Company lists · Data refreshed September 2026
Top 13 Open source software support companies based in the United Kingdom
RevenueBase identified 52 company matches for open source software support companies associated with the United Kingdom as of September 2026 and tracks 323 professional contacts across them, including 116 with verified work emails and 39 with mobile numbers. London is the largest hub.
This list covers company matches for open source software support companies associated with the 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 September 5, 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.
The 13 largest open source software support companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 122 contacts → | ||||
Exact match “Collabora is a global consultancy specializing in delivering the benefits of Open Source software to the commercial world.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 2 | 67 contacts → | ||||
Exact match “Support Revolution provides 3rd party Oracle and SAP Software Support & Maintenance and help to save customers up to 90% on what they currently pay.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 3 | 6 contacts → | ||||
Exact match “We pride ourselves on being able to give straight forward answers to often very technical questions in a down to earth way, that can be understood by anyone.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 4 | 5 contacts → | ||||
Exact match “Devito Codes Ltd is the commercial arm of the open-source platform Devito.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 5 | 5 contacts → | ||||
Exact match “Sirius Corporation Ltd is an information technology and services company based out of THE COLUMBIA CENTRE STATION ROAD, BRACKNELL, United Kingdom.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 6 | 4 contacts → | ||||
Exact match “Open source services, development, consultancy, and analysis around research, education, and libraries.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 7 | 4 contacts → | ||||
Exact match “DATACRYPTION is a technical consulting, software development and products company” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 8 | 2 contacts → | ||||
Exact match “Transitiv Technologies: Business Critical Open Source Support & Services.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 9 | 1 contacts → | ||||
Exact match “GITC Pro provides PostgreSQL and Open Source services and support in UK.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 10 | 1 contacts → | ||||
Exact match “Providers of affordable IT support, consultancy & development services for businesses.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 11 | 1 contacts → | ||||
Exact match “We bring knowledge and capability to every stage of your software development journey.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 12 | 1 contacts → | ||||
Exact match “TECNICK.COM LTD is an Open Source Software development company.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 13 | 1 contacts → | ||||
Exact match “Wave2 Limited was founded back in with the intention of providing custom solutions for small businesses.” Recorded in the RevenueBase company graph · Sep 5, 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 “open source software support 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 13 of 52 open source software support companies based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 116 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Open source software support companies based in the United Kingdom at a glance
As of Sep 5, 2026Companies by employee count
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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 the United Kingdom whose business descriptions match “open source software support 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 116 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 September 5, 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.
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 “open source software support companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many open source software support companies are there based in the United Kingdom?
RevenueBase identified 52 company matches for open source software support companies associated with the United Kingdom as of September 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?
Collabora tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most open source software support companies?
London leads with 15 company records, followed by Bracknell (2) and Cambridge (2).
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 116 professional contacts with verified work emails tracked across these 52 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 September 5, 2026.
Ready to reach these companies? Verified emails and direct dials for all 52 open source software support companies based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Open source software support companies by geography
- Open source software support companies based in the United States
- Open source software support companies based in France
- Open source software support companies based in Spain
- Open source software support companies based in Brazil
- Open source software support companies based in Germany
- Open source software support companies based in Italy
- Open source software support companies based in the Netherlands
- Open source software support companies based in Canada
- Open source software support companies based in Argentina
- Open source software support companies based in Belgium
- Open source software support companies based in India
- Open source software support companies based in Türkiye
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Open source software support companies based in the United States
- Open source software support companies based in France
- Open source software support companies based in Spain
- Open source software support companies based in Brazil
- Open source software support companies based in Germany
- Open source software support companies based in Italy
Company intelligence · public preview
Top 13 open source software support companies based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 52 matching company records for open source software support companies based in the United Kingdom, with 323 tracked contacts and 116 verified work emails.
