spent his entire career in commercial roles — not consulting about them. He has run national sales teams, managed business development in strategic accounts worth £250M, built BD programmes from scratch, and sat in the room when the decisions were made.

NHA is the vehicle through which that experience is made available to a small number of retained clients at any one time. There are no junior teams. No account managers. No delivery frameworks handed to people who weren't in the room. Paul leads every engagement personally from first conversation to final outcome.

Career history

2026 —
Nathan Harmer Associates Ltd — Principal Architect. Founded April 2026 following exit from Auditel franchise. Retained commercial strategy and BD advisory, one client per sector per geography globally.
2010 – 2026
Auditel — Principal Consultant. Consultant of the Year 2024. Built and delivered the Xerox Carbon Neutral Managed Print Service. 15 years of retained client advisory across energy, telecoms, carbon, and managed services.
2007 – 2010
Capita plc — Business Development Director. £41.5M pipeline. Recruited by Paul Simpson. Redundancy following restructure under Dave Monks.
2004 – 2007
Communisis Group Strategic Partnerships — Recruited back personally by Denise Moran for the Barclays strategic account programme. Retained the Barclays contract and converted it from a single-division relationship to a full Group strategic partnership. HSBC and Sainsbury's subsequently added.
2002 – 2004
Navigator Communications / GI Solutions — Managing Director and Business Development Director.
1996 – 2002
Waddington Chorleys / Communisis Chorleys — Under Chairman Mike Mitchell and MD John Wells. Commercial and BD leadership across print and document management.
1991 – 1996
Colorgraphic — Working directly for Nick Dixon. Senior commercial roles in print and document services.
1984 – 1991
Moore Paragon — National commercial roles in business forms and document management.
1976 – 1984
Crombey Brothers / John Kent Menswear — Retail management. The foundation of 49 years of commercial discipline.
“I have spent 35 years doing this. Not advising people how to do it. Actually doing it. NHA was built on the commercial intelligence that only comes from being inside the room, running the programme, and carrying the number.”
Paul Foster — Principal Architect, Nathan Harmer Associates

Ready to have a direct conversation?

If your sector is listed on the sectors page and the position in your market is open, the starting point is a 30-minute call with Paul Foster directly.

Book a Conversation
How We Work

Senior commercial strategy. Retained. Advisory-only. Single fee.

The RCGA framework: Retain, Convert, Grow, Acquire. Four disciplines. One retained client per sector. Personal delivery throughout.

Retain · Convert · Grow · Acquire

Most BD programmes focus on acquisition. NHA's RCGA framework starts where the money already is — in your existing client base — and works outward. Convert is a particularly critical and often absent stage: the conversion of a retained client relationship into a significantly larger strategic account.

R

Retain

Protecting existing revenue by identifying and addressing the commercial risks that make retained clients vulnerable to attrition. Relationship mapping, value evidence, competitive threat assessment.

C

Convert

Elevating a retained transactional relationship into a strategic partnership. The Barclays case study is the proof of concept: a single-division contract retained and converted to a full Group strategic partnership over five years.

G

Grow

Structured expansion of existing strategic accounts through new service lines, divisional penetration, and scope growth. Revenue that doesn't require winning a new client.

A

Acquire

Targeted new client acquisition through commercial intelligence, precise proposition development, and a BD programme built around the clients most likely to become strategic accounts.

From first conversation to commercial outcome

1

Discovery Conversation

A 30-minute direct conversation with Paul Foster. No slides. No pitch. An honest assessment of whether there is a commercial fit between your situation and what NHA does.

2

Pre-Engagement Benchmark Declaration

Before any NHA advice is given, we establish in writing your existing commercial plans, pipeline, and targets. This is the PEBD — the baseline against which all NHA performance is subsequently measured. You cannot be charged a performance fee for something you were already going to achieve.

3

30-Day Assessment Period

NHA conducts a structured assessment of your commercial position, existing relationships, pipeline quality, and market opportunity. At the end of this period, NHA either commits to a full engagement or withdraws. If NHA withdraws, you pay nothing.

4

Retained Engagement

A formal retained engagement under the NHA Client Engagement Agreement. Monthly retainer plus a performance bonus structure tied to verified incremental revenue above the PEBD baseline.

