What are advertising agencies?

An advertising agency is a company that’s dedicated to assisting clients research, set up, and execute target advertising campaigns. These campaigns may include print ads, social media ads, paid search advertising, television ads, and more.

How do ad agencies get paid?

Top advertising agencies may have different ways of charging clients. Some may ask for a monthly retainer for ongoing account upkeep. Additionally, some firms could request to be paid a percentage of the ROI generated through the ads they create.

How can advertising agencies help my business?

Advertising agencies can help businesses educate their customers on their products and services. With an advertising partner, businesses can create memorable, measurable, and compelling strategies or campaigns. Advertising agencies also enable businesses to increase customer reach and build better brand awareness. By investing in advertising, businesses have a greater chance of gaining an advantage over their competitors.

What kind of ROI (return on investment) should I expect when hiring an advertising agency?

Businesses should anticipate seeing a tangible return on their investment when partnering with an advertising agency if the right measures and resources are implemented. Businesses should monitor key performance indicators (KPIs) such as customer acquisition cost (CAC), revenue growth, and return on ad spend (ROAS). Typically, these metrics don’t appear instantaneously after a campaign ends but rather after a few weeks or months.

Top 100 Advertising Agencies in London

The Best of September 2024

Advertising is crucial to educating consumers and promoting products or services. You can generate interest and give deeper insights into your brand if done correctly.

Jump to Most Reviewed Companies

List of the Best London Advertising Companies

Featured provider
- SmartSites
  (258 Reviews) 4.9
  - Timeliness
    4.9
  - Service Excellence
    4.9
  - Value
    4.8
  - Would Recommend
    4.9
  - $1,000+
  - 250 - 999 employees
  - Paramus, NJ
  SmartSites is a full-service digital agency located in Paramus, N.J. Founded in 2011, SmartSites has a team of nearly 100 designers, writers, developers, marketers, and problem solvers who work tirelessly to make websites successful. SmartSites offers its clients creative ways to build, plan, and promote their website. They focus on web design, PPC marketing, and organic SEO.
  
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1081

Pegasus

(0 Reviews)

Not yet reviewed.
- Undisclosed
- 50 - 249 employees
- Brighton, England
Pegasus is a PR company. They are headquartered in Brighton, United Kingdom and have a midsize team. Their services include public relations, advertising, branding, and market research.
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1082

Oban International

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- Brighton, England
Small SEO company Oban International, is located in Brighton, United Kingdom. They specialize in search engine optimization, web design, advertising, ux/ui design, and more and were founded in 2002.
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1083

Holdsworth PR

(0 Reviews)

Not yet reviewed.
- $10,000+
- Freelancer employees
- Washington, Pulborough, England
Marketing strategy company Holdsworth PR was launched in 2000. The agency provides marketing strategy, public relations, social media marketing, advertising, and more and has a small team.
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1084

Incentivesmart Ltd

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- Milton Keynes, England
Incentivesmart Ltd is a Milton Keynes, United Kingdom-based advertising company. The small team offers advertising, branding, public relations, search engine optimization, and more and was launched in 1999.
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1085

Bucks Creative Ltd

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- Bletchley, England
Bucks Creative Ltd is a small SEO company. In Bletchley, United Kingdom, the agency was founded in 2014. Their team provides search engine optimization, web design, advertising, ux/ui design, and more.
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1086

Propellernet

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- Brighton , England
SEO agency Propellernet was established in 2003. Their midsize team is headquartered in Brighton , United Kingdom. Propellernet provides search engine optimization, web design, advertising, ux/ui design, and more.
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1087

2g Ltd

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- Newton, England
Located in Newton, United Kingdom, 2g Ltd is a small SEO services firm. The team offers search engine optimization, web design, advertising, ux/ui design, and more.
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1088

Sherpa

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- Bedford , England
Based in Bedford , United Kingdom, Sherpa is a small SEO agency. They focus on search engine optimization, advertising, branding, and digital strategy and were founded in 2012.
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1089

Crisp Design

(0 Reviews)

Not yet reviewed.
- $10,000+
- Freelancer employees
- Heybridge, England
Graphic design agency Crisp Design was established in 2005. In Heybridge, United Kingdom, their small team provides graphic design, web design, advertising, branding, and more.
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1090

Indent Design Limited

(0 Reviews)

Not yet reviewed.
- Undisclosed
- 2 - 9 employees
- Reading, England
Indent Design Limited is a graphic design agency. Launched in 1975, the small agency is headquartered in Reading, United Kingdom. Their services include graphic design, logo, advertising, branding, and more.
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1091

Generate UK

(0 Reviews)

Not yet reviewed.
- Undisclosed
- 10 - 49 employees
- Thatcham, England
Generate UK is an advertising company launched in 2008. Located in Thatcham, United Kingdom, their small team offers advertising, digital strategy, email marketing, marketing strategy, and more.
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1092

Fusing Creativity

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- Wootton, England
Fusing Creativity is a SEO agency. They are in Wootton, United Kingdom and have a small team. Their services include search engine optimization, web design, advertising, ux/ui design, and more. The firm was launched in 2010.
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1093

Haych Enterprises Ltd.

