Company lists · Data refreshed November 2026
Top 25 Open source marketing agencies based in the United Kingdom
RevenueBase identified 4,694 company matches for open source marketing agencies associated with the United Kingdom as of November 2026 and tracks 25,699 professional contacts across them, including 5,130 with verified work emails. London is the largest hub.
This list covers company matches for open source marketing agencies 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 November 6, 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 25 largest open source marketing agencies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,989 contacts → | ||||
Exact match “Marketizon is the leader in developing innovative, multi-channel marketing technologies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 309 contacts → | ||||
Exact match “We’re Add People, a team of digital marketing professionals dedicated to helping small to medium-sized businesses grow online.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 227 contacts → | ||||
Exact match “Welcome to Go Inspire - Your Marketing Performance Partner!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 198 contacts → | ||||
Exact match “Founded in 1991, with offices in Amsterdam, Bath, Dubai and London our award-winning employee-owned company has consistently ranked as one of the UK's leading independent digital…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 129 contacts → | ||||
Exact match “Torchbox is an employee-owned digital agency and a certified B Corp.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 124 contacts → | ||||
Exact match “e intelligence is a renowned global leader in the digital marketing space.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 98 contacts → | ||||
Exact match “We're a full-service design, marketing and brand agency based in Nottingham.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 96 contacts → | ||||
Exact match “Powered by our people, our campaigns put your audience first.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 92 contacts → | ||||
Exact match “Founded in 2008, Crafted ignites growth through marketing and digital products.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 89 contacts → | ||||
Exact match “Blue 449 is the Open Source Agency.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 87 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 84 contacts → | ||||
Exact match “Head to Indicia Worldwide for our exciting new profile, packed with great content.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 80 contacts → | ||||
Exact match “Search Marketing | Content | Strategy Delivered by passionate people.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 78 contacts → | ||||
Exact match “We go beyond quick fixes, putting strategy at the heart of digital marketing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 77 contacts → | ||||
Exact match “Mind Digital Group is an independent digital company that is focused on servicing global clients and partner agencies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 76 contacts → | ||||
Exact match “Founded in 2004, 1973 Ltd is an experienced, proven marketing agency who specialise in email and automation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 74 contacts → | ||||
Exact match “We exist to transform the future of education marketing by daring to be different.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 71 contacts → | ||||
Exact match “We are search experts, storytellers and strategists – trusted by ambitious brands to deliver performance and brand marketing that fuels growth.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 69 contacts → | ||||
Exact match “Sleeping Giant Media is an award-winning digital marketing agency providing digital marketing services for businesses that wish to grow online.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 67 contacts → | ||||
Exact match “GA Agency is an award-winning digital marketing agency helping brands all over the world grow their business and revenue in the online space.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 63 contacts → | ||||
Exact match “Make is one of the UK's fastest-growing Digital Agencies, with a growing team of 50 - servicing clients including IBM, Asana, Eventbrite, Soldo, Campari, Clearpay, Disney…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 63 contacts → | ||||
Exact match “We're experts in making marketing work harder for SMEs in any sector.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 59 contacts → | ||||
Exact match “Bringing our 10+ years of experience and knowledge of digital marketing, Digitex Technologies has now become almost synonymous with SEO, social media marketing, website building…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 57 contacts → | ||||
Exact match “ProfileTree is a web design and digital marketing agency based in Belfast, delivering websites, SEO, content, video and AI services to clients across Northern Ireland, Ireland…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 56 contacts → | ||||
Exact match “At Unity Online, we exist to help businesses of all shapes and sizes achieve real success online.” Recorded in the RevenueBase company graph · Nov 6, 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 marketing agencies”. 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 25 of 4,694 open source marketing agencies based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 5,130 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Open source marketing agencies based in the United Kingdom at a glance
As of Nov 6, 2026Companies by employee count
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 4,694 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 the United Kingdom whose business descriptions match “open source marketing agencies” 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 5,130 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 November 6, 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.
Open source marketing agencies by metro
- Open source marketing agencies in London1230
- Open source marketing agencies in Manchester174
- Open source marketing agencies in Birmingham120
- Open source marketing agencies in Leeds76
- Open source marketing agencies in Glasgow54
- Open source marketing agencies in Liverpool51
- Open source marketing agencies in Bristol50
- Open source marketing agencies in Edinburgh47
- Open source marketing agencies in Nottingham44
- Open source marketing agencies in Norwich36
- Open source marketing agencies in Leicester33
- Open source marketing agencies in Sheffield32
- Open source marketing agencies in Belfast26
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 marketing agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many open source marketing agencies are there based in the United Kingdom?
