Company lists · Data refreshed September 2026

Top 25 Prompt engineering consultancies based in London, United Kingdom

Name: Prompt engineering consultancies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 277 companies tracked

RevenueBase identified 277 prompt engineering consultancies headquartered in London, United Kingdom as of September 2026 and tracks 6,004 professional contacts across them, including 2,717 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers prompt engineering consultancies headquartered in London, United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review

277Companies

6,004Contacts tracked

2,717Verified emails

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The 25 largest prompt engineering consultancies based in London, United Kingdom

Ranked by team size

Top 25 of 277 prompt engineering consultancies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to prompt engineering consultancies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Hoare LEA	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	501-1,000	1,103 contacts →
	Partial evidence “We are an award-winning engineering consultancy with a creative team of engineers, designers, and technical specialists.” Source: RevenueBase Database · checked Sep 29, 2026
2	Waterman Group	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1,001-5,000	563 contacts →
	Partial evidence “Waterman Group is a multidisciplinary consultancy providing sustainable solutions to meet the planning, engineering design and project delivery needs of the property…” Source: RevenueBase Database · checked Sep 29, 2026
3	Alten LTD - UK	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	10001+	529 contacts →
	Partial evidence “We are a leading Engineering and IT consultancy operating across all sectors in 30 different countries.” Source: RevenueBase Database · checked Sep 29, 2026
4	AKT II	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	310 contacts →
	Partial evidence “AKT II is a design-led interdisciplinary engineering consultancy that has won over 600 awards for its work in the UK and across the world.” Source: RevenueBase Database · checked Sep 29, 2026
5	Price & Myers	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	159 contacts →
	Partial evidence “Consulting Engineers Price & Myers is a structural and civil engineering practice, established by Sam Price and Robert Myers in 1978.” Source: RevenueBase Database · checked Sep 29, 2026
6	Meinhardt UK And Ireland	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	133 contacts →
	Partial evidence “Meinhardt (UK) is a leading international multidisciplinary engineering consultancy.” Source: RevenueBase Database · checked Sep 29, 2026
7	Mcadam Design LTD	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	124 contacts →
	Partial evidence “Established in 1963, McAdam initially focused on Civil Engineering Projects with Architecture added as a discipline in 1975.” Source: RevenueBase Database · checked Sep 29, 2026
8	SRC Infrastructure	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	114 contacts →
	Partial evidence “SRC Infrastructure has been providing project management and engineering advisory, consultancy and managed service solutions to UK infrastructure clients for 20 years.” Source: RevenueBase Database · checked Sep 29, 2026
9	Campbellreith	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	113 contacts →
	Indirect evidence “CampbellReith is an independent firm of consulting engineers providing structural, civil, geotechnical, land quality, development planning and transport planning services.” Source: RevenueBase Database · checked Sep 29, 2026
10	WALSH	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	110 contacts →
	Partial evidence “Walsh is a B Corp Certified structural, civil and geotechnical engineering consultancy specialising in complex developments on constrained urban sites.” Source: RevenueBase Database · checked Sep 29, 2026
11	GER Consultancy	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	n/a	102 contacts →
	Partial evidence “GER Consultancy specialises in the selection and provision of qualified and experienced engineering and technical personnel to clients within the Steel, Power Generation and Oil &…” Source: RevenueBase Database · checked Sep 29, 2026
12	Hurley Palmer Flatt	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	91 contacts →
	Partial evidence “In 2019, Hurley Palmer Flatt, the UK’s leading independent multidisciplinary engineering consultancy, joined global design firm HDR.” Source: RevenueBase Database · checked Sep 29, 2026
13	FHP Group	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	86 contacts →
	Partial evidence “FHP Group is a leading Mechanical, Electrical, Public Health, Energy and Sustainability engineering consultancy with over 50 years of experience!” Source: RevenueBase Database · checked Sep 29, 2026
14	Design 4 Structures	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	67 contacts →
	Partial evidence “Design4Structures is an award-winning Engineering and Construction Modelling Consultancy.” Source: RevenueBase Database · checked Sep 29, 2026
15	Berkeley Engineering Consultants	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	501-1,000	64 contacts →