(0 Reviews)

Not yet reviewed.
- $1,000+
- 2 - 9 employees
- Hove, England
Haych Enterprises Ltd. Is a marketing strategy company. They are based in Hove, United Kingdom and have a small team. Their team focuses on marketing strategy, advertising, branding, and direct marketing.
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1094

NYTA

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- Broughton, England
Founded in 2002, NYTA is a SEO services firm. Their small team is based in Broughton, United Kingdom. Their services include search engine optimization, web design, advertising, ux/ui design, and more.
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1095

Out of Sync Ltd

(0 Reviews)

Not yet reviewed.
- $1,000+
- 2 - 9 employees
- Lewes, England
Out of Sync Ltd, a video production agency, was founded in 2013. The small team focuses on video production, advertising, broadcast video, public relations, and more. The firm is headquartered in Lewes, United Kingdom.
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1096

Igentics

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- Cambridge, England
Igentics, a SEO services firm, is based in Cambridge, United Kingdom. The small agency was established in 2001. Their services include search engine optimization, web design, advertising, ux/ui design, and more.
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1097

Sampl

(0 Reviews)

Not yet reviewed.
- Undisclosed
- 10 - 49 employees
- Brighton and Hove, England
Advertising company Sampl was founded in 2020. Their small team is based in Brighton and Hove, United Kingdom. Sampl specializes in advertising, market research, social media marketing, and other digital marketing.
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1098

Killer Creative

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- Brighton, England
SEO services firm Killer Creative was founded in 2005. The agency provides search engine optimization, web design, advertising, ux/ui design, and more and has a small team. The agency is based in Brighton, United Kingdom.
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1099

Beige Agency

(0 Reviews)

Not yet reviewed.
- $1,000+
- 10 - 49 employees
- Brighton and Hove, England
Beige Agency is a small advertising company headquartered in Brighton and Hove, United Kingdom. Launched in 2021, the team offers advertising, media planning & buying, social media marketing, branding, and more.
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1100

Write Arm

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- Brighton, England
Write Arm is a SEO agency located in Brighton, United Kingdom. The small agency was established in 2012. Their team provides search engine optimization, web design, advertising, ux/ui design, and more.
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1101

Genie Goals

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- Cambridge, England
Genie Goals is a small Cambridge, United Kingdom-based advertising company. Established in 2008, the team offers advertising, CRM consulting and SI, email marketing, pay per click, and more.
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1102

Takka Productions Ltd

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- Hove, England
Advertising company Takka Productions Ltd was launched in 2012. They are located in Hove, United Kingdom and have a small team. Their services include advertising, digital strategy, and search engine optimization.
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1103

VGroup

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- Brighton , England
VGroup is a small SEO services firm. The Brighton , United Kingdom-based firm was established in 1998. Their team offers search engine optimization, web design, advertising, ux/ui design, and more.
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1104

Future Insight Analytics

(0 Reviews)

Not yet reviewed.
- $10,000+
- Freelancer employees
- Lewes, England
Launched in 2014, Future Insight Analytics is a SEO services firm. They are in Lewes, United Kingdom and have a small team. Their services include search engine optimization, web design, advertising, ux/ui design, and more.
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1105

Reaction Visual Media

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- Bedford, England
Reaction Visual Media is an advertising company launched in 2006. They are based in Bedford, United Kingdom and have a small team. Their services include advertising, branding, graphic design, packaging design, and more.
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1106

Sketch Events

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- Brighton and Hove , England
Sketch Events, a SEO agency, is located in Brighton and Hove , United Kingdom. The small team specializes in search engine optimization, advertising, digital strategy, and web design and was established in 2006.
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1107

Freestone Creative Limited

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- Stony Stratford, England
Freestone Creative Limited is an advertising company established in 1984. The small team offers advertising, branding, content marketing, search engine optimization, and more. The agency is in Stony Stratford, United Kingdom.
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1108

RSM The Agency

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- Milton Keynes, England
SEO agency RSM The Agency is headquartered in Milton Keynes, United Kingdom. The small team focuses on search engine optimization, web design, advertising, ux/ui design, and more. The agency was launched in 1997.
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1109

The Blog Ranking

(0 Reviews)

Not yet reviewed.
- $1,000+
- 2 - 9 employees
- Brighton and Hove, England
The Blog Ranking, a SEO company, is in Brighton and Hove, United Kingdom. The small firm was established in 2020. Their services include search engine optimization, advertising, and content marketing.
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1110

Insite Web Ltd

(0 Reviews)

Not yet reviewed.
- $1,000+
- 2 - 9 employees
- Newport Pagnell, England
Advertising company Insite Web Ltd was founded in 2012. The company specializes in advertising, market research, marketing strategy, conversion optimization, and more and has a small team.
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