Company lists · Data refreshed September 2026

Top 14 Energy management system contractors based in Bristol, United Kingdom

RevenueBase identified 30 energy management system contractors headquartered in Bristol, United Kingdom as of September 2026 and tracks 502 professional contacts across them, including 144 with verified work emails. London is the largest hub.

This list covers energy management system contractors headquartered in Bristol, 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 16, 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 16, 2026 86% judged on-target in blind review
30Companies
502Contacts tracked
144Verified emails
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The 14 largest energy management system contractors based in Bristol, United Kingdom

Ranked by team size
Top 14 of 30 energy management system contractors based in Bristol, United Kingdom, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy management system contractors: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceBristol, United KingdomHQ checked Sep 16, 202651-200138 contacts →

Indirect evidence

“MCS Ltd are specialist building services engineers covering all aspects of commercial and industrial building services and infrastructure engineering across varying market sectors.”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceBristol, United KingdomHQ checked Sep 16, 2026201-50025 contacts →

Indirect evidence

“Sustain was acquired by Anthesis Group in 2016.”

Source: RevenueBase Database · checked Sep 16, 2026
3Partial evidenceBristol, United KingdomHQ checked Sep 16, 202611-5020 contacts →

Partial evidence

Energy and Technical Services is an expert in energy consulting and service and has been for 25th years.”

Source: RevenueBase Database · checked Sep 16, 2026
4Partial evidenceBristol, United KingdomHQ checked Sep 16, 202611-5014 contacts →

Partial evidence

“MJD is a specialist mechanical, electrical & sustainable energy company with a breadth of experience and expertise.”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceBristol, United KingdomHQ checked Sep 16, 202651-20014 contacts →

Indirect evidence

“Welcome to Fuseland, One of the South West's leading Building Services Companies.”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceBristol, United KingdomHQ checked Sep 16, 202611-5012 contacts →

Indirect evidence

“Providing mechanical and electrical turnkey solutions in addition to project based delivery alongside industry partners.”

Source: RevenueBase Database · checked Sep 16, 2026
7Partial evidenceBristol, United KingdomHQ checked Sep 16, 202611-507 contacts →

Partial evidence

“Sentient Electrical are an Electrical contractor, with our head office being in Bristol.”

Source: RevenueBase Database · checked Sep 16, 2026
8Partial evidenceBristol, United KingdomHQ checked Sep 16, 20261-105 contacts →

Partial evidence

“Citritek are experts in designing and combining innovative technologies to enable buildings and systems to run as safely and efficiently as possible.”

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidenceBristol, United KingdomHQ checked Sep 16, 20261-105 contacts →

Partial evidence

“Based Bristol, Sunlight Future Ltd install expertly designed solar power systems to residential and commercial customers throughout Bristol and the South West.”

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceBristol, United KingdomHQ checked Sep 16, 20261-105 contacts →

Indirect evidence

“We are an Electrical contracting company based in the south west (Bristol) with over 15 years experience in the industry.”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceBristol, United KingdomHQ checked Sep 16, 20261-104 contacts →

Indirect evidence

“About Self Gen Connect Ltd Self Gen Connect began with a simple observation from co-founders Shaun and Rick, long-time business partners since 1996.”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceBristol, United KingdomHQ checked Sep 16, 20261-103 contacts →

Indirect evidence

“At RYMAR Services, our commitment is to provide comprehensive engineering services encompassing electrical, HVAC, gas, and mechanical with an unwavering focus on quality…”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceBristol, United KingdomHQ checked Sep 16, 20261-103 contacts →

Partial evidence

Energy Reduction | Carbon Reduction | M&E Services”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceBristol, United KingdomHQ checked Sep 16, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026

Showing 14 of 30 energy management system contractors based in Bristol, United Kingdom

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Energy management system contractors based in Bristol, United Kingdom at a glance

As of Sep 16, 2026
28.7%Verified-email coverage
16.7Average contacts per company
11-50Median size (employees)
466.7%Largest-city concentration · London
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
14
11-50
11
51-200
3
201-500
1

Email recency for this list is measured across the whole United Kingdom list rather than for Bristol, so it is reported there. Company counts and contact totals on this page are exact for Bristol, over 30 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 energy management system contractors, 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 Bristol, United Kingdom whose own description of what they do matches “energy management system contractors”. 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 energy management system contractors), 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 energy management system contractors, and records with no verified work email. Companies headquartered outside Bristol 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, 144 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 16, 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.

Energy management system contractors 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 energy management system contractors, 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 energy management system contractors are there based in Bristol, United Kingdom?

RevenueBase identified 30 energy management system contractors headquartered in Bristol, 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?

MCS, headquartered in Bristol, tops this list with the largest team on record.

Which city has the most energy management system contractors?

London leads with 140 headquartered companies, followed by Manchester (33) and Bristol (30).

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 144 verified decision-maker contacts tracked across these 30 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 16, 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.