RevenueBase identified 4,694 company matches for open source marketing agencies associated with the United Kingdom as of November 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?
Marketizon tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most open source marketing agencies?
London leads with 1230 company records, followed by Manchester (174) and Birmingham (120).
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 5,130 professional contacts with verified work emails tracked across these 4,694 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 November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 4,694 open source marketing agencies based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Open source marketing agencies by geography
- Open source marketing agencies based in Buenos Aires, Argentina
- Open source marketing agencies based in Adelaide, Australia
- Open source marketing agencies based in Brisbane, Australia
- Open source marketing agencies based in Gold Coast, Australia
- Open source marketing agencies based in Melbourne, Australia
- Open source marketing agencies based in Perth, Australia
- Open source marketing agencies based in Sydney, Australia
- Open source marketing agencies based in Vienna, Austria
- Open source marketing agencies based in Dhaka, Bangladesh
- Open source marketing agencies based in Belo Horizonte, Brazil
- Open source marketing agencies based in Campinas, Brazil
- Open source marketing agencies based in Curitiba, Brazil
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 marketing agencies based in Buenos Aires, Argentina
- Open source marketing agencies based in Adelaide, Australia
- Open source marketing agencies based in Brisbane, Australia
- Open source marketing agencies based in Gold Coast, Australia
- Open source marketing agencies based in Melbourne, Australia
- Open source marketing agencies based in Perth, Australia
Company intelligence · public preview
Top 25 open source marketing agencies 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 4,694 matching company records for open source marketing agencies based in the United Kingdom, with 25,699 tracked contacts and 5,130 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 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 25 open source marketing agencies 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 |  Marketizonmarketizon.comHQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 1,989 contacts → |
“Marketizon is the leader in developing innovative, multi-channel marketing technologies.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  ADD Peopleaddpeople.co.ukHQ: Altrincham, United KingdomReported employees: 201-500 | Altrincham, United Kingdom | 201-500 | Exact match | 309 contacts → |
“We’re Add People, a team of digital marketing professionals dedicated to helping small to medium-sized businesses grow online.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  GO Inspire Groupgoinspire.co.ukHQ: Leicester, United KingdomReported employees: 201-500 | Leicester, United Kingdom | 201-500 | Exact match | 227 contacts → |
“Welcome to Go Inspire - Your Marketing Performance Partner!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  BIG Groupbiggroup.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 198 contacts → |
“Founded in 1991, with offices in Amsterdam, Bath, Dubai and London our award-winning employee-owned company has consistently ranked as one of the UK's leading independent digital…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Torchboxtorchbox.comHQ: Bristol, United KingdomReported employees: 51-200 | Bristol, United Kingdom | 51-200 | Exact match | 129 contacts → |
“Torchbox is an employee-owned digital agency and a certified B Corp.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  E Intelligenceeintelligenceweb.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 124 contacts → |
“e intelligence is a renowned global leader in the digital marketing space.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Adtrakadtrak.co.ukHQ: Nottingham, United KingdomReported employees: 51-200 | Nottingham, United Kingdom | 51-200 | Exact match | 98 contacts → |
“We're a full-service design, marketing and brand agency based in Nottingham.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  The Media Peoplethemediapeople.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 96 contacts → |
“Powered by our people, our campaigns put your audience first.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Craftedcrafted.co.ukHQ: Ipswich, United KingdomReported employees: 51-200 | Ipswich, United Kingdom | 51-200 | Exact match | 92 contacts → |
“Founded in 2008, Crafted ignites growth through marketing and digital products.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Blue 449blue449.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 89 contacts → |
“Blue 449 is the Open Source Agency.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Brainsoulsbrainsouls.comHQ: Birmingham, United KingdomReported employees: 51-200 | Birmingham, United Kingdom | 51-200 | Exact match | 87 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 |  Konica Minolta Marketing Servicesindicia.konicaminolta.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 84 contacts → |
