Company lists · Data refreshed September 2026

Top 25 Prompt engineering staffing companies based in London, United Kingdom

Name: Prompt engineering staffing companies 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 133 companies tracked

RevenueBase identified 133 prompt engineering staffing companies headquartered in London, United Kingdom as of September 2026 and tracks 1,366 professional contacts across them, including 376 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers prompt engineering staffing companies 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

133Companies

1,366Contacts tracked

376Verified emails

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The 25 largest prompt engineering staffing companies based in London, United Kingdom

Ranked by team size

Top 25 of 133 prompt engineering staffing companies 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 staffing companies: 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	Skillrecruit	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	125 contacts →
	Partial evidence “Skilliantech Ltd, trading as “SkillRecruit”, is a specialist IT and Engineering recruitment agency delivering comprehensive coverage of recruitment services across all industries…” Source: RevenueBase Database · checked Sep 29, 2026
2	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
3	Deploy Recruitment Group	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	69 contacts →
	Partial evidence “Infrastructure and technology experts; Deploy Recruitment Group provides quality and safe turnkey solutions across Rail and Infrastructure, Engineering and Manufacturing, Energy…” Source: RevenueBase Database · checked Sep 29, 2026
4	Twentyai	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	68 contacts →
	Partial evidence “TwentyAI is a talent and staffing solutions firm that combines cutting-edge AI technology, deep data insights, and human expertise to connect top talent with outstanding…” Source: RevenueBase Database · checked Sep 29, 2026
5	Signify Technology	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	61 contacts →
	Partial evidence “We aim to build exceptional teams in the tech space, focusing on two core engineering specialisms: Advanced Software Engineering and AI, ML, & Data Engineering.” Source: RevenueBase Database · checked Sep 29, 2026
6	Future Engineering Recruitment LTD	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	55 contacts →
	Indirect evidence “Since our inception in 2009, Future has built a reputation based on the quality of our service, our principles of honesty, integrity, efficiency and always doing the right thing…” Source: RevenueBase Database · checked Sep 29, 2026
7	Ohuk Limited	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	18 contacts →
	Indirect evidence “We know that the Construction industry relies on locating the best talent around.” Source: RevenueBase Database · checked Sep 29, 2026
8	Virtotech	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	16 contacts →
	Indirect evidence “VirtoTech is on a mission to connect the world’s top companies with the best technology contractors.” Source: RevenueBase Database · checked Sep 29, 2026
9	Truenorth	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	11 contacts →
	Indirect evidence “We are on a mission to make people happier at work.” Source: RevenueBase Database · checked Sep 29, 2026
10	Logikk	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	11 contacts →
	Indirect evidence “Specialist AI recruitment.” Source: RevenueBase Database · checked Sep 29, 2026
11	Reuben Chase	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	10 contacts →
	Indirect evidence “At Reuben Chase we specialise in recruiting global professionals from IT sectors with an extra personal touch.” Source: RevenueBase Database · checked Sep 29, 2026
12	Techire AI	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	7 contacts →
	Indirect evidence “Techire AI - Your Gen AI Hiring Partner.” Source: RevenueBase Database · checked Sep 29, 2026
13	Detail Cloud Technology	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	7 contacts →
	Indirect evidence “DETAIL Cloud Recruitment Our Expertise At DETAIL, we focus exclusively on the appointment of skilled technology professionals withi the areas of AI, ML roles and Data Architecture.” Source: RevenueBase Database · checked Sep 29, 2026
14	Addanex International	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	6 contacts →
	Indirect evidence “focus on supplying the strongest “Tried and Trusted” freelance experts across Europe and SOW / Project Delivery services The AddanEx International team have years of experience…” Source: RevenueBase Database · checked Sep 29, 2026
15	Perseus People	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	5 contacts →
	Partial evidence “Perseus People is a boutique staffing agency, focused within software development, AI, data and cloud.” Source: RevenueBase Database · checked Sep 29, 2026
16	R&a Consultants	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	5 contacts →
	Partial evidence “Welcome to R&A, where we excel in crafting tailored recruitment solutions exclusively designed for the dynamic engineering sector.” Source: RevenueBase Database · checked Sep 29, 2026
17	EPC Recruitment Solutions	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	5 contacts →
	Partial evidence “EPC Recruitment Solutions is an engineering and technical recruitment specialist, with over 20 years' experience in successfully placing high calibre staff for contract, interim…” Source: RevenueBase Database · checked Sep 29, 2026
18	Madison Bridge	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	5 contacts →
	Indirect evidence “At Madison Bridge, we specialise in connecting top-tier talent with cutting-edge opportunities in Generative AI, Machine Learning, and Data Science.” Source: RevenueBase Database · checked Sep 29, 2026
19	Accelerated People Management LTD	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	4 contacts →
	Partial evidence “Engineering & Technical consultancy on a mission to add genuine value to growing enterprises globally, through exceptional motivational matching and introduction of the best…” Source: RevenueBase Database · checked Sep 29, 2026
20	Pros2work	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	3 contacts →
	Indirect evidence “At Pros2Work we love people and Tech.” Source: RevenueBase Database · checked Sep 29, 2026
21	Talent Network	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	3 contacts →
	Indirect evidence “Our mission at Talent Network is to make hiring easy and fast for companies, while providing our candidates with unique and relevant opportunities.” Source: RevenueBase Database · checked Sep 29, 2026
22	Tekrek Consultants	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	3 contacts →
	Partial evidence “TekRek Consultants has been a trusted provider of IT recruitment and staffing services for the past five years, connecting organisations with highly specialised IT professionals.” Source: RevenueBase Database · checked Sep 29, 2026
23	Primehire	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	3 contacts →
	Indirect evidence “At primehire, we specialize in connecting exceptional talent with the companies shaping the future of AI.” Source: RevenueBase Database · checked Sep 29, 2026
24	A-Tech Recruitment	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	3 contacts →
	Indirect evidence “A-Tech is a forward-thinking recruitment agency that provides top Software & AI Talent to the world's most exciting start-ups across the United States & Germany.” Source: RevenueBase Database · checked Sep 29, 2026
25	Obsidian Search	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	3 contacts →
	Indirect evidence “Any recruitment agency can send CVs.” 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 staffing companies. 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 staffing companies.
Partial evidence: Its own public description names part of prompt engineering staffing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name prompt engineering staffing companies. 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 133 prompt engineering staffing companies based in London, United Kingdom

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Prompt engineering staffing companies based in London, United Kingdom at a glance

As of Sep 29, 2026

27.5%Verified-email coverage

10.3Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 133 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 staffing companies, 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 staffing companies”. 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 staffing companies), 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 staffing companies, 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, 376 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.

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 staffing companies, 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 staffing companies are there based in London, United Kingdom?

RevenueBase identified 133 prompt engineering staffing companies 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?

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

Which city in the United Kingdom has the most prompt engineering staffing companies?

London leads the United Kingdom with 133 headquartered companies, followed by Manchester (17) and Bristol (12).

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 376 verified decision-maker contacts tracked across these 133 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.