Company lists · Data refreshed October 2026

Top 17 Building services companies based in Portsmouth, United Kingdom

Name: Building services companies based in Portsmouth, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 9, 2026 31 companies tracked

RevenueBase identified 31 company matches for building services companies associated with Portsmouth, United Kingdom as of October 2026 and tracks 306 professional contacts across them, including 168 with verified work emails. Across the United Kingdom, London is the largest hub for this category (954 companies); Portsmouth has 31.

This list covers company matches for building services companies associated with Portsmouth, United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 9, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 9, 2026 How this list was built

31Companies

306Contacts tracked

168Verified emails

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

The 17 largest building services companies based in Portsmouth, United Kingdom

Ranked by team size

Top 17 of 31 company matches for building services companies based in Portsmouth, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Mountjoy	Exact match	Portsmouth, United KingdomHQ recorded Oct 9, 2026	201-500	124 contacts →
	Exact match “Mountjoy provides professional and high quality construction, refurbishment, building maintenance and facilities management services.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2	PMC Construction And Development Services Limited	Exact match	Portsmouth, United KingdomHQ recorded Oct 9, 2026	201-500	24 contacts →
	Exact match “We are an innovative construction company who specialise in providing sustainable developments.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3	Industrial Maintenance Services LTD	Exact match	Portsmouth, United KingdomHQ recorded Oct 9, 2026	51-200	24 contacts →
	Exact match “IMS specialise in the maintenance of production equipment and associated infrastructure.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4	CDM Contractors LTD	Exact match	Portsmouth, United KingdomHQ recorded Oct 9, 2026	51-200	22 contacts →
	Exact match “Services Offered: Project Management Facilities Management Carpentry Ceilings / Partitions Mechanical & Electrical servicing & Installations Dry Lining Plastering General Building…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5	Equity Cleaning Services Limited	Exact match	Portsmouth, United KingdomHQ recorded Oct 9, 2026	51-200	13 contacts →
	Exact match “EQUITY CLEANING SERVICES LIMITED is a facilities services company based out of UNIT 10 ACORN BUSINESS PARK NORTHARBOUR ROAD, PORTSMOUTH, HAMPSHIRE, United Kingdom.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6	ITD Consultants LTD	Exact match	Portsmouth, United KingdomHQ recorded Oct 9, 2026	11-50	12 contacts →
	Exact match “ITD Consultants Ltd are a Portsmouth based building services consultancy, we offer full mechanical and electrical engineering services consultancy to property developers…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7	Citrus Facilities Management	Exact match	Portsmouth, United KingdomHQ recorded Oct 9, 2026	501-1,000	8 contacts →
	Exact match “At Citrus uk we work with our customers Supplying Manned Services like Security, Cleaning & Maintenance to create feel-good environments across the UK.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8	The Complete Property Group South LTD	Exact match	Portsmouth, United KingdomHQ recorded Oct 9, 2026	11-50	8 contacts →
	Exact match “We take care of every aspect of our clients maintenance & building services needs, within the residential & commercial property sector.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9	Clameg Design & Build LTD	Exact match	Portsmouth, United KingdomHQ recorded Oct 9, 2026	11-50	5 contacts →
	Exact match “Clameg is a well-established construction company with over 25 years of experience, proudly serving the South Coast of England.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10	The SSH Group	Exact match	Portsmouth, United KingdomHQ recorded Oct 9, 2026	11-50	5 contacts →
	Exact match “At The SSH Group, we have been specialising in comprehensive facilities maintenance solutions for over 30 years, catering to both public and private sectors.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11	John Pounds' Community Trust LTD	Exact match	Portsmouth, United KingdomHQ recorded Oct 9, 2026	11-50	5 contacts →
	Exact match “JOHN POUNDS' COMMUNITY TRUST LTD is a facilities services company based out of THE JOHN POUNDS CENTRE 23 QUEEN STREET, PORTSMOUTH, HAMPSHIRE, United Kingdom.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
12	CGE Southern	Exact match	Portsmouth, United KingdomHQ recorded Oct 9, 2026	11-50	4 contacts →
	Exact match “CGE Southern is a commercial mechanical, gas and HVAC contractor based in Portsmouth, covering Hampshire, Dorset, Sussex, Surrey and London.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13	Adson Construction LTD	Exact match	Portsmouth, United KingdomHQ recorded Oct 9, 2026	1-10	4 contacts →
	Exact match “Adson Construction Ltd provide a range of solutions to clients.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14	Leaves Building & Maintenance Contractors Limited	Exact match	Portsmouth, United KingdomHQ recorded Oct 9, 2026	51-200	3 contacts →
	Exact match “About Us Leaves Building & Maintenance Contractors are a prominent specialist in property construction, refurbishment and maintenance across the South Coast of England.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15	ACE DOT Services LTD	Exact match	Portsmouth, United KingdomHQ recorded Oct 9, 2026	51-200	3 contacts →
	Exact match “Ace Services, your premier choice for commercial and residential cleaning solutions across the UK, invites you to discover our exceptional services and cleaning products!” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16	KCS Consulting Limited	Exact match	Portsmouth, United KingdomHQ recorded Oct 9, 2026	11-50	3 contacts →
	Exact match “KCS Consulting Limited was established in October 2010 and we are a Mechanical and Electrical Building Services Consultancy which works for the construction industry and based in…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17	Southern Window & General Cleaning Co. LTD	Exact match	Portsmouth, United KingdomHQ recorded Oct 9, 2026	1-10	2 contacts →
	Exact match “At Southern Window & General Cleaning Co Ltd, we’ve been making businesses shine since 1929!” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “building services companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 17 of 31 building services companies based in Portsmouth, United Kingdom

See the full list, filter by size, metro and specialty, and access 168 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Building services companies based in Portsmouth, United Kingdom at a glance

As of Oct 9, 2026

54.9%Verified-email coverage

9.9Average contacts per company

11-50Median size (employees)

Oct 9, 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 Portsmouth, so it is reported there. Company counts and contact totals on this page are exact for Portsmouth, over 31 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Portsmouth, United Kingdom whose business descriptions match “building services companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 168 professional contacts with verified work emails across the full matched dataset. 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 October 9, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Building services companies by metro in the United Kingdom

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “building services companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many building services companies are there based in Portsmouth, United Kingdom?

RevenueBase identified 31 company matches for building services companies associated with Portsmouth, United Kingdom as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Mountjoy tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United Kingdom has the most building services companies?

London leads the United Kingdom with 954 company records, followed by Birmingham (100) and Manchester (94). Portsmouth has 31.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 168 professional contacts with verified work emails tracked across these 31 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 9, 2026.

Ready to reach these companies? Verified emails and direct dials for all 31 building services companies based in Portsmouth, United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Building services companies by geography

Browse the directory

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 SmartSearch, 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.