Company lists · Data refreshed September 2026
Top 13 Underground advertising agencies based in the United Kingdom
RevenueBase identified 30 company matches for underground advertising agencies associated with the United Kingdom as of September 2026 and tracks 240 professional contacts across them, including 94 with verified work emails. London is the largest hub.
This list covers company matches for underground advertising 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 September 21, 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 underground advertising agencies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 129 contacts → | ||||
Exact match “BUILDHOLLYWOOD celebrates our magical cities, brimming with all sorts of people, lifestyles and culture.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 2 | 15 contacts → | ||||
Exact match “Whatever you want to call it, flyposting, wild posting, guerrilla marketing, our methods are simple: we use paper, paste and inside knowledge to create the best way to be seen on…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 3 | 12 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 4 | 11 contacts → | ||||
Exact match “FABYL is a creative production house with deep roots in music and culture.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 8 contacts → | ||||
Exact match “Guerrilla & Experiential Marketing | Pop Up Shops| Promotional Staff | Social Seeding It’s our mission at Love Creative Marketing Agency to provide our clients with bespoke face…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 6 | 7 contacts → | ||||
Exact match “In 2016, Leigh Moore set up Creative Players to fill the gap between over-stretched in-house teams and big agencies with layers of slow-moving management.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 7 | 6 contacts → | ||||
Exact match “Hidden is a counterculture multi––disciplinary creative agency based in london” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 8 | 5 contacts → | ||||
Exact match “Unbound is an independent advertising agency founded on the idea of being Unbound.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 9 | 5 contacts → | ||||
Exact match “Media Gang is a support agency for Advertising, Marketing, Event and PR Agencies.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 10 | 5 contacts → | ||||
Exact match “We’re explorers of the extraordinary, embracers of the unexpected and avoiders of average.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 11 | 4 contacts → | ||||
Exact match “We are a small creative collective that specialise in unconventional ways to communicate.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 12 | 2 contacts → | ||||
Exact match “Specialists in high impact street advertising, fly poster campaigns and guerilla marketing.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 13 | 1 contacts → | ||||
Exact match “Keyframe Creative is a creative agency that specialises in using innovative approaches to marketing, such as graphic design, animation, and social games for powerful marketing.” Recorded in the RevenueBase company graph · Sep 21, 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 “underground advertising 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 13 of 30 underground advertising agencies based in the United Kingdom
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Underground advertising agencies based in the United Kingdom at a glance
As of Sep 21, 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 30 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 “underground advertising 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 94 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 21, 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 “underground advertising agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many underground advertising agencies are there based in the United Kingdom?
RevenueBase identified 30 company matches for underground advertising agencies 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?
Buildhollywood tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most underground advertising agencies?
London leads with 19 company records, followed by Edinburgh (2) and Liverpool (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 94 professional contacts with verified work emails tracked across these 30 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 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 30 underground advertising agencies based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
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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 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
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- Lists by location
- Lists A-Z
- New lists
- Underground advertising agencies based in Brazil
- Underground advertising agencies based in France
- Underground advertising agencies based in Germany
- Underground advertising agencies based in Italy
- Underground advertising agencies based in the Netherlands
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Company intelligence · public preview
Top 13 underground advertising 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 30 matching company records for underground advertising agencies based in the United Kingdom, with 240 tracked contacts and 94 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 21, 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 underground advertising 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 | Buildhollywoodbuildhollywood.co.uk HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 129 contacts → |
“BUILDHOLLYWOOD celebrates our magical cities, brimming with all sorts of people, lifestyles and culture.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | UNCLEmanfromuncle.info HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 15 contacts → |
“Whatever you want to call it, flyposting, wild posting, guerrilla marketing, our methods are simple: we use paper, paste and inside knowledge to create the best way to be seen on…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  The Outfittheoutfituk.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 12 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 4 | FABYLfabyl.co.uk HQ: Hackney, United KingdomReported employees: 1-10 | Hackney, United Kingdom | 1-10 | Exact match | 11 contacts → |
“FABYL is a creative production house with deep roots in music and culture.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Love Creative Marketinglovecreativemarketing.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 8 contacts → |
“Guerrilla & Experiential Marketing | Pop Up Shops| Promotional Staff | Social Seeding It’s our mission at Love Creative Marketing Agency to provide our clients with bespoke face…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Creative Playerscreativeplayers.co.ukHQ: Liverpool, United KingdomReported employees: 1-10 | Liverpool, United Kingdom | 1-10 | Exact match | 7 contacts → |
“In 2016, Leigh Moore set up Creative Players to fill the gap between over-stretched in-house teams and big agencies with layers of slow-moving management.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Hidden Agencyhidden-agency.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 6 contacts → |
“Hidden is a counterculture multi––disciplinary creative agency based in london” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Unboundunbound.londonHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 5 contacts → |
“Unbound is an independent advertising agency founded on the idea of being Unbound.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Media Gangmediagang.co.uk HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“Media Gang is a support agency for Advertising, Marketing, Event and PR Agencies.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Smsw Mediasmswmedia.comHQ: Farnham, United KingdomReported employees: 11-50 | Farnham, United Kingdom | 11-50 | Exact match | 5 contacts → |
“We’re explorers of the extraordinary, embracers of the unexpected and avoiders of average.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Sideline Collectivesidelinecollective.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 4 contacts → |
“We are a small creative collective that specialise in unconventional ways to communicate.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | ONE Thousand Words Marketingotwmarketing.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 2 contacts → |
“Specialists in high impact street advertising, fly poster campaigns and guerilla marketing.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Keyframe Creativekeyframecreative.co.ukHQ: Cambridge, United KingdomReported employees: 1-10 | Cambridge, United Kingdom | 1-10 | Exact match | 1 contacts → |
“Keyframe Creative is a creative agency that specialises in using innovative approaches to marketing, such as graphic design, animation, and social games for powerful marketing.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 13 of 30 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
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Underground advertising agencies: dataset insights
September 21, 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
30 records in the displayed employee bands.