“Head to Indicia Worldwide for our exciting new profile, packed with great content.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Stickyeyesstickyeyes.comHQ: Leeds, United KingdomReported employees: 201-500 | Leeds, United Kingdom | 201-500 | Exact match | 80 contacts → |
“Search Marketing | Content | Strategy Delivered by passionate people.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  BANCbanc.digitalHQ: Manchester, United KingdomReported employees: 11-50 | Manchester, United Kingdom | 11-50 | Exact match | 78 contacts → |
“We go beyond quick fixes, putting strategy at the heart of digital marketing.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Mind Digital Groupminddigital.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 77 contacts → |
“Mind Digital Group is an independent digital company that is focused on servicing global clients and partner agencies.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  1973 LTD1973ltd.comHQ: Chalgrove, United KingdomReported employees: 11-50 | Chalgrove, United Kingdom | 11-50 | Exact match | 76 contacts → |
“Founded in 2004, 1973 Ltd is an experienced, proven marketing agency who specialise in email and automation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Education Cubed LTDeducationcubed.comHQ: Brighton, United KingdomReported employees: 51-200 | Brighton, United Kingdom | 51-200 | Exact match | 74 contacts → |
“We exist to transform the future of education marketing by daring to be different.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Propellernetpropellernet.co.ukHQ: Brighton, United KingdomReported employees: 51-200 | Brighton, United Kingdom | 51-200 | Exact match | 71 contacts → |
“We are search experts, storytellers and strategists – trusted by ambitious brands to deliver performance and brand marketing that fuels growth.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Sleeping Giant Mediasleepinggiantmedia.co.ukHQ: Folkestone, United KingdomReported employees: 51-200 | Folkestone, United Kingdom | 51-200 | Exact match | 69 contacts → |
“Sleeping Giant Media is an award-winning digital marketing agency providing digital marketing services for businesses that wish to grow online.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  GA Agencyga.agencyHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 67 contacts → |
“GA Agency is an award-winning digital marketing agency helping brands all over the world grow their business and revenue in the online space.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Make Agencymakeagency.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 63 contacts → |
“Make is one of the UK's fastest-growing Digital Agencies, with a growing team of 50 - servicing clients including IBM, Asana, Eventbrite, Soldo, Campari, Clearpay, Disney…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  TOWNtownagency.co.ukHQ: Manchester, United KingdomReported employees: Not recorded | Manchester, United Kingdom | Not recorded | Exact match | 63 contacts → |
“We're experts in making marketing work harder for SMEs in any sector.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Digitex Technologiesdigitextechnologies.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 59 contacts → |
“Bringing our 10+ years of experience and knowledge of digital marketing, Digitex Technologies has now become almost synonymous with SEO, social media marketing, website building…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Profiletreeprofiletree.comHQ: Belfast, United KingdomReported employees: 51-200 | Belfast, United Kingdom | 51-200 | Exact match | 57 contacts → |
“ProfileTree is a web design and digital marketing agency based in Belfast, delivering websites, SEO, content, video and AI services to clients across Northern Ireland, Ireland…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Unity Onlineunity.onlineHQ: Needham Market, United KingdomReported employees: 51-200 | Needham Market, United Kingdom | 51-200 | Exact match | 56 contacts → |
“At Unity Online, we exist to help businesses of all shapes and sizes achieve real success online.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 4,694 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 marketing agencies: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
4,670 records in the displayed employee bands.
24 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 4,694 companies.
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.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
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: November 6, 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 ↗
Open source marketing agencies by metro
- Open source marketing agencies in London1230
- Open source marketing agencies in Manchester174
- Open source marketing agencies in Birmingham120
- Open source marketing agencies in Leeds76
- Open source marketing agencies in Glasgow54
- Open source marketing agencies in Liverpool51
- Open source marketing agencies in Bristol50
- Open source marketing agencies in Edinburgh47
- Open source marketing agencies in Nottingham44
- Open source marketing agencies in Norwich36
- Open source marketing agencies in Leicester33
- Open source marketing agencies in Sheffield32
- Open source marketing agencies in Belfast26
Questions about this company list
What does Exact match mean for open source marketing agencies?
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 marketing agencies did RevenueBase find based in the United Kingdom?
