Company lists · Data refreshed September 2026

Top 25 Systems engineering consultants based in London, United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 161 companies tracked

RevenueBase identified 161 systems engineering consultants headquartered in London, United Kingdom as of September 2026 and tracks 4,072 professional contacts across them, including 1,038 with verified work emails. London is the largest hub.

This list covers systems engineering consultants 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 18, 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 18, 2026 86% judged on-target in blind review

161Companies

4,072Contacts tracked

1,038Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest systems engineering consultants based in London, United Kingdom

Ranked by team size

Top 25 of 161 systems engineering consultants based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to systems engineering consultants: 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	Strong evidence	London, United KingdomHQ checked Sep 18, 2026	501-1,000	1,103 contacts →
	Strong evidence “We are an award-winning engineering consultancy with a creative team of engineers, designers, and technical specialists.” Source: RevenueBase Database · checked Sep 18, 2026
2	Principle ONE	Strong evidence	London, United KingdomHQ checked Sep 18, 2026	51-200	78 contacts →
	Strong evidence “Principle One provides Systems Engineering, Architecture and Business Consulting services within the Law Enforcement, National Security, Health and wider public sector.” Source: RevenueBase Database · checked Sep 18, 2026
3	Qoda Consulting	Indirect evidence	London, United KingdomHQ checked Sep 18, 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 18, 2026
4	WBD Group	Strong evidence	London, United KingdomHQ checked Sep 18, 2026	11-50	51 contacts →
	Strong evidence “WBD Group is a leading multidisciplinary engineering consultancy based in Central London.” Source: RevenueBase Database · checked Sep 18, 2026
5	VEDA	Strong evidence	London, United KingdomHQ checked Sep 18, 2026	51-200	48 contacts →
	Strong evidence “VEDA Associates is an independent, multidisciplinary engineering consultancy driven by a passion for problem solving and technical excellence.” Source: RevenueBase Database · checked Sep 18, 2026
6	Poise Group	Strong evidence	London, United KingdomHQ checked Sep 18, 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 18, 2026
7	TB Associates	Strong evidence	London, United KingdomHQ checked Sep 18, 2026	51-200	32 contacts →
	Strong evidence “TB Associates was founded in the United Kingdom in 2004 and is a research-based engineering consultancy company.” Source: RevenueBase Database · checked Sep 18, 2026
8	DSA Engineering LTD	Strong evidence	London, United KingdomHQ checked Sep 18, 2026	11-50	30 contacts →
	Strong evidence “DSA Engineering is an engineering design consultancy with extensive experience in providing innovative multi-disciplinary engineering services.” Source: RevenueBase Database · checked Sep 18, 2026
9	Navitas Engineering LTD	Strong evidence	London, United KingdomHQ checked Sep 18, 2026	11-50	27 contacts →
	Strong evidence “Navitas Engineering provides electrical engineering consultancy services to the railway and electricity supply industries.” Source: RevenueBase Database · checked Sep 18, 2026
10	Evolve Consulting Engineers	Indirect evidence	London, United KingdomHQ checked Sep 18, 2026	11-50	26 contacts →
	Indirect evidence “Evolve is a people-focused practice specialising in the structural design of buildings and associated civil works, across all sectors.” Source: RevenueBase Database · checked Sep 18, 2026
11	London Structures LAB	Indirect evidence	London, United KingdomHQ checked Sep 18, 2026	11-50	25 contacts →
	Indirect evidence “London Structures Lab believe there is a way to do things better.” Source: RevenueBase Database · checked Sep 18, 2026
12	Infrastructure Design Solutions	Strong evidence	London, United KingdomHQ checked Sep 18, 2026	11-50	24 contacts →
	Strong evidence “IDS is a global ICT and security infrastructure design consultancy, specialized in structured cabling design and physical security engineering solutions that meet the highest…” Source: RevenueBase Database · checked Sep 18, 2026
13	Eltrade Electrical LTD	Partial evidence	London, United KingdomHQ checked Sep 18, 2026	1-10	23 contacts →
	Partial evidence “ELTRADE ELECTRICAL LTD is a civil engineering company” Source: RevenueBase Database · checked Sep 18, 2026
14	Aarmtech Engineering Pvt. LTD	Strong evidence	London, United KingdomHQ checked Sep 18, 2026	51-200	23 contacts →
	Strong evidence “AARMTech is one of the pioneers in the field of Telecommunication and Security system engineering consultancy services, we are leading in the industry since its inception.” Source: RevenueBase Database · checked Sep 18, 2026
15	Exsel Group	Strong evidence	London, United KingdomHQ checked Sep 18, 2026	51-200	18 contacts →
	Strong evidence “The Exsel Group is a leading independent defence technology solutions company – providing engineering solutions, technology systems and support services to Defence and Industry…” Source: RevenueBase Database · checked Sep 18, 2026
16	Constructure LTD	Partial evidence	London, United KingdomHQ checked Sep 18, 2026	11-50	18 contacts →
	Partial evidence “Our company: Constructure is a vibrant and progressive consultancy practice of structural design engineers, based in London SE1.” Source: RevenueBase Database · checked Sep 18, 2026