This public preview shows 13 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 5, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 13 open source software support companies based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Collaboracollabora.comHQ: Cambridge, United KingdomReported employees: 51-200 | Cambridge, United Kingdom | 51-200 | Exact match | 122 contacts → |
“Collabora is a global consultancy specializing in delivering the benefits of Open Source software to the commercial world.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Support Revolutionsupportrevolution.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 67 contacts → |
“Support Revolution provides 3rd party Oracle and SAP Software Support & Maintenance and help to save customers up to 90% on what they currently pay.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  1stcs.It 1st Group LTD1stcs.itHQ: Fareham, United KingdomReported employees: 1-10 | Fareham, United Kingdom | 1-10 | Exact match | 6 contacts → |
“We pride ourselves on being able to give straight forward answers to often very technical questions in a down to earth way, that can be understood by anyone.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Devito Codesdevitocodes.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“Devito Codes Ltd is the commercial arm of the open-source platform Devito.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Sirius Corporation LTDsiriusopensource.comHQ: Bracknell, United KingdomReported employees: 11-50 | Bracknell, United Kingdom | 11-50 | Exact match | 5 contacts → |
“Sirius Corporation Ltd is an information technology and services company based out of THE COLUMBIA CENTRE STATION ROAD, BRACKNELL, United Kingdom.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Cottage Labscottagelabs.comHQ: Remote, United KingdomReported employees: 1-10 | Remote, United Kingdom | 1-10 | Exact match | 4 contacts → |
“Open source services, development, consultancy, and analysis around research, education, and libraries.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Datacryption LTDdatacryption.orgHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 4 contacts → |
“DATACRYPTION is a technical consulting, software development and products company” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Transitiv Technologies LTDtransitiv.co.ukHQ: Wolverhampton, United KingdomReported employees: 1-10 | Wolverhampton, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Transitiv Technologies: Business Critical Open Source Support & Services.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Gitc PRO Limitedgitcpro.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 1 contacts → |
“GITC Pro provides PostgreSQL and Open Source services and support in UK.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Network Management Solutions LTDnetmansol.co.ukHQ: Barnsley, United KingdomReported employees: 1-10 | Barnsley, United Kingdom | 1-10 | Exact match | 1 contacts → |
“Providers of affordable IT support, consultancy & development services for businesses.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Levelup Group Limitedlvl-up.ukHQ: Enfield, United KingdomReported employees: 1-10 | Enfield, United Kingdom | 1-10 | Exact match | 1 contacts → |
“We bring knowledge and capability to every stage of your software development journey.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Tecnick.com LTDtecnick.comHQ: Reading, United KingdomReported employees: 1-10 | Reading, United Kingdom | 1-10 | Exact match | 1 contacts → |
“TECNICK.COM LTD is an Open Source Software development company.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Wave2 Limitedwave2.orgHQ: Braintree, United KingdomReported employees: 1-10 | Braintree, United Kingdom | 1-10 | Exact match | 1 contacts → |
“Wave2 Limited was founded back in with the intention of providing custom solutions for small businesses.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 13 of 52 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
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Open source software support companies: dataset insights
September 5, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
51 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 5, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for open source software support companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many open source software support companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 52 matching company records, 323 tracked contacts and 116 verified emails. The public preview displays 13 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 5, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Open source software support companies by geography
- Open source software support companies based in the United States
- Open source software support companies based in France
- Open source software support companies based in Spain
- Open source software support companies based in Brazil
- Open source software support companies based in Germany
- Open source software support companies based in Italy
- Open source software support companies based in the Netherlands
- Open source software support companies based in Canada
- Open source software support companies based in Argentina
- Open source software support companies based in Belgium
- Open source software support companies based in India
- Open source software support companies based in Türkiye
Cite this list
RevenueBase Data Team. Top 13 open source software support companies based in the United Kingdom. Snapshot: September 5, 2026. https://revenuebase.ai/companies/open-source-software-support-companies/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Open source software support companies based in the United States
- Open source software support companies based in France
- Open source software support companies based in Spain
- Open source software support companies based in Brazil
- Open source software support companies based in Germany
- Open source software support companies based in Italy
Company intelligence · public preview
Top 13 open source software support companies based in the United Kingdom
RevenueBase records 52 matching company records for open source software support companies based in the United Kingdom, with 323 tracked contacts and 116 verified work emails.