	Partial evidence “Berkeley Engineering is an engineering and management consultancy with a head office in Mayfair, London.” Source: RevenueBase Database · checked Sep 29, 2026
16	CBG Consultants LTD	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	61 contacts →
	Indirect evidence “As an ambitious building services consultancy, at CBG Consultants we have a strong commitment to excellence.” Source: RevenueBase Database · checked Sep 29, 2026
17	Banyards	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	58 contacts →
	Indirect evidence “We are a specialist consultancy business delivering mechanical and electrical design and commissioning consultancy.” Source: RevenueBase Database · checked Sep 29, 2026
18	Qoda Consulting	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	58 contacts →
	Indirect evidence “Welcome to QODA: working hard to meet the needs of our clients and all those who use the buildings we help to create.” Source: RevenueBase Database · checked Sep 29, 2026
19	WBD Group	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	51 contacts →
	Partial evidence “WBD Group is a leading multidisciplinary engineering consultancy based in Central London.” Source: RevenueBase Database · checked Sep 29, 2026
20	VEDA	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	48 contacts →
	Partial evidence “VEDA Associates is an independent, multidisciplinary engineering consultancy driven by a passion for problem solving and technical excellence.” Source: RevenueBase Database · checked Sep 29, 2026
21	Cares Group	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	48 contacts →
	Partial evidence “We are an international Engineering consultant with a team of over 40 chartered engineers, environmentalists, Maritime experts, and technicians across West Africa, UK, and…” Source: RevenueBase Database · checked Sep 29, 2026
22	Poise Group	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	42 contacts →
	Strong evidence “We are one of the UK’s leading engineering consultancies providing Multi-disciplinary Design and holistic Project Management in rail, built environment, and energy related sectors.” Source: RevenueBase Database · checked Sep 29, 2026
23	Sari Consulting LTD	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	41 contacts →
	Partial evidence “A dynamic international engineering consultancy company providing project management, technical assistance, capacity-building and design services for the development of…” Source: RevenueBase Database · checked Sep 29, 2026
24	London Bridge Associates LTD	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	38 contacts →
	Partial evidence “LBA is an engineering consultancy specialising in tunnelling, underground works and heavy civil engineering construction.” Source: RevenueBase Database · checked Sep 29, 2026
25	Aksward Limited	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	35 contacts →
	Indirect evidence “Originally formed in 2005 by the merger of Andrews, Kent & Stone and Anthony Ward Partnership, AKSWard has offices in London, Oxford, and Southampton.” Source: RevenueBase Database · checked Sep 29, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: prompt engineering consultancies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names prompt engineering consultancies.
Partial evidence: Its own public description names part of prompt engineering consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name prompt engineering consultancies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 277 prompt engineering consultancies based in London, United Kingdom

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Prompt engineering consultancies based in London, United Kingdom at a glance

As of Sep 29, 2026

45.3%Verified-email coverage

21.7Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

161

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 277 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among prompt engineering consultancies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in London, United Kingdom whose own description of what they do matches “prompt engineering consultancies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names prompt engineering consultancies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among prompt engineering consultancies, and records with no verified work email. Companies headquartered outside London are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 2,717 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Prompt engineering consultancies by metro in the United Kingdom

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names prompt engineering consultancies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many prompt engineering consultancies are there based in London, United Kingdom?

RevenueBase identified 277 prompt engineering consultancies headquartered in London, United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Hoare LEA, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most prompt engineering consultancies?

London leads the United Kingdom with 277 headquartered companies, followed by Manchester (41) and Birmingham (40).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,717 verified decision-maker contacts tracked across these 277 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.