5

Ongoing Advisory

Permanent access to Paul Foster for commercial strategy, BD architecture, proposition development, key account management, and opportunity assessment. NHA is a retained commercial partner, not a project resource.

The Single Fee Principle

NHA accepts no commissions, referral fees, kickbacks, or supplier incentives under any circumstances. Our fee comes only from you. Our advice goes only to you. There are no conflicts of interest because there is no structural mechanism through which a conflict could arise.

This is not a differentiator. It is a prerequisite for giving genuine commercial advice.

Fee Structure

  • Monthly RetainerFixed. Funds the ongoing advisory relationship and all Paul Foster time.
  • Assessment Period30 days. No charge if NHA withdraws.
  • Performance Bonus2–5% of verified incremental revenue above PEBD baseline.
  • No commissionsFrom any supplier, partner, or third party. Ever.
  • Self-funding by designNHA routinely identifies financial entitlements and recoverable value that can offset or fully fund the advisory retainer.

The starting point is a conversation.

30 minutes with Paul Foster. No slides. No pitch. An honest assessment of whether there is a fit.

Book a Conversation
Sectors

Eight sectors. One retained partner per sector, per geography.

NHA accepts one client per sector in each active territory. When that position is filled, it is closed.

01

Printing & Packaging

Volume pressure, digital substitution, sustainability compliance driving structural margin compression.

The commercial challenge in print and packaging is no longer primarily operational. Clients are consolidating supply chains, reducing print volumes, and applying sustainability obligations that disproportionately affect suppliers without verified carbon data or a credible environmental proposition.

NHA works with printing and packaging businesses to arrest retention risk on existing strategic accounts, develop commercial propositions that compete on value rather than price, and position the business ahead of EPR and CBAM requirements as a commercial differentiator.

  • Strategic account retention and rebid preparation
  • Proposition development for sustainability-led repositioning
  • New vertical market entry and pipeline architecture
  • CBAM and EPR commercial framing for client conversations

NHA Position

UK: Open

US: Open

Australia: Qualification in progress

02

Manufacturing

Export market development, CBAM exposure, R&D pipeline, strategic account growth.

UK manufacturing faces a convergence of pressures: post-tariff export disruption, CBAM obligations arriving January 2027, energy cost volatility, and a chronic underinvestment in commercial capability relative to operational capability.

  • BD pipeline architecture and key account strategy
  • CBAM commercial impact assessment and client communication
  • Innovation and Business Funding, ESG and International Services
  • Export market proposition development

NHA Position

UK: Open

US: Open

Canada: Open

03

Outsourcing

Strategic account retention, rebid defence, scope expansion, new service line commercialisation.

Outsourcing businesses face a specific and recurring commercial risk: the contract won on price three years ago is now vulnerable to a competitor who has invested in commercial capability and is building the relationship above the operational delivery layer.

NHA's founding proof of concept is the Barclays case study: a contract retained and converted from a single-division relationship to a full Barclays Group strategic partnership. That is the Convert stage of the RCGA framework.

  • Strategic account retention and relationship elevation
  • Rebid and competitive tender preparation
  • Scope expansion and new service line penetration
  • Executive-level relationship programme design

NHA Position

UK: Open

US: Open

04

Professional Services

Partnership positioning, key account strategy, cross-sell architecture, commercial governance.

Professional services firms often have sophisticated service delivery and underdeveloped commercial infrastructure. Partners who are technically excellent do not always have the skills to manage major client relationships strategically.

  • Key account management framework design
  • Cross-sell and adjacency proposition development
  • BD governance and pipeline accountability
  • New market entry and sector targeting

NHA Position

UK: Open

Australia: Open

05

Energy

Broker and reseller BD strategy, proposition differentiation, carbon service line development.

The energy brokerage and consultancy market is under structural pressure from commoditisation, regulatory change, and the growing expectation from clients that energy advisers can speak intelligently to carbon as well as cost.