The saved snapshot records 4,694 matching company records, 25,699 tracked contacts and 5,130 verified emails. The public preview displays 25 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: November 6, 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 marketing agencies by geography
- Open source marketing agencies based in Buenos Aires, Argentina
- Open source marketing agencies based in Adelaide, Australia
- Open source marketing agencies based in Brisbane, Australia
- Open source marketing agencies based in Gold Coast, Australia
- Open source marketing agencies based in Melbourne, Australia
- Open source marketing agencies based in Perth, Australia
- Open source marketing agencies based in Sydney, Australia
- Open source marketing agencies based in Vienna, Austria
- Open source marketing agencies based in Dhaka, Bangladesh
- Open source marketing agencies based in Belo Horizonte, Brazil
- Open source marketing agencies based in Campinas, Brazil
- Open source marketing agencies based in Curitiba, Brazil
Cite this list
RevenueBase Data Team. Top 25 open source marketing agencies based in the United Kingdom. Snapshot: November 6, 2026. https://revenuebase.ai/companies/open-source-marketing-agencies/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 marketing agencies based in Buenos Aires, Argentina
- Open source marketing agencies based in Adelaide, Australia
- Open source marketing agencies based in Brisbane, Australia
- Open source marketing agencies based in Gold Coast, Australia
- Open source marketing agencies based in Melbourne, Australia
- Open source marketing agencies based in Perth, Australia
Company intelligence · public preview
Top 25 open source marketing agencies based in the United Kingdom
RevenueBase records 4,694 matching company records for open source marketing agencies based in the United Kingdom, with 25,699 tracked contacts and 5,130 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 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 25 open source marketing agencies 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 | Marketizonmarketizon.com HQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 1,989 contacts → |
“Marketizon is the leader in developing innovative, multi-channel marketing technologies.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | ADD Peopleaddpeople.co.uk HQ: Altrincham, United KingdomReported employees: 201-500 | Altrincham, United Kingdom | 201-500 | Exact match | 309 contacts → |
“We’re Add People, a team of digital marketing professionals dedicated to helping small to medium-sized businesses grow online.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | GO Inspire Groupgoinspire.co.uk HQ: Leicester, United KingdomReported employees: 201-500 | Leicester, United Kingdom | 201-500 | Exact match | 227 contacts → |
“Welcome to Go Inspire - Your Marketing Performance Partner!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | BIG Groupbiggroup.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 198 contacts → |
“Founded in 1991, with offices in Amsterdam, Bath, Dubai and London our award-winning employee-owned company has consistently ranked as one of the UK's leading independent digital…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Torchboxtorchbox.com HQ: Bristol, United KingdomReported employees: 51-200 | Bristol, United Kingdom | 51-200 | Exact match | 129 contacts → |
“Torchbox is an employee-owned digital agency and a certified B Corp.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | E Intelligenceeintelligenceweb.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 124 contacts → |
“e intelligence is a renowned global leader in the digital marketing space.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Adtrakadtrak.co.uk HQ: Nottingham, United KingdomReported employees: 51-200 | Nottingham, United Kingdom | 51-200 | Exact match | 98 contacts → |
“We're a full-service design, marketing and brand agency based in Nottingham.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | The Media Peoplethemediapeople.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 96 contacts → |
“Powered by our people, our campaigns put your audience first.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Craftedcrafted.co.uk HQ: Ipswich, United KingdomReported employees: 51-200 | Ipswich, United Kingdom | 51-200 | Exact match | 92 contacts → |
“Founded in 2008, Crafted ignites growth through marketing and digital products.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Blue 449blue449.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 89 contacts → |
“Blue 449 is the Open Source Agency.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Brainsoulsbrainsouls.com HQ: Birmingham, United KingdomReported employees: 51-200 | Birmingham, United Kingdom | 51-200 | Exact match | 87 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 | Konica Minolta Marketing Servicesindicia.konicaminolta.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 84 contacts → |
“Head to Indicia Worldwide for our exciting new profile, packed with great content.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Stickyeyesstickyeyes.com HQ: Leeds, United KingdomReported employees: 201-500 | Leeds, United Kingdom | 201-500 | Exact match | 80 contacts → |
“Search Marketing | Content | Strategy Delivered by passionate people.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | BANCbanc.digital HQ: Manchester, United KingdomReported employees: 11-50 | Manchester, United Kingdom | 11-50 | Exact match | 78 contacts → |
“We go beyond quick fixes, putting strategy at the heart of digital marketing.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Mind Digital Groupminddigital.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 77 contacts → |
“Mind Digital Group is an independent digital company that is focused on servicing global clients and partner agencies.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | 1973 LTD1973ltd.com HQ: Chalgrove, United KingdomReported employees: 11-50 | Chalgrove, United Kingdom | 11-50 | Exact match | 76 contacts → |
