Company lists · Data refreshed September 2026

Top 15 Cross channel marketing agencies based in Portsmouth, United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 29 companies tracked

RevenueBase identified 29 company matches for cross channel marketing agencies associated with Portsmouth, United Kingdom as of September 2026 and tracks 226 professional contacts across them, including 77 with verified work emails. Across the United Kingdom, London is the largest hub for this category (4,480 companies); Portsmouth has 29.

This list covers company matches for cross channel marketing agencies associated with Portsmouth, 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 29, 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 29, 2026 How this list was built

29Companies

226Contacts tracked

77Verified emails

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The 15 largest cross channel marketing agencies based in Portsmouth, United Kingdom

Ranked by team size

Top 15 of 29 company matches for cross channel marketing agencies based in Portsmouth, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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	4marketing	Exact match	Portsmouth, United KingdomHQ recorded Sep 29, 2026	11-50	47 contacts →
	Exact match “4Marketing is a direct marketing agency devoted to generating new business opportunities for its clients through its focused new generation of telemarketing professionals.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	LCM	Exact match	Portsmouth, United KingdomHQ recorded Sep 29, 2026	n/a	35 contacts →
	Exact match “We’re a creative marketing agency based in Hampshire, and exist to help drive your growth through inspired communications.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Alto Marketing	Exact match	Portsmouth, United KingdomHQ recorded Sep 29, 2026	11-50	25 contacts →
	Exact match “Alto works with life science and healthcare organisations from start-ups to multi-national corporations providing communications and marketing campaigns geared to generate direct…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	ROLLO	Exact match	Portsmouth, United KingdomHQ recorded Sep 29, 2026	1-10	13 contacts →
	Exact match “rollo is an independent marketing agency based in Portsmouth.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Hewitt Matthews	Exact match	Portsmouth, United KingdomHQ recorded Sep 29, 2026	11-50	12 contacts →
	Exact match “We are a Digital Marketing Agency specialising in Paid Media & Website Services.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	Creative Clique	Exact match	Portsmouth, United KingdomHQ recorded Sep 29, 2026	1-10	11 contacts →
	Exact match “Creative Clique is a combined team of marketing strategists and creative designers that come together to deliver exceptional communication solutions.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	SWWIM	Exact match	Portsmouth, United KingdomHQ recorded Sep 29, 2026	1-10	10 contacts →
	Exact match “Swwim is a content marketing agency helping consumer brands realise the potential of social media.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	Rebellion Marketing	Exact match	Portsmouth, United KingdomHQ recorded Sep 29, 2026	1-10	4 contacts →
	Exact match “We’re a UK-wide, full-service digital marketing agency.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	YES Creative	Exact match	Portsmouth, United KingdomHQ recorded Sep 29, 2026	1-10	4 contacts →
	Exact match “We are a creative design studio specialising in creating fresh, original and exciting work that deliver results for our clients.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Phonics Digital	Exact match	Portsmouth, United KingdomHQ recorded Sep 29, 2026	1-10	3 contacts →
	Exact match “Our mission at Phonics is to remove the digital jargon and speak in a language that makes sense.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	Team Locals Media	Exact match	Portsmouth, United KingdomHQ recorded Sep 29, 2026	1-10	2 contacts →
	Exact match “Specialists in digital online marketing, social media promotion, professional photography and filmmaking, website design & built, graphic design, branding, email marketing, and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	Kwik Group	Exact match	Portsmouth, United KingdomHQ recorded Sep 29, 2026	1-10	1 contacts →
	Exact match “Kwik Group is a full-service digital marketing agency, specialising in a wide range of services - from SEO, social media marketing and website development to photography.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Echo Eighty	Exact match	Portsmouth, United KingdomHQ recorded Sep 29, 2026	1-10	1 contacts →
	Exact match “Complex campaigns delivered with simplicity.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	Organic Marketing Services LTD	Exact match	Portsmouth, United KingdomHQ recorded Sep 29, 2026	1-10	1 contacts →
	Exact match “Go Organic.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	In The BOX Marketing	Exact match	Portsmouth, United KingdomHQ recorded Sep 29, 2026	1-10	1 contacts →
	Exact match “At In The Box we believe that great marketing comes from within: there is marketing potential in your business, whether or not you’re able to make the most of it.” Recorded in the RevenueBase company graph · Sep 29, 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 “cross channel 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 15 of 29 cross channel marketing agencies based in Portsmouth, United Kingdom

See the full list, filter by size, metro and specialty, and access 77 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cross channel marketing agencies based in Portsmouth, United Kingdom at a glance

As of Sep 29, 2026

34.1%Verified-email coverage

7.8Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

Email recency for this list is measured across the whole United Kingdom list rather than for Portsmouth, so it is reported there. Company counts and contact totals on this page are exact for Portsmouth, over 29 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 Portsmouth, United Kingdom whose business descriptions match “cross channel 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 77 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 29, 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.

Cross channel 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 “cross channel marketing agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cross channel marketing agencies are there based in Portsmouth, United Kingdom?

RevenueBase identified 29 company matches for cross channel marketing agencies associated with Portsmouth, 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?

4marketing 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 cross channel marketing agencies?

London leads the United Kingdom with 4,480 company records, followed by Manchester (544) and Birmingham (320). Portsmouth has 29.

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 77 professional contacts with verified work emails tracked across these 29 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 29, 2026.

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About this data

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