  • Proposition development beyond procurement
  • Carbon service line commercial architecture
  • Key account retention and relationship deepening
  • BD pipeline structure and new client targeting

NHA Position

UK: Open from Oct 2026

US: Open

06

Telecoms & IT

Managed services growth, channel strategy, enterprise client targeting.

Telecoms and IT resellers face structural margin compression as commodity connectivity and hardware margins erode and managed services becomes the only viable route to retained, recurring revenue.

  • Managed services BD and proposition development
  • Enterprise client targeting and pipeline architecture
  • Channel partner strategy and commercial governance
  • Strategic account retention and scope expansion

NHA Position

UK: Open

US: Open

07

Construction

Framework positioning, repeat client strategy, supply chain BD, sustainability commercial framing.

Construction businesses that win on price face a perpetual margin problem. Framework positions won on capability and relationship are structurally more profitable, more predictable, and more defensible.

  • Framework positioning and public sector BD strategy
  • Strategic client retention and relationship development
  • Sustainability commercial positioning for procurement requirements
  • Supply chain BD and subcontractor commercial development

NHA Position

UK: Open

08

Metals & Materials

Carbon border adjustment exposure, export market positioning, strategic account growth.

The UK metals sector faces a commercial inflection point. EU CBAM entered its definitive period in January 2026. UK CBAM goes live January 2027. Businesses that frame this as a compliance cost will suffer it. Businesses that frame it as a commercial differentiator will retain and win business their competitors cannot hold.

  • CBAM commercial impact assessment and client communication strategy
  • Verified carbon data as key account retention and pipeline tool
  • Export market BD proposition (post-tariff transatlantic and EU)
  • Strategic account growth and new market entry
  • Identifying financial entitlements that can make the NHA advisory retainer self-funding

NHA Position

UK: Open

EU: Open

US: Open

Precision. Expertise. Commercial outcomes.

If your sector is listed above, let's talk.

NHA accepts one retained client per sector per geography. If your sector is open in your market, the starting point is a direct conversation.

Book a Conversation
Case Studies

Commercial outcomes, not presentations.

Every engagement NHA takes produces a measurable, verifiable commercial result. These are the cases we can share.

CS-001 · Outsourcing

The Barclays Group Strategic Partnership

Retain → Convert → Grow · £250M

CS-002 · Financial Services

Providian National Bank UK

Acquire → Retain · £3M p.a. · No competitive pitch

CS-003 · Financial Services

Vanquis Bank

Acquire · £2M · Zero prospecting cost

The Barclays Group Strategic Partnership

Retained
Critical first stage — and the hardest
Converted
Single division to Barclays Group
£250M
Total contract value
5 years
Programme duration

The Situation

In 2004, Paul Foster was recruited back to Communisis Group by Denise Moran specifically to manage Barclays business development. Communisis held a contract with Barclaycard — one division of the wider Barclays Group. The contract was under competitive pressure at renewal and the relationship existed almost entirely at an operational level. The strategic opportunity was visible but entirely unaddressed. And without intervention, there was a real risk of losing what it already had.

The Approach

The first and most critical stage was retention. The Barclaycard contract was secured by elevating the relationship from operational to strategic, building a value case that made switching cost prohibitive and introducing executive-level contact points above the procurement layer.

Once retained, the Convert stage was executed: mapping the full Group structure, identifying commercial sponsors at a senior level, and building a cross-divisional proposition at Group scale. HSBC and Sainsbury's were subsequently added using the same methodology.

The Outcomes

Retained
The foundation everything else was built on
£250M
Total contract value retained and grown
3
Major strategic accounts: Barclays, HSBC, Sainsbury's

Pre-Engagement Benchmark Declaration

Before NHA begins any engagement, we establish your existing commercial plans in writing. The performance bonus is only payable on revenue above that baseline. You cannot be charged for results you were already going to achieve.

Case Reference

Ref: CS-001

Sector: Outsourcing

Geography: UK

RCGA: Retain → Convert → Grow

Principles Applied

  • Retention first
  • Relationship elevated above operational
  • Single division → Group partnership
  • Replicated at HSBC, Sainsbury's
⇓ Download Case Study PDF

Providian National Bank UK

£3M
Annual value at peak
Zero
Competitive pitches to win
Multi-year
Retained until UK exit

The Situation

Providian National Bank was a US-originating consumer credit card business targeting the near-prime and sub-prime UK market. The operation required complex, high-volume, compliance-critical customer communications work that several suppliers had declined to take on. The account came through Dean Smith, who referred Paul to Lucy Holland, Providian's senior marketing operations contact.