“Founded in 2004, 1973 Ltd is an experienced, proven marketing agency who specialise in email and automation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Education Cubed LTDeducationcubed.com HQ: Brighton, United KingdomReported employees: 51-200 | Brighton, United Kingdom | 51-200 | Exact match | 74 contacts → |
“We exist to transform the future of education marketing by daring to be different.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Propellernetpropellernet.co.uk HQ: Brighton, United KingdomReported employees: 51-200 | Brighton, United Kingdom | 51-200 | Exact match | 71 contacts → |
“We are search experts, storytellers and strategists – trusted by ambitious brands to deliver performance and brand marketing that fuels growth.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Sleeping Giant Mediasleepinggiantmedia.co.uk HQ: Folkestone, United KingdomReported employees: 51-200 | Folkestone, United Kingdom | 51-200 | Exact match | 69 contacts → |
“Sleeping Giant Media is an award-winning digital marketing agency providing digital marketing services for businesses that wish to grow online.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | GA Agencyga.agency HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 67 contacts → |
“GA Agency is an award-winning digital marketing agency helping brands all over the world grow their business and revenue in the online space.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Make Agencymakeagency.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 63 contacts → |
“Make is one of the UK's fastest-growing Digital Agencies, with a growing team of 50 - servicing clients including IBM, Asana, Eventbrite, Soldo, Campari, Clearpay, Disney…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | TOWNtownagency.co.uk HQ: Manchester, United KingdomReported employees: Not recorded | Manchester, United Kingdom | Not recorded | Exact match | 63 contacts → |
“We're experts in making marketing work harder for SMEs in any sector.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Digitex Technologiesdigitextechnologies.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 59 contacts → |
“Bringing our 10+ years of experience and knowledge of digital marketing, Digitex Technologies has now become almost synonymous with SEO, social media marketing, website building…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Profiletreeprofiletree.com HQ: Belfast, United KingdomReported employees: 51-200 | Belfast, United Kingdom | 51-200 | Exact match | 57 contacts → |
“ProfileTree is a web design and digital marketing agency based in Belfast, delivering websites, SEO, content, video and AI services to clients across Northern Ireland, Ireland…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Unity Onlineunity.online HQ: Needham Market, United KingdomReported employees: 51-200 | Needham Market, United Kingdom | 51-200 | Exact match | 56 contacts → |
“At Unity Online, we exist to help businesses of all shapes and sizes achieve real success online.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 4,694 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 marketing agencies: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
4,670 records in the displayed employee bands.
24 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 4,694 companies.
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.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
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: November 6, 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 ↗
Open source marketing agencies by metro
- Open source marketing agencies in London1230
- Open source marketing agencies in Manchester174
- Open source marketing agencies in Birmingham120
- Open source marketing agencies in Leeds76
- Open source marketing agencies in Glasgow54
- Open source marketing agencies in Liverpool51
- Open source marketing agencies in Bristol50
- Open source marketing agencies in Edinburgh47
- Open source marketing agencies in Nottingham44
- Open source marketing agencies in Norwich36
- Open source marketing agencies in Leicester33
- Open source marketing agencies in Sheffield32
- Open source marketing agencies in Belfast26
Questions about this company list
What does Exact match mean for open source marketing agencies?
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 marketing agencies did RevenueBase find based in the United Kingdom?
The saved snapshot records 4,694 matching company records, 25,699 tracked contacts and 5,130 verified emails. The public preview displays 25 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: November 6, 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 marketing agencies by geography
- Open source marketing agencies based in Buenos Aires, Argentina
- Open source marketing agencies based in Adelaide, Australia
- Open source marketing agencies based in Brisbane, Australia
- Open source marketing agencies based in Gold Coast, Australia
- Open source marketing agencies based in Melbourne, Australia
- Open source marketing agencies based in Perth, Australia
- Open source marketing agencies based in Sydney, Australia
- Open source marketing agencies based in Vienna, Austria
- Open source marketing agencies based in Dhaka, Bangladesh
- Open source marketing agencies based in Belo Horizonte, Brazil
- Open source marketing agencies based in Campinas, Brazil
- Open source marketing agencies based in Curitiba, Brazil
Cite this list
RevenueBase Data Team. Top 25 open source marketing agencies based in the United Kingdom. Snapshot: November 6, 2026. https://revenuebase.ai/companies/open-source-marketing-agencies/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 marketing agencies based in Buenos Aires, Argentina
- Open source marketing agencies based in Adelaide, Australia
- Open source marketing agencies based in Brisbane, Australia
- Open source marketing agencies based in Gold Coast, Australia
- Open source marketing agencies based in Melbourne, Australia
- Open source marketing agencies based in Perth, Australia