17	Bardenchapman Consulting Engineers	Indirect evidence	London, United KingdomHQ checked Sep 18, 2026	11-50	14 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 18, 2026
18	Lamorbey Associates	Partial evidence	London, United KingdomHQ checked Sep 18, 2026	11-50	13 contacts →
	Partial evidence “Lamorbey Associates is a practice of Consultant Building Services Engineers.” Source: RevenueBase Database · checked Sep 18, 2026
19	Michael Alexander Consulting Engineers	Indirect evidence	London, United KingdomHQ checked Sep 18, 2026	11-50	11 contacts →
	Indirect evidence “Structural & Civil Engineers Our expertise covers a wide variety of buildings, in both the public and private sectors.” Source: RevenueBase Database · checked Sep 18, 2026
20	Griffiths Evans	Indirect evidence	London, United KingdomHQ checked Sep 18, 2026	11-50	11 contacts →
	Indirect evidence “Griffiths Evans provide Mechanical, Electrical and ICT building services consulting and design for new construction and existing building refurbishment projects across a wide…” Source: RevenueBase Database · checked Sep 18, 2026
21	HDR Hurley Palmer Flatt Group	Strong evidence	London, United KingdomHQ checked Sep 18, 2026	201-500	10 contacts →
	Strong evidence “In 2019, Hurley Palmer Flatt Group, the UK’s leading independent multidisciplinary engineering consultancy, joined global design firm HDR.” Source: RevenueBase Database · checked Sep 18, 2026
22	The Anslow Partnership Consulting Engineers	Indirect evidence	London, United KingdomHQ checked Sep 18, 2026	11-50	10 contacts →
	Indirect evidence “Mechanical, Electrical and Public Health Building Services Engineers” Source: RevenueBase Database · checked Sep 18, 2026
23	Dowling Blunt	Partial evidence	London, United KingdomHQ checked Sep 18, 2026	11-50	9 contacts →
	Partial evidence “We are Building Services Consulting Engineers covering all aspects of building services including Mechanical, Public Health, Electrical, Communications and Security systems.” Source: RevenueBase Database · checked Sep 18, 2026
24	MWP - London	Strong evidence	London, United KingdomHQ checked Sep 18, 2026	51-200	9 contacts →
	Strong evidence “MWP is a multidisciplinary engineering consultancy providing a first class service to its clients since it was founded in 1967.” Source: RevenueBase Database · checked Sep 18, 2026
25	The Design Collective, London	Partial evidence	London, United KingdomHQ checked Sep 18, 2026	11-50	6 contacts →
	Partial evidence “The Design Collective is a modern and innovative M&E Consultancy.” Source: RevenueBase Database · checked Sep 18, 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: systems engineering consultants. 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 systems engineering consultants.
Partial evidence: Its own public description names part of systems engineering consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name systems engineering consultants. 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 161 systems engineering consultants based in London, United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,038 reachable decision-makers.

Free signup · no credit card

View the full list →

Systems engineering consultants based in London, United Kingdom at a glance

As of Sep 18, 2026

25.5%Verified-email coverage

25.3Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · London

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

107

11-50

51-200

201-500

501-1,000

1,001-5,000

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 161 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 systems engineering consultants, 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 “systems engineering consultants”. 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 systems engineering consultants), 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 systems engineering consultants, 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, 1,038 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 18, 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.

Systems engineering consultants by metro in the United Kingdom

Systems engineering consultants in London161
Systems engineering consultants in Bristol31
Systems engineering consultants in Manchester29

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 systems engineering consultants, 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 systems engineering consultants are there based in London, United Kingdom?

RevenueBase identified 161 systems engineering consultants 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 has the most systems engineering consultants?

London leads with 161 headquartered companies, followed by Bristol (31) and Manchester (29).

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 1,038 verified decision-maker contacts tracked across these 161 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 18, 2026.

Ready to reach these companies? Verified emails and direct dials for all 161 systems engineering consultants based in London, United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Systems engineering consultants by geography

Browse the directory

Browse: Companies home · Systems engineering consultants in United Kingdom · All United Kingdom lists · All Systems engineering consultants lists · New lists

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.