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 April 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 providers
- SmartSites
  (214 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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1141

CHARLIE & LEO STUDIOS

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- Luton, United Kingdom
SEO company CHARLIE & LEO STUDIOS was established in 2012. Their small team is headquartered in Luton, United Kingdom. CHARLIE & LEO STUDIOS specializes in search engine optimization, web design, advertising, ux/ui design, and more.
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1142

Warren Creative

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- Worthing, United Kingdom
Headquartered in Worthing, United Kingdom, Warren Creative is a SEO company. The small company was launched in 2009. Their team specializes in search engine optimization, web design, advertising, ux/ui design, and more.
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1143

Playtime PR Ltd

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- Newport Pagnell, United Kingdom
Playtime PR Ltd, a SEO company, was established in 2014. Headquartered in Newport Pagnell, United Kingdom, their small team focuses on search engine optimization, web design, advertising, ux/ui design, and more.
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1144

iCatching Media

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- London, United Kingdom
ICatching Media is a small London, United Kingdom-based SEO services firm. Their services include search engine optimization, web design, advertising, ux/ui design, and more.
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1145

Mediavine

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- London, United Kingdom
Mediavine is a SEO agency. They are based in London, United Kingdom and have a small team. The firm specializes in search engine optimization, web design, advertising, ux/ui design, and more.
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1146

The Light

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- London, United Kingdom
Small SEO services firm The Light, is headquartered in London, United Kingdom. Their services include search engine optimization, web design, advertising, ux/ui design, and more.
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1147

RMP Filmmakers

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- Basingstoke, United Kingdom
RMP Filmmakers is a Basingstoke, United Kingdom-based SEO company. The company specializes in search engine optimization, web design, advertising, ux/ui design, and more and is small.The company was established in 2012.
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1148

iUVO Design

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- St Albans , United Kingdom
IUVO Design is a small SEO agency located in St Albans , United Kingdom. Their services include search engine optimization, web design, advertising, ux/ui design, and more.
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1149

Hearts and Minds

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- London , United Kingdom
Hearts and Minds is a SEO company based in London , United Kingdom. They provide search engine optimization, web design, advertising, ux/ui design, and more and were established in 2014.
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1150

Silverback Studios Ltd

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- Loxwood, United Kingdom
Silverback Studios Ltd is a SEO services firm launched in 2010. The small Loxwood, United Kingdom-based team offers search engine optimization, web design, advertising, ux/ui design, and more.
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1151

SO we create.

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- Mill End, United Kingdom
Small SEO company SO we create., is headquartered in Mill End, United Kingdom. Established in 2007, the team specializes in search engine optimization, web design, advertising, ux/ui design, and more.
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1152

Family (and friends)

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- Richmond Upon Thames, United Kingdom
Family (and friends) is a small Richmond Upon Thames, United Kingdom-based SEO agency. Launched in 2009, the team focuses on search engine optimization, web design, advertising, ux/ui design, and more.
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1153

To Market

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- London , United Kingdom
To Market is a SEO agency. They are in London , United Kingdom and have a small team. Their team offers search engine optimization, web design, advertising, ux/ui design, and more.
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1154

Create All Media Ltd

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- Sheerness, United Kingdom
Create All Media Ltd is a small SEO company in Sheerness, United Kingdom. The team offers search engine optimization, web design, advertising, ux/ui design, and more.
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1155

STV MEDIA

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- London, United Kingdom
In London, United Kingdom, STV MEDIA is a small SEO agency. Their services include search engine optimization, web design, advertising, ux/ui design, and more.
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1156

Eplatforms

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- Shoreham-By-Sea, United Kingdom
Headquartered in Shoreham-By-Sea, United Kingdom, Eplatforms is a SEO company. The small team provides search engine optimization, web design, advertising, ux/ui design, and more and was launched in 2000.
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1157

Sreencult LTD

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- London , United Kingdom
Small SEO services firm Sreencult LTD, is in London , United Kingdom. Launched in 2007, the team focuses on search engine optimization, web design, advertising, ux/ui design, and more.
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1158

Luna Studio Ltd

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- Farnham, United Kingdom
SEO agency Luna Studio Ltd is headquartered in Farnham, United Kingdom. The firm offers search engine optimization, web design, advertising, ux/ui design, and more and is small.The firm was founded in 2013.
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1159

B3 Creative

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- Richmond, United Kingdom
B3 Creative is a Richmond, United Kingdom-based SEO services firm. The small firm was founded in 2016. Their services include search engine optimization, web design, advertising, ux/ui design, and more.
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1160

TheCreativeArms

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- London, United Kingdom
TheCreativeArms is a SEO company based in London, United Kingdom. Launched in 2007, the small team offers search engine optimization, web design, advertising, ux/ui design, and more.
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1161

Digital Results

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- London, United Kingdom
Digital Results is a SEO services firm. The small London, United Kingdom-based team offers search engine optimization, web design, advertising, ux/ui design, and more. The company was founded in 2008.
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1162

Glassup and Stoski

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- Staines-upon-Thames, United Kingdom
In Staines-upon-Thames, United Kingdom, Glassup and Stoski is an advertising company. The small firm was established in 2006. Their services include advertising, branding, graphic design, and web development.
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1163

Stonefern Design

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- Midhurst, United Kingdom
Stonefern Design is a Midhurst, United Kingdom-based branding agency. They focus on branding, graphic design, print design, and advertising and were founded in 2007.
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1164

Image & Time

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- London , United Kingdom
Image & Time is an advertising company. Launched in 1999, the agency is headquartered in London , United Kingdom and , Nigeria. The small team focuses on advertising, branding, digital strategy, search engine optimization, and more.
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1165

Level Up Marketing

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- Bedford, United Kingdom
Founded in 2015, Level Up Marketing is a small SEO agency. Their team offers search engine optimization, web design, advertising, ux/ui design, and more. The agency is located in Bedford, United Kingdom.
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1166

LFM Venues & Events

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- London, United Kingdom
LFM Venues & Events is a small other design company in London, United Kingdom. Their services include other design, public relations, advertising, branding, and more.
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1167

Capeeshe

(0 Reviews)

Not yet reviewed.
- Undisclosed
- 2 - 9 employees
- LONDON, United Kingdom
Capeeshe is a small advertising company based in LONDON, United Kingdom. They offer advertising, ux/ui design, branding, email marketing, and more and were established in 2016.
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1168

Harmonypark

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Harmonypark is a small SEO company. Established in 2014, the company is headquartered in London, United Kingdom. Their team specializes in search engine optimization, web design, advertising, ux/ui design, and more.

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1169

Affinity Agency

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Affinity Agency is an advertising company established in 1987. The agency focuses on advertising, ux/ui design, mobile app development, conversion optimization, and more and has a small team.
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1170

isobel Advertising

(0 Reviews)

Not yet reviewed.
- Undisclosed
- 10 - 49 employees
- London, United Kingdom
Isobel Advertising is an advertising company headquartered in London, United Kingdom. The agency provides advertising, content marketing, digital strategy, and social media marketing and has a small team.The agency was established in 2003.
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