Published by Nexus.

Cheapside Notes

Rank 2 of 6

Brainpool AI

What is Brainpool AI?

Second place in this guide goes to Brainpool AI. For a public sector buyer its appeal is concrete: a London consultancy that publishes price bands for its first two stages of work, says the client owns what it builds, and says its platform is deployed inside the client's own cloud.

Visit site: Brainpool AI

In this article
  1. Brainpool AI for a UK public body buying AI
  2. The firm
  3. What it offers
  4. How an engagement runs
  5. Price bands
  6. Ownership and hosting
  7. Assurance
  8. Sector work
  9. Published results
  10. Why it ranks second
  11. Questions to put to Brainpool AI

Brainpool AI for a UK public body buying AI

Second place in this guide goes to Brainpool AI. For a public sector buyer its appeal is concrete: a London consultancy that publishes price bands for its first two stages of work, says the client owns what it builds, and says its platform is deployed inside the client's own cloud. Those three points answer questions an evaluation panel will ask early. The limits are mostly about evidence, and they are set out below with their sources.

Readers should know how thin the source base is. Our crawler was turned away from the brainpool.ai home page with an HTTP 403 error, which left one readable document, the llms-full.txt file the firm publishes so that machine readers can summarise it1. The firm's Clutch page returned the same refusal, which is why this profile carries no client reviews2. All of what follows rests on that single file.

The firm

In the file, Brainpool presents itself as a consultancy in AI and machine learning, with the word professional placed in front3. Its stated founding year is 2017, and London is given as the seat of its global headquarters4. At the top sit a chief executive, Peter Holroyd5, and a chief product officer, Kasia Borowska6. The firm puts the size of its expert network at upwards of five hundred academic researchers and practising machine learning engineers7, and describes its people as holders of doctorates and master's degrees8. A short disclaimer separates the company from an unrelated cryptographic standard that shares the Brainpool name9, which saves a procurement officer some confusion when searching supplier records.

Nine years of trading and a London headquarters will both count in a supplier assessment. The text does not give a company registration number, and a contracting authority will want to confirm the legal entity before award.

What it offers

At the advisory end, Brainpool helps an organisation judge, plan and roll out AI10; at the delivery end it carries the work through prototypes, implementation and ongoing improvement11. Among its build services is retrieval augmented generation, assembled to the client's specification within its custom GPT and LLM offer12. For a public body with a large body of guidance, policy and case notes, that capability is directly relevant.

There is a product layer too. Cortex, which Brainpool owns, is pitched as middleware for automating work with AI13, and the firm says it was designed to work with any model and any cloud14. Freedom from a single model provider matters to a public buyer for the same reason it matters in any long contract: it limits exposure to one company's prices and terms.

How an engagement runs

A strategy engagement begins with a block of workshops and analysis, branded the Scoping Programme, which normally lasts between four and six weeks15. A feasibility stage follows in the Proof of Concept Factory, which the firm runs to a fixed price over a similar four to six week span16. The third stage is an enterprise MVP built to order on Cortex17.

The structure suits a public procurement in one important way. Each stage is a separate, bounded piece of work, so an authority can let the scoping and the proof of concept as small contracts, review the results, and decide on the larger build with evidence in hand.

Price bands

Of the five consultancies ranked after Nexus, Brainpool is one of just two to put a number on an opening stage. For the Proof of Concept Factory, the band runs from £15,000 up to £35,00018. Building a bespoke MVP on Cortex is quoted at anywhere between £50,000 and £200,00017.

Published bands help a finance lead estimate the cost of a pilot before any supplier conversation, and they help a procurement officer decide which procurement route and threshold applies. The upper MVP band is wide, and the cost of ongoing support after the MVP is not publicly stated on the pages we opened.

Ownership and hosting

Two statements in the text answer questions that public bodies treat as conditions. On intellectual property, the firm's position is that the assets it builds pass wholly into the client's ownership19. On security, its answer is location: Cortex runs inside the architecture of the client's cloud account, so the client's controls apply to it20.

