Company lists · Data refreshed September 2026

Top 25 Api marketing agencies based in Leeds, United Kingdom

Name: Api marketing agencies based in Leeds, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 397 companies tracked

RevenueBase identified 397 company matches for api marketing agencies associated with Leeds, United Kingdom as of September 2026 and tracks 4,824 professional contacts across them, including 1,460 with verified work emails. Across the United Kingdom, London is the largest hub for this category (7,339 companies); Leeds has 397.

This list covers company matches for api marketing agencies associated with Leeds, 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 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built

397Companies

4,824Contacts tracked

1,460Verified emails

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The 25 largest api marketing agencies based in Leeds, United Kingdom

Ranked by team size

Top 25 of 397 company matches for api marketing agencies based in Leeds, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Uber Agency	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	n/a	811 contacts →
	Exact match “Uber means over, above more than.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	IMA	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	201-500	311 contacts →
	Exact match “IMA is a global agency with a simple purpose: to create connections people buy into, emotionally and literally.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Boutique	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	n/a	255 contacts →
	Exact match “You Grow.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Jaywing	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	501-1,000	236 contacts →
	Exact match “Jaywing Part of the Stubben Edge Group We’re an award-winning creative, media and data agency.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Ics-Digital	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	51-200	168 contacts →
	Exact match “ICS-digital is a global SEO, content, advertising, translation & digital PR agency working in over 100 languages, across over 90 markets in the most highly regulated and highly…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Connective3	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	51-200	146 contacts →
	Exact match “We are a specialist performance marketing agency, and we deliver unrivalled performance for our clients on a global scale.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	26pmx	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	51-200	116 contacts →
	Exact match “At 26PMX, we help ambitious brands turn potential into performance.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Infoserve	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	51-200	103 contacts →
	Exact match “Let’s face it, the world has become an increasingly digital place.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Stickyeyes	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	201-500	77 contacts →
	Exact match “Search Marketing \| Content \| Strategy Delivered by passionate people.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Pearson Crossland Direct LTD	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	11-50	66 contacts →
	Exact match “PCD or Pearson Crossland Direct Ltd” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Engage Interactive	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	51-200	64 contacts →
	Exact match “We’re Engage, the digital agency for those that demand attention.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Enjoy Digital	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	51-200	47 contacts →
	Exact match “Enjoy is an award-winning digital experience and performance agency helping brands transform and grow for over 17 years.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Wolfenden	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	11-50	44 contacts →
	Exact match “We're Wolfenden, an independent performance marketing agency helping ambitious brands unlock sustainable growth through organic search, authority, digital PR, paid media, data and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Wearesyn	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	11-50	43 contacts →
	Exact match “Straight talking, full of energy and totally committed to our craft.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Fantastic	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	11-50	40 contacts →
	Exact match “Fantastic Media is a full service marketing agency based in Yorkshire.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Northern Artillery	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	11-50	39 contacts →
	Exact match “We're a powerful creative production outfit of experienced digital specialists.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	ds.emotion	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	11-50	33 contacts →
	Exact match “With over 30 years experience, DS.Emotion help define and create compelling brands & highly effective marketing campaigns, which are delivered through strategically selected media…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Bolser Digital Agency	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	11-50	28 contacts →
	Exact match “Bolser is an award-winning digital agency based in Leeds.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Robot Food	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	11-50	27 contacts →
	Exact match “A brand-first creative studio with a seamless approach for ambitious brands, from the core creative idea to execution across every touchpoint.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Ascensor Digital Conversion Specialists	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	11-50	27 contacts →
	Exact match “We create digital experiences.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	ILK Agency	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	11-50	26 contacts →
	Exact match “ilk,(née Manifest) is an award-winning integrated agency specialising in all things strategy, branding, video, digital, design, PR & social.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	The Onlii	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	11-50	25 contacts →
	Exact match “The Onlii are a purpose led creative agency specialising in storytelling and experience for our partners; who live in sport, fashion and culture.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Attic Rush	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	11-50	25 contacts →
	Exact match “We are a digital-centric agency that builds brands.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Creative Marketing Services	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	11-50	25 contacts →
	Exact match “We're a Leeds based advertising, marketing and design agency with an awesome track record of delivering results over four decades.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	TALL	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	11-50	25 contacts →
	Exact match “We drive growth by reshaping what's possible for ambitious brands, like LEGO, SharkNinja and Tofoo.” Recorded in the RevenueBase company graph · Sep 28, 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 “api 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 397 api marketing agencies based in Leeds, United Kingdom

See the full list, filter by size, metro and specialty, and access 1,460 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Api marketing agencies based in Leeds, United Kingdom at a glance

As of Sep 28, 2026

30.3%Verified-email coverage

12.2Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

279

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United Kingdom list rather than for Leeds, so it is reported there. Company counts and contact totals on this page are exact for Leeds, over 397 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 Leeds, United Kingdom whose business descriptions match “api 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 1,460 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 28, 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.

Api marketing agencies by metro in the United Kingdom

Frequently asked

What is RevenueBase SmartSearch?

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

How many api marketing agencies are there based in Leeds, United Kingdom?

RevenueBase identified 397 company matches for api marketing agencies associated with Leeds, 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?

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

Which city in the United Kingdom has the most api marketing agencies?

London leads the United Kingdom with 7,339 company records, followed by Manchester (757) and Birmingham (409). Leeds has 397.

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 1,460 professional contacts with verified work emails tracked across these 397 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 28, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase 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.