The Approach

The account was not won through a competitive pitch. It was won through a specific act of commitment: taking on a data processing problem that other suppliers had declined to handle and solving it without conditions. That single unconditional act established the relationship on a foundation of trust that every subsequent commercial interaction was built on.

The Outcome — and What Followed

The account grew to approximately £3M per annum and ran until Providian's UK operation was acquired by Barclaycard in 2002. What Barclaycard acquired was the client book. What it did not acquire was the loyalty of the team that had built and run the Providian operation. Lucy Holland subsequently moved to establish Vanquis Bank. The Vanquis account followed the relationship. See CS-003.

The RCGA Principle Demonstrated

A client won not through marketing spend, competitive process, or price, but through a single act of commercial commitment that no competitor was prepared to match. The relationship equity built here survived a corporate acquisition and transferred across two employers. Every committed action builds future pipeline.

Case Reference

Ref: CS-002

Sector: Financial Services

Geography: UK

RCGA: Acquire → Retain

Principles Applied

  • Commitment over pitch
  • Won by doing what others refused
  • Trust survives corporate acquisition
  • Leads directly to CS-003
⇓ Download Case Study PDF

Vanquis Bank

£2M
Annual contract value
Zero
Prospecting cost
1 contact
Spanning two employers

The Situation

Vanquis Bank was established by Provident Financial PLC to serve the same near-prime consumer credit market that Providian had targeted. Lucy Holland — Paul Foster's key contact at Providian — moved to Vanquis with responsibility for the same workstreams. By this point, Paul was Managing Director of Navigator Communications. The question was not whether Lucy would consider another supplier. The question, which she had already answered through her behaviour, was whether the person she trusted had moved with the market.

The Approach

There was no approach in the conventional sense. No pitch, no tender, no competitive process. The relationship built at Providian — founded on the unconditional commitment that won the original account — transferred across the corporate boundary when Lucy Holland moved employers. Navigator Communications received the Vanquis account because one person trusted another person, and that trust was portable.

When Paul subsequently left Navigator Communications, the Vanquis account did not stay. It left because he had. The value at departure is the most precise measure of the value that had been built.

CS-002 and CS-003: Two Chapters of One Story

£2M
Transferred through relationship equity alone
£0
Prospecting, marketing or pitch cost
CS-002
The case that made CS-003 possible

What these two cases together demonstrate

The relationship equity built at Providian through a single unconditional act survived a corporate acquisition, transferred across two employers, and generated £2M of acquisition-stage revenue at zero prospecting cost. This is the RCGA Acquire component at its most concentrated: not prospecting, not marketing, not pitching — but relationship equity, built deliberately, that compounds across time and organisations.

Case Reference

Ref: CS-003

Sector: Financial Services

Geography: UK

Period: 2003–2004

RCGA: Acquire (relationship-led)

Principles Applied

  • Relationship equity is portable
  • Survives employer change
  • Zero prospecting cost acquisition
  • Every act of commitment builds future pipeline
⇓ Download Case Study PDF

Want to understand how this applies to your business?

The RCGA methodology is replicable across sectors and account sizes. The starting point is a conversation.

Book a Conversation
Resources

Commercial intelligence. No registration walls.

NHA publishes a small number of substantive commercial resources. Open-access articles require no registration. Gated downloads require only a name and email.

Open access — read in full below

No form. No gate.

Thought Leadership · NHA-TL-001

The Thirty-Year Mistake

How finance dismantled the sales function — and what it costs every year it stays broken

Over thirty years, the finance function progressively dismantled the integrated commercial and sales capability of the British mid-market business. It did this with the best of intentions, using perfectly legitimate tools, and the damage it caused has been structurally invisible to most boards until the moment it became a crisis. This paper explains how it happened, why it persists, and what a commercial strategy that corrects for it looks like.