This public preview shows 13 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 5, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 13 open source software support companies based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Collaboracollabora.com HQ: Cambridge, United KingdomReported employees: 51-200 | Cambridge, United Kingdom | 51-200 | Exact match | 122 contacts → |
“Collabora is a global consultancy specializing in delivering the benefits of Open Source software to the commercial world.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Support Revolutionsupportrevolution.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 67 contacts → |
“Support Revolution provides 3rd party Oracle and SAP Software Support & Maintenance and help to save customers up to 90% on what they currently pay.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 1stcs.It 1st Group LTD1stcs.it HQ: Fareham, United KingdomReported employees: 1-10 | Fareham, United Kingdom | 1-10 | Exact match | 6 contacts → |
“We pride ourselves on being able to give straight forward answers to often very technical questions in a down to earth way, that can be understood by anyone.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Devito Codesdevitocodes.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“Devito Codes Ltd is the commercial arm of the open-source platform Devito.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Sirius Corporation LTDsiriusopensource.com HQ: Bracknell, United KingdomReported employees: 11-50 | Bracknell, United Kingdom | 11-50 | Exact match | 5 contacts → |
“Sirius Corporation Ltd is an information technology and services company based out of THE COLUMBIA CENTRE STATION ROAD, BRACKNELL, United Kingdom.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Cottage Labscottagelabs.com HQ: Remote, United KingdomReported employees: 1-10 | Remote, United Kingdom | 1-10 | Exact match | 4 contacts → |
“Open source services, development, consultancy, and analysis around research, education, and libraries.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Datacryption LTDdatacryption.org HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 4 contacts → |
“DATACRYPTION is a technical consulting, software development and products company” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Transitiv Technologies LTDtransitiv.co.uk HQ: Wolverhampton, United KingdomReported employees: 1-10 | Wolverhampton, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Transitiv Technologies: Business Critical Open Source Support & Services.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Gitc PRO Limitedgitcpro.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 1 contacts → |
“GITC Pro provides PostgreSQL and Open Source services and support in UK.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Network Management Solutions LTDnetmansol.co.uk HQ: Barnsley, United KingdomReported employees: 1-10 | Barnsley, United Kingdom | 1-10 | Exact match | 1 contacts → |
“Providers of affordable IT support, consultancy & development services for businesses.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Levelup Group Limitedlvl-up.uk HQ: Enfield, United KingdomReported employees: 1-10 | Enfield, United Kingdom | 1-10 | Exact match | 1 contacts → |
“We bring knowledge and capability to every stage of your software development journey.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Tecnick.com LTDtecnick.com HQ: Reading, United KingdomReported employees: 1-10 | Reading, United Kingdom | 1-10 | Exact match | 1 contacts → |
“TECNICK.COM LTD is an Open Source Software development company.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Wave2 Limitedwave2.org HQ: Braintree, United KingdomReported employees: 1-10 | Braintree, United Kingdom | 1-10 | Exact match | 1 contacts → |
“Wave2 Limited was founded back in with the intention of providing custom solutions for small businesses.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 13 of 52 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Open source software support companies: dataset insights
September 5, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
51 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 5, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for open source software support companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many open source software support companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 52 matching company records, 323 tracked contacts and 116 verified emails. The public preview displays 13 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 5, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Open source software support companies by geography
- Open source software support companies based in the United States
- Open source software support companies based in France
- Open source software support companies based in Spain
- Open source software support companies based in Brazil
- Open source software support companies based in Germany
- Open source software support companies based in Italy
- Open source software support companies based in the Netherlands
- Open source software support companies based in Canada
- Open source software support companies based in Argentina
- Open source software support companies based in Belgium
- Open source software support companies based in India
- Open source software support companies based in Türkiye
Cite this list
RevenueBase Data Team. Top 13 open source software support companies based in the United Kingdom. Snapshot: September 5, 2026. https://revenuebase.ai/companies/open-source-software-support-companies/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Open source software support companies based in the United States
- Open source software support companies based in France
- Open source software support companies based in Spain
- Open source software support companies based in Brazil
- Open source software support companies based in Germany
- Open source software support companies based in Italy