0 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 30 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: September 21, 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 underground advertising 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 underground advertising agencies did RevenueBase find based in the United Kingdom?
The saved snapshot records 30 matching company records, 240 tracked contacts and 94 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 21, 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
Underground advertising agencies by geography
- Underground advertising agencies based in Brazil
- Underground advertising agencies based in France
- Underground advertising agencies based in Germany
- Underground advertising agencies based in Italy
- Underground advertising agencies based in the Netherlands
- Underground advertising agencies based in the United States
Cite this list
RevenueBase Data Team. Top 13 underground advertising agencies based in the United Kingdom. Snapshot: September 21, 2026. https://revenuebase.ai/companies/underground-advertising-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
- Underground advertising agencies based in Brazil
- Underground advertising agencies based in France
- Underground advertising agencies based in Germany
- Underground advertising agencies based in Italy
- Underground advertising agencies based in the Netherlands
- Underground advertising agencies based in the United States
Company intelligence · public preview
Top 13 underground advertising agencies based in the United Kingdom
RevenueBase records 30 matching company records for underground advertising agencies based in the United Kingdom, with 240 tracked contacts and 94 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 21, 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 underground advertising 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 | Buildhollywoodbuildhollywood.co.uk HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 129 contacts → |
“BUILDHOLLYWOOD celebrates our magical cities, brimming with all sorts of people, lifestyles and culture.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | UNCLEmanfromuncle.info HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 15 contacts → |
“Whatever you want to call it, flyposting, wild posting, guerrilla marketing, our methods are simple: we use paper, paste and inside knowledge to create the best way to be seen on…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | The Outfittheoutfituk.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 12 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 4 | FABYLfabyl.co.uk HQ: Hackney, United KingdomReported employees: 1-10 | Hackney, United Kingdom | 1-10 | Exact match | 11 contacts → |
“FABYL is a creative production house with deep roots in music and culture.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Love Creative Marketinglovecreativemarketing.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 8 contacts → |
“Guerrilla & Experiential Marketing | Pop Up Shops| Promotional Staff | Social Seeding It’s our mission at Love Creative Marketing Agency to provide our clients with bespoke face…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Creative Playerscreativeplayers.co.uk HQ: Liverpool, United KingdomReported employees: 1-10 | Liverpool, United Kingdom | 1-10 | Exact match | 7 contacts → |
“In 2016, Leigh Moore set up Creative Players to fill the gap between over-stretched in-house teams and big agencies with layers of slow-moving management.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Hidden Agencyhidden-agency.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 6 contacts → |
“Hidden is a counterculture multi––disciplinary creative agency based in london” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Unboundunbound.london HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 5 contacts → |
“Unbound is an independent advertising agency founded on the idea of being Unbound.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Media Gangmediagang.co.uk HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“Media Gang is a support agency for Advertising, Marketing, Event and PR Agencies.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Smsw Mediasmswmedia.com HQ: Farnham, United KingdomReported employees: 11-50 | Farnham, United Kingdom | 11-50 | Exact match | 5 contacts → |
“We’re explorers of the extraordinary, embracers of the unexpected and avoiders of average.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Sideline Collectivesidelinecollective.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 4 contacts → |
“We are a small creative collective that specialise in unconventional ways to communicate.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | ONE Thousand Words Marketingotwmarketing.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 2 contacts → |
“Specialists in high impact street advertising, fly poster campaigns and guerilla marketing.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Keyframe Creativekeyframecreative.co.uk HQ: Cambridge, United KingdomReported employees: 1-10 | Cambridge, United Kingdom | 1-10 | Exact match | 1 contacts → |
“Keyframe Creative is a creative agency that specialises in using innovative approaches to marketing, such as graphic design, animation, and social games for powerful marketing.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 13 of 30 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Underground advertising agencies: dataset insights
September 21, 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
30 records in the displayed employee bands.
0 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 30 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: September 21, 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 underground advertising 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 underground advertising agencies did RevenueBase find based in the United Kingdom?
The saved snapshot records 30 matching company records, 240 tracked contacts and 94 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 21, 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
Underground advertising agencies by geography
- Underground advertising agencies based in Brazil
- Underground advertising agencies based in France
- Underground advertising agencies based in Germany
- Underground advertising agencies based in Italy
- Underground advertising agencies based in the Netherlands
- Underground advertising agencies based in the United States
Cite this list
RevenueBase Data Team. Top 13 underground advertising agencies based in the United Kingdom. Snapshot: September 21, 2026. https://revenuebase.ai/companies/underground-advertising-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
- Underground advertising agencies based in Brazil
- Underground advertising agencies based in France
- Underground advertising agencies based in Germany
- Underground advertising agencies based in Italy
- Underground advertising agencies based in the Netherlands
- Underground advertising agencies based in the United States