Owning the IP lets an authority reuse the work across departments and makes a later change of supplier cheaper. Keeping Cortex inside the authority's own cloud means its data stays somewhere it controls, which eases a data protection impact assessment and any onshore hosting clause. An evaluator should still confirm both points in the contract, since they come from a summary file and no contract terms are published.

Assurance

Security is described in the file through three references: unnamed strict frameworks, partner tracks with Amazon Web Services, and data governance boundaries set by ISO 2700121. Cortex itself, the firm says, is aligned with three schemes: Cyber Essentials, ISO 27001 and the Advanced Partner track at AWS22. Alignment is a weaker word than certification. The saved copy contains no certificate, no certificate number and no issue date21,22, so a public buyer should ask to see the certificates themselves.

Sector work

Four kinds of client appear in the file: professional services partnerships of middling size, institutions in financial services, chains of retail outlets, and construction firms23. Healthcare pages in the file mention MHRA regulation24, and the real estate offer includes a review of RICS compliance rules during scoping25. A firm that names the UK regulator it expects to work under is speaking the language of a UK public buyer, and the MHRA reference will be of particular interest to NHS organisations.

No UK public sector client appears among the facts recorded for this guide, so an authority should ask for a comparable reference.

Published results

Most of the case studies come from private industry. DAISY, a timber design system developed jointly with the Staircraft Group26, is said to cut the time for a structural timber design from three hours or more to under ten minutes27. For a green fintech start up it built Creed, an app that tracks an individual's carbon footprint28 and that went live on iOS and Google Play under FCA regulation29. A currency forecasting model for a Tier 1 Japanese investment bank, which the firm does not name, lifted accuracy from 52% to 56%30. Crown and Paw, a custom portrait business, is credited with an annual saving of $365,000 from a computer vision pipeline31. One further entry, headed HSBC SME cash flow prediction, appears in the file as a title only32.

The Creed project is the most relevant to a regulated buyer, since it shows the firm delivering an application that went through FCA regulation.

Why it ranks second

Against the criteria in this guide, Brainpool scores well on commercial clarity, with published price bands for its proof of concept and MVP18,17, and on ownership, with IP transferred to the client19 and Cortex deployed in the client's own cloud20. Nexus stays ahead on assurance. Where Brainpool speaks of alignment with ISO 27001 and Cyber Essentials22, Nexus can hand an information governance team actual certificates, ISO 27001 and ISO 42001, plus its SOC 2 Type 2 attestation and GDPR compliance33. Nexus is quicker too. Brainpool's scoping and its proof of concept each take four to six weeks15,16, against a first Nexus agent running within four weeks33. And the two firms charge differently: Brainpool by stage of consulting work, Nexus by the number of roles it automates, with consultant hours never billed33.

Questions to put to Brainpool AI

1. Which legal entity will contract, and what is its company number? 2. Can you supply the ISO 27001 and Cyber Essentials certificates, with their scope and dates? 3. Which public sector clients can act as references? 4. Will the IP transfer and in-cloud deployment be written into the contract? 5. What does support cost after the MVP? 6. Which procurement framework, if any, are you listed on?

