Search Marketing Club
Agency directory

Programmatic advertising agencies in London.

Compare programmatic advertising agencies in London reviewed by verified search marketing professionals. See their services, team size and ratings, then get in touch directly.

10 agencies · teams of 11–50 and 51–200

A
AccuraCast
No reviews yet
International search, paid media and social for brands entering new marketsLondon · 11–50 people
SEOPPCAI searchTechnical SEOInternational SEO
B
Brainlabs
No reviews yet
Independent media agency for paid media, SEO and measurementLondon · 201+ people
SEOPPCCROContentAI search
HD
Harvest Digital
No reviews yet
Independent London media agency for paid search, SEO and data-led planningLondon · 51–200 people
SEOPPCCROWeb design and developmentMarketing strategy
HM
Havas Market
No reviews yet
Performance marketing across search, Amazon, data and paid media for brandsLondon · 11–50 people
SEOPPCAI searchInternational SEOCRO
KM
KAU Media Group
No reviews yet
Full-service digital marketing in London with a performance focusLondon · 11–50 people
SEOPPCMarketing strategyPaid socialContent
MF
Media Forty Two
No reviews yet
B2B performance marketing agency for paid search, social and programmaticLondon · 11–50 people
SEOPPCContentPaid socialProgrammatic
O
Omnius
No reviews yet
B2B SEO and AI search for SaaS, fintech and AI companiesLondon · 11–50 people
SEOContentWeb design and developmentB2B SEOAI search
OL
OUT loud
No reviews yet
LGBT inclusive digital marketing for brands reaching LGBTQ+ audiencesLondon · 11–50 people
SEOPPCPaid socialProgrammatic
R
Reeyap
No reviews yet
Performance marketing agency in London for paid search, social and SEOLondon · 2–10 people
SEOPPCPaid socialProgrammatic
R
ROAST
No reviews yet
Performance agency joining organic search, AI visibility and paid mediaLondon · 51–200 people
SEOPPCTechnical SEOAI searchContent

How we rank: sponsored listings first (at most 3, always labelled), then agencies with a Verified badge, a featured listing or a listing upgrade, then by member rating and number of reviews. Paying never changes reviews or ratings.

Compare programmatic advertising agencies in London.

AgencyRatingReviewsTeamBased inSpecialisms
AccuraCast––11–50LondonSEO, PPC, AI search
Brainlabs––201+LondonSEO, PPC, CRO
Harvest Digital––51–200LondonSEO, PPC, CRO
Havas Market––11–50LondonSEO, PPC, AI search
KAU Media Group––11–50LondonSEO, PPC, Marketing strategy
Media Forty Two––11–50LondonSEO, PPC, Content
Omnius––11–50LondonSEO, Content, Web design and development
OUT loud––11–50LondonSEO, PPC, Paid social
Reeyap––2–10LondonSEO, PPC, Paid social
ROAST––51–200LondonSEO, PPC, Technical SEO
Questions

Programmatic advertising agencies in London: FAQs

How many programmatic advertising agencies in London are listed?

10 programmatic advertising agencies in London are listed on Search Marketing Club.

How big are the teams?

The most common team size is 11–50 people, with others from 51–200 people and 201+ people and 2–10 people.

What should I ask a programmatic advertising agency?

How much senior time is included? Can we meet in person for planning? Do you work across other markets?

How are agencies ranked here?

Sponsored listings come first (at most 3, always labelled). Then agencies with a Verified badge, a featured listing or a listing upgrade, then by member rating and number of reviews. Paying never changes reviews or ratings.

Are you a programmatic advertising agency?

List your agency where search marketing professionals choose partners, and collect reviews from verified members.