The Measurement Problem

When finance applies its measurement framework to sales and BD, it captures what is measurable and misses what is not. Revenue generated this quarter is measurable. The depth of a client relationship that will determine whether a contract renews in eighteen months is not. The institutional knowledge held by a senior account manager who has been calling on a client for a decade is not.

The thirty-year mistake is the progressive elimination of everything that does not appear in the measurement framework, in the name of efficiency. Senior account managers replaced by junior ones. Relationship development time replaced by call rate targets. Strategic client conversations replaced by quarterly business reviews structured around the supplier's reporting requirements rather than the client's commercial priorities. Each individual decision looks defensible in a spreadsheet. The cumulative effect is the erosion of the commercial capability that generates renewal, expansion, and referral.

The Four Structural Damages

1. Loss of Commercial Memory

Every restructuring cycle removes a layer of commercial experience. Successors inherit a CRM record. They do not inherit twenty years of context that made those records meaningful.

2. Separation of Selling from Delivering

The most powerful commercial conversations happen when the person who can solve the problem is the same person having the commercial conversation. Structural separation destroys this.

3. Destruction of Strategic Account Development

Strategic account development requires investment of senior time that does not produce measurable return quarterly. Finance eliminates the investment before the return arrives.

4. The Procurement Substitution

As suppliers reduced commercial investment, buyers replaced relationship-based purchasing with process-based procurement. The relationship advantage that took decades to build was superseded by a matrix treating all suppliers as interchangeable.

Why It Persists — The Misdiagnosis Cycle

The thirty-year mistake persists because it is invisible from inside the measurement framework that created it. When commercial performance deteriorates, the standard response is a sales process intervention: a new CRM system, a new pipeline methodology, a new sales director. These interventions address the visible symptoms and leave the structural cause untouched.

“The finance function did not set out to damage commercial capability. It set out to manage cost. The two things turned out to be the same, and it took thirty years for most boards to notice.”

NHA-TL-001 — NATHAN HARMER ASSOCIATES

Reference

Ref: NHA-TL-001

Published: May 2026

Author: Paul Foster

Access: Open

If this paper describes your business, the next step is a 30-minute conversation.

Book a Conversation ⇓ Download PDF
Thought Leadership · NHA-TL-002

The Burning Building Principle

What genuinely dysfunctional environments reveal about commercial leadership

Most senior commercial leaders spend their careers in organisations that more or less function. The conditions that make sales and business development possible are simply assumed. They should not be. The most important commercial lessons are learned in the places where none of those conditions exist. This paper is about what a burning building teaches, and why the principles extracted from those conditions are more durable than anything learned in a stable environment.

What a Burning Building Looks Like

A burning building in commercial terms is a specific set of conditions: no coherent management structure; financial controls that manage appearances rather than performance; clients who are already leaving; a leadership culture of blame avoidance; unreasonable demands with no structural support to meet them. This is more common than leadership literature acknowledges.

Three Lessons That Last a Career

1. Trust cannot be purchased with promises

Clients who have been let down are not irrational. Their scepticism has been earned. The only path back is specificity and consistency: precise undertakings, delivered without exception. The relationship does not recover in a meeting. It recovers across dozens of interactions, each of which either builds or destroys the accumulated trust balance.

2. BD at two speeds simultaneously

Client recovery is immediate and backward-looking. New commercial development is strategic and forward-looking. A burning building removes the luxury of sequencing them. The commercial leader who has operated at both speeds in genuine crisis is structurally better at prioritisation than one who has only ever worked in comfortable conditions.

3. Separate what you control from what you cannot

Attempting to fix the organisation while simultaneously serving the client produces failure at both. In a stable environment, where the consequences of this error are less visible, the same discipline produces a sustained competitive advantage that most competitors are not replicating.

“The worst environments produce the clearest thinking. When nothing works, you discover very quickly what commercial leadership actually requires, and what was simply comfortable habit.”

NHA-TL-002 — NATHAN HARMER ASSOCIATES

Reference

Ref: NHA-TL-002

Published: May 2026

Author: Paul Foster

Access: Open

If this paper describes an environment you recognise, the next step is a conversation.