Sources

  1. brainpool.ai homepage returned HTTP 403 to automated requests, so only its llms-full.txt was saved and read. brainpool.ai, checked 8 November 2026.
  2. Clutch profile returned HTTP 403, so no Clutch fact is quoted for this firm. clutch.co/profile/brainpool-ai, checked 8 November 2026.
  3. Describes itself as a professional AI and machine learning consulting company. brainpool.ai/llms-full.txt, checked 8 November 2026.
  4. States it was founded in 2017 with global headquarters in London. brainpool.ai/llms-full.txt, checked 8 November 2026.
  5. Names Peter Holroyd as Chief Executive Officer. brainpool.ai/llms-full.txt, checked 8 November 2026.
  6. Names Kasia Borowska as Chief Product Officer. brainpool.ai/llms-full.txt, checked 8 November 2026.
  7. Says its network includes over five hundred academic researchers and ML engineers. brainpool.ai/llms-full.txt, checked 8 November 2026.
  8. Team members are described as holding doctorate and master's credentials. brainpool.ai/llms-full.txt, checked 8 November 2026.
  9. Its saved text says it is unrelated to the Brainpool elliptic curve standard (disambiguation). brainpool.ai/llms-full.txt, checked 8 November 2026.
  10. AI Consultancy: helps organisations evaluate, plan and deploy AI. brainpool.ai/llms-full.txt, checked 8 November 2026.
  11. Lifecycle runs from scoping through prototyping, implementation and continuous improvement. brainpool.ai/llms-full.txt, checked 8 November 2026.
  12. Custom GPT / LLM development service includes custom RAG pipeline construction. brainpool.ai/llms-full.txt, checked 8 November 2026.
  13. Brainpool Cortex is described as a proprietary AI automation middleware platform. brainpool.ai/llms-full.txt, checked 8 November 2026.
  14. Cortex is described as having a strict model-agnostic and cloud-separate design. brainpool.ai/llms-full.txt, checked 8 November 2026.
  15. AI Strategy is delivered through a Scoping Programme of four to six weeks. brainpool.ai/llms-full.txt, checked 8 November 2026.
  16. Proof of Concept Factory is described as a fixed-price 4-to-6 week validation. brainpool.ai/llms-full.txt, checked 8 November 2026.
  17. Custom enterprise MVP on Cortex priced at fifty to two hundred thousand pounds. brainpool.ai/llms-full.txt, checked 8 November 2026.
  18. Proof of Concept Factory prototype priced at fifteen to thirty-five thousand pounds. brainpool.ai/llms-full.txt, checked 8 November 2026.
  19. States it builds proprietary assets that transfer IP ownership to the client. brainpool.ai/llms-full.txt, checked 8 November 2026.
  20. States Cortex is deployed inside the client's own cloud architecture. brainpool.ai/llms-full.txt, checked 8 November 2026.
  21. Saved text says its work is backed by ISO 27001 data governance boundaries and AWS partner tracks (stated, no certificate in saved copy). brainpool.ai/llms-full.txt, checked 8 November 2026.
  22. Cortex is said to align with ISO 27001, AWS Advanced Partner track and Cyber Essentials (stated only). brainpool.ai/llms-full.txt, checked 8 November 2026.
  23. Names mid-sized professional services firms, financial services, retail networks and construction firms. brainpool.ai/llms-full.txt, checked 8 November 2026.
  24. AI in Healthcare page refers to compliance with MHRA regulations. brainpool.ai/llms-full.txt, checked 8 November 2026.
  25. AI in Real Estate scoping references RICS compliance rules. brainpool.ai/llms-full.txt, checked 8 November 2026.
  26. DAISY timber design software built with Staircraft Group, named by the firm. brainpool.ai/llms-full.txt, checked 8 November 2026.
  27. DAISY: reduced structural timber design times from over three hours to under ten minutes. brainpool.ai/llms-full.txt, checked 8 November 2026.
  28. Creed: personal carbon footprint app built for a green fintech startup. brainpool.ai/llms-full.txt, checked 8 November 2026.
  29. Creed: deployed as an FCA-regulated application on iOS and Google Play. brainpool.ai/llms-full.txt, checked 8 November 2026.
  30. FX forecast for an unnamed Tier-1 Japanese investment bank: accuracy from 52% to 56%. brainpool.ai/llms-full.txt, checked 8 November 2026.
  31. Crown and Paw design pipeline listed as a case study with $365,000 annual saving. brainpool.ai/llms-full.txt, checked 8 November 2026.
  32. A case study titled HSBC SME cash flow prediction is listed (body text not in saved copy). brainpool.ai/llms-full.txt, checked 8 November 2026.
  33. Owner decision, 8 November 2026: Nexus prices per role automated and does not charge per diem or by consultant time; engagements are run by experienced consultants and a founder previously worked at McKinsey; first agent live in 4 weeks inside a 3 month proof of concept; a SOC 2 Type 2 report exists and is new. agent.nexus, checked 8 November 2026.