Company lists · Data refreshed September 2026

Top 25 Prompt engineering staffing companies based in the United Kingdom

Name: Prompt engineering staffing companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 398 companies tracked

RevenueBase identified 398 prompt engineering staffing companies headquartered in the United Kingdom as of September 2026 and tracks 5,311 professional contacts across them, including 1,587 with verified work emails. London is the largest hub.

This list covers prompt engineering staffing companies headquartered in the 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

398Companies

5,311Contacts tracked

1,587Verified emails

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The 25 largest prompt engineering staffing companies based in the United Kingdom

Ranked by team size

Top 25 of 398 prompt engineering staffing companies based in the 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	Waterman Aspen	Indirect evidence	Chelmsford, United KingdomHQ checked Sep 29, 2026	501-1,000	506 contacts →
	Indirect evidence “Waterman Aspen welcomes engineers and technical specialists to make their mark on some of the biggest infrastructure projects across the UK on a secondment basis.” Source: RevenueBase Database · checked Sep 29, 2026
2	Shorterm Group	Partial evidence	Yiewsley, United KingdomHQ checked Sep 29, 2026	51-200	247 contacts →
	Partial evidence “The Shorterm Group provides specialist recruitment services and technical support for the engineering industry.” Source: RevenueBase Database · checked Sep 29, 2026
3	Harnham	Partial evidence	Wimbledon, United KingdomHQ checked Sep 29, 2026	201-500	239 contacts →
	Partial evidence “Harnham provides specialist Data and AI recruitment and staffing services, along with bespoke training solutions, across multiple industry verticals, operating in the UK, the USA…” Source: RevenueBase Database · checked Sep 29, 2026
4	Mane Contract Services	Indirect evidence	Watford, United KingdomHQ checked Sep 29, 2026	51-200	198 contacts →
	Indirect evidence “For more than 30 years, Mane has been creating opportunities that connect exceptional people with projects driving progress across the world.” Source: RevenueBase Database · checked Sep 29, 2026
5	MPI Limited	Indirect evidence	Hertford, United KingdomHQ checked Sep 29, 2026	n/a	174 contacts →
	Indirect evidence “For over 60 years, MPI has been connecting skilled people with industry, delivering recruitment, workforce solutions and project support to some of the UK's most demanding sectors.” Source: RevenueBase Database · checked Sep 29, 2026
6	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
7	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
8	SER Limited	Partial evidence	Blackburn, United KingdomHQ checked Sep 29, 2026	11-50	73 contacts →
	Partial evidence “Welcome to SER (Staffing) Ltd specialist technical recruiters Established in 2002 we work with major organisations across the World helping them source and recruit technical…” Source: RevenueBase Database · checked Sep 29, 2026
9	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
10	Employment Solutions	Partial evidence	Bury, United KingdomHQ checked Sep 29, 2026	11-50	69 contacts →
	Partial evidence “For over two decades, Employment Solutions has been matching qualified and forward-thinking candidates with some of the biggest engineering, manufacturing, and technology…” Source: RevenueBase Database · checked Sep 29, 2026
11	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
12	BIG Cloud	Indirect evidence	Manchester, United KingdomHQ checked Sep 29, 2026	n/a	63 contacts →
	Indirect evidence “Helping innovative start-ups and fast-growing Tech companies rapidly scale their AI and Machine Learning teams.” Source: RevenueBase Database · checked Sep 29, 2026
13	Tech Professionals LTD	Partial evidence	Banbury, United KingdomHQ checked Sep 29, 2026	11-50	61 contacts →
	Partial evidence “Tech Professionals ltd is a specialist technical and engineering recruitment company.” Source: RevenueBase Database · checked Sep 29, 2026
14	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
15	CG Consultants	Partial evidence	Camberley, United KingdomHQ checked Sep 29, 2026	11-50	56 contacts →
	Partial evidence “We place contract and permanent staff, across entire product life cycles, within engineering and technical roles, throughout the UK and worldwide.” Source: RevenueBase Database · checked Sep 29, 2026
16	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
17	Owen Daniels	Indirect evidence	Frimley, United KingdomHQ checked Sep 29, 2026	51-200	49 contacts →
	Indirect evidence “Powering Global STEM \| Discover the Power of a Partner.” Source: RevenueBase Database · checked Sep 29, 2026
18	Innovate	Partial evidence	Crawley, United KingdomHQ checked Sep 29, 2026	11-50	49 contacts →
	Partial evidence “Innovate is a leading, global technical staffing and resource service business, proudly recognised as the world’s highest-rated 5-star staffing solutions provider.” Source: RevenueBase Database · checked Sep 29, 2026
19	Mech Tech Professionals	Indirect evidence	Caerphilly, United KingdomHQ checked Sep 29, 2026	11-50	46 contacts →
	Indirect evidence “We empower businesses by solving one of their biggest challenges: finding the right people.” Source: RevenueBase Database · checked Sep 29, 2026
20	SAS Global Consultants	Partial evidence	Camberley, United KingdomHQ checked Sep 29, 2026	n/a	45 contacts →
	Partial evidence “SAS Global Consultants is an International Construction & Engineering Recruitment Consultancy with over 30 years combined experience in recruiting for the GCC & Asia Pacific…” Source: RevenueBase Database · checked Sep 29, 2026
21	Start People LTD	Indirect evidence	Durham/manchester, United KingdomHQ checked Sep 29, 2026	11-50	40 contacts →
	Indirect evidence “Start People is a dynamic and innovative player in the recruitment sector, dedicated to connecting talented individuals with exceptional career opportunities.” Source: RevenueBase Database · checked Sep 29, 2026
22	Maxwell Bond	Partial evidence	Manchester, United KingdomHQ checked Sep 29, 2026	11-50	37 contacts →
	Partial evidence “As a leading recruitment agency, we specialise in providing staffing solutions across various industries, including Technology, AI & Robotics, Sales & GTM, Digital, and Change &…” Source: RevenueBase Database · checked Sep 29, 2026
23	Clearfield Recruitment LTD	Indirect evidence	Ipswich, United KingdomHQ checked Sep 29, 2026	11-50	36 contacts →
	Indirect evidence “Clearfield provides freelance, permanent and temporary staff to clients in the construction and other similar markets.” Source: RevenueBase Database · checked Sep 29, 2026
24	PEMEC	Indirect evidence	Kingston Upon Hull, United KingdomHQ checked Sep 29, 2026	11-50	34 contacts →
	Indirect evidence “Specializing in meeting client needs and project requirements, delivering top-tier personnel for successful outcomes.” Source: RevenueBase Database · checked Sep 29, 2026
25	AJP Recruitment	Partial evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 29, 2026	n/a	34 contacts →
	Partial evidence “AJP Recruitment is an Award Winning UK based recruitment company operating within the Engineering sector in the UK and internationally.” 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 398 prompt engineering staffing companies based in the United Kingdom

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Prompt engineering staffing companies based in the United Kingdom at a glance

As of Sep 29, 2026

29.9%Verified-email coverage

13.3Average contacts per company

1-10Median size (employees)

33.4%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

265

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 398 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 the 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 United Kingdom 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, 1,587 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 staffing companies by metro

Prompt engineering staffing companies in London133

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 the United Kingdom?

RevenueBase identified 398 prompt engineering staffing companies headquartered in the 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?

Waterman Aspen, headquartered in Chelmsford, tops this list with the largest team on record.

Which city has the most prompt engineering staffing companies?

London leads 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 1,587 verified decision-maker contacts tracked across these 398 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.