Company lists · Data refreshed September 2026

Top 14 Software documentation services companies based in the United Kingdom

RevenueBase identified 41 software documentation services companies headquartered in the United Kingdom as of September 2026 and tracks 435 professional contacts across them, including 74 with verified work emails. Letchworth Garden City is the largest hub.

This list covers software documentation services 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
41Companies
435Contacts tracked
74Verified emails
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The 14 largest software documentation services companies based in the United Kingdom

Ranked by team size
Top 14 of 41 software documentation services 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 software documentation services 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceWoking, United KingdomHQ checked Sep 29, 202611-5041 contacts →

Indirect evidence

“3di has delivered outsourced technical writing, translation and localization services to global companies and technology businesses for 20 years.”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceLetchworth Garden City, United KingdomHQ checked Sep 29, 202651-20027 contacts →

Partial evidence

“Sonovision UK is a leading provider of Technical Documentation Services to clients.”

Source: RevenueBase Database · checked Sep 29, 2026
3Partial evidenceGrantham, United KingdomHQ checked Sep 29, 202651-20026 contacts →

Partial evidence

“TMS Support Solutions Ltd is a leading supplier of Integrated Logistic Support, Technical Publications, Training, Safety and Environmental Cases, Software Design, Data Management…”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceBridgwater, United KingdomHQ checked Sep 29, 202611-5014 contacts →

Indirect evidence

“A collective of likeminded individuals with diverse skill sets and a shared vision to deliver the highest quality through inspiration and collaboration.”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceGloucester, United KingdomHQ checked Sep 29, 202611-508 contacts →

Partial evidence

“We specialise in software testing, automation, data migration and ProductWriter, bringing together a unique blend of technical and industry knowledge.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceDerby, United KingdomHQ checked Sep 29, 202611-508 contacts →

Indirect evidence

“Specialists in technical authoring and illustration.”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceLetchworth Garden City, United KingdomHQ checked Sep 29, 20261-104 contacts →

Partial evidence

“We are technical writers of instruction manuals for your products, your engineering and construction projects including the full suite of handover documentation.”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceLondon, United KingdomHQ checked Sep 29, 20261-103 contacts →

Partial evidence

“Leading providers of Technical and Safety Documentation (Oil & Gas) Procedures/Manuals/Training/Method Statements/Risk Assessments OIGP/ OSHA/ ISO/ API/ EU Legislation & Standards…”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceRoyston, United KingdomHQ checked Sep 29, 202611-502 contacts →

Indirect evidence

“Welcome to Orchid Information Systems Limited.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceStoke Prior, United KingdomHQ checked Sep 29, 202611-502 contacts →

Indirect evidence

“Experts in eLearning, online help and user guides.”

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceHeaverham, United KingdomHQ checked Sep 29, 20261-102 contacts →

Partial evidence

“Linelive has been providing the full range of documentation services to the construction industry for over 35 years.”

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidenceLetchworth Garden City, United KingdomHQ checked Sep 29, 20261-101 contacts →

Partial evidence

“Software consultancy services”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceYork, United KingdomHQ checked Sep 29, 20261-101 contacts →

Indirect evidence

“Provision of O&M Manual Packages and Health and Safety Files.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceBirmingham, United KingdomHQ checked Sep 29, 20261-101 contacts →

Indirect evidence

“Bespoke Mechanical & Electrical O&M Manuals, Aftercare / Defect Tracking, Tender Submissions / Document creation services”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 14 of 41 software documentation services companies based in the United Kingdom

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Software documentation services companies based in the United Kingdom at a glance

As of Sep 29, 2026
17.0%Verified-email coverage
10.6Average contacts per company
1-10Median size (employees)
7.3%Largest-city concentration · Letchworth Garden City
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
29
11-50
9
51-200
3

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 41 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 software documentation services 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 “software documentation services 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 software documentation services 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 software documentation services 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, 74 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 software documentation services 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 software documentation services companies are there based in the United Kingdom?

RevenueBase identified 41 software documentation services 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?

3di Information Solutions LTD, headquartered in Woking, tops this list with the largest team on record.

Which city has the most software documentation services companies?

Letchworth Garden City leads with 3 headquartered companies, followed by London (3) and Poulton-Le-Fylde (2).

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 74 verified decision-maker contacts tracked across these 41 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.