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Thought Leadership · NHA-TL-003

The Credentials Gap

Why sustainability investment fails commercially, and what the missing component always is

Thousands of mid-market businesses are making significant investments in sustainability credentials — verified carbon accounting, product carbon footprints, ISO certification, chain of custody, independent audit. The technical work is sound. The commercial return is absent. The reason is consistent: the credentials were built facing inward, towards compliance, and nobody built the commercial architecture facing outward, towards the market. The investment sits on the balance sheet as a cost. It should be generating revenue.

The Three Walls Every Sustainability Proposition Hits

The Legal Wall

The terminology of sustainability — carbon neutral, net zero, climate positive — is increasingly toxic in corporate legal departments. Not because the claims are false. Because interpretation in consumer protection law bears no relationship to technical meaning. The credentials survived. The proposition did not.

The Procurement Wall

Procurement departments exist to optimise cost. When a sustainability premium appears as a line item, the response is predictable: remove it. The people who want the credentials do not control the budget. The people who control the budget do not understand why they should pay for them.

The Language Wall

The sustainability professional speaks in tonnes of CO² equivalent and lifecycle assessment scope boundaries. The commercial buyer has two questions: Why should I care? And how does this help me sell more? Neither is answered by a verification certificate. Both must be answered before the buying decision is made.

The Pattern Repeating Right Now: CBAM, EPR and Digital Product Passports

The EU CBAM entered its definitive period in January 2026. The UK CBAM goes live January 2027. Extended Producer Responsibility is already generating invoices. Digital Product Passports are mandatory across an expanding range of EU product categories. In each case the structure is identical: a regulatory requirement generates a compliance investment, the credentials sit in a compliance function without a commercial strategy, and the investment returns nothing beyond avoiding a penalty. The businesses that generate commercial return are the ones that treat compliance investment as the foundation of a sales proposition.

“The credentials are real. The verification is rigorous. The market does not respond. The diagnosis is almost always the same: nobody answered the question every buyer actually asks. Why should I care? And how does this help me sell more?”

NHA-TL-003 — NATHAN HARMER ASSOCIATES

Reference

Ref: NHA-TL-003

Published: May 2026

Author: Paul Foster

Access: Open

If your sustainability investment is not yet generating commercial return, a conversation costs nothing.

Book a Conversation ⇓ Download PDF

The RCGA Master Narrative

Name and email required.

Proprietary Methodology · NHA-RCGA-v4

Retain · Convert · Grow · Acquire

The full evidence brief for NHA's commercial methodology. Structured as a chronological account of a methodology that operated consistently across multiple businesses, sectors, and decades before it was named. The cases described are real. The outcomes are verifiable. The methodology is transferable.

Contents include:

  • The four RCGA components as an integrated commercial system
  • CS-002: Providian National Bank — £3M, won without competitive pitch
  • CS-003: Vanquis Bank — £2M at zero prospecting cost
  • CS-001: Barclays Group — Retain → Convert → £250M
  • Why relationship equity transfers across organisations

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Download the RCGA Narrative

NHA will not share your details or contact you without your request.

NHA Credentials & Capability Statement

Name and email required.

Credentials · Gated

The commercial model, the RCGA framework, the Single Fee Principle, sector coverage, fee structure, and the founding Barclays case study. 12 pages. Suitable for sharing with boards and leadership teams.

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Want to discuss what you've read?

If any of the above has resonated with your commercial situation, the next step is a direct conversation with Paul Foster.

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Get In Touch

A direct conversation. No slides. No pitch.

30 minutes with Paul Foster. An honest assessment of whether there is a fit between your commercial situation and what NHA does.

Select a time that suits you

Choose a slot directly from Paul's calendar. 30 minutes. No preparation required on your part.

Telephone

+44 (0)7964 623920

Registered Office

Office 7, 35–37 Ludgate Hill
London EC4M 7JN

Company Details

Nathan Harmer Associates Ltd
Company No. 07629278
VAT No. 119 9833 75
ICO Reg. Z2996124

What to expect

  • 30 minutes, no longer
  • No slides or presentation from NHA
  • A direct conversation about your commercial situation
  • An honest view on whether there is a fit
  • No obligation beyond the call