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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211

Stein IAS

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Established in 2013, Stein IAS is an advertising company. In London, United Kingdom; New York, New York; Stockport, United Kingdom and Manchester, United Kingdom, their midsize team provides advertising, branding, content marketing, search engine optimization, and more.
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212

HH Global

(0 Reviews)

Not yet reviewed.
- $10,000+
- 1,000 - 9,999 employees
- Fetcham, United Kingdom
Purple Agency is an advertising company. They are headquartered in Basingstoke, United Kingdom; Reading, United Kingdom; London, United Kingdom and Guildford, United Kingdom and have a midsize team. The firm provides advertising, branding, content marketing, search engine optimization, and more.
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213

Ignite Hospitality

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Ignite Hospitality, an advertising company, was launched in 2001. They are headquartered in London, United Kingdom and have a small team. Their services include advertising, branding, content marketing, search engine optimization, and more.
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214

Verb Brands

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Verb Brands is an advertising company. Based in London, United Kingdom, their small team provides advertising, branding, content marketing, search engine optimization, and more. The agency was launched in 2011.
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215

Consider Creative

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Advertising company Consider Creative is in London, United Kingdom. The small agency was founded in 2003. Their team offers advertising, branding, content marketing, search engine optimization, and more.
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216

AMS Media Group

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- Kings Cross, United Kingdom
AMS Media Group is an advertising company founded in 1975. They are in Kings Cross, United Kingdom and have a midsize team. The firm specializes in advertising, branding, content marketing, search engine optimization, and more.
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217

MMP Global

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- London, United Kingdom
MMP Global is a midsize London, United Kingdom-based advertising company. The team offers advertising, branding, content marketing, search engine optimization, and more.
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218

Phipps

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Phipps is a London, United Kingdom-based advertising company. The small company was established in 1987. Their services include advertising, branding, content marketing, search engine optimization, and more.
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219

Studio Black Tomato

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Studio Black Tomato, an advertising company, is based in London, United Kingdom. The small team specializes in advertising, branding, content marketing, search engine optimization, and more and was established in 2005.
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220

Spinnaker

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Spinnaker is an advertising company launched in 2004. Their small team is in London, United Kingdom. The firm focuses on advertising, branding, content marketing, search engine optimization, and more.
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221

Purple Creative

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Launched in 1993, Purple Creative is an advertising company. The small team specializes in advertising, branding, content marketing, search engine optimization, and more. The firm is in London, United Kingdom.
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222

Rapier

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Rapier, a midsize advertising company, is in London, United Kingdom. Established in 1988, the team offers advertising, branding, content marketing, search engine optimization, and more.
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223

Iris

(0 Reviews)

Not yet reviewed.
- Undisclosed
- 1,000 - 9,999 employees
- London, United Kingdom
Iris, a large marketing strategy company, is in London, United Kingdom; Amsterdam, Netherlands; Atlanta , and Chicago , . They provide marketing strategy, digital strategy, advertising, content marketing, and more and were launched in 1999.

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224

M&C Saatchi London

(0 Reviews)

Not yet reviewed.
- $10,000+
- 1,000 - 9,999 employees
- London , United Kingdom
M&C Saatchi London is an advertising company. They offer advertising, branding, content marketing, search engine optimization, and more and were founded in 1995. Their large team is based in London , United Kingdom; , China; , Australia and Los Angeles, California.
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225

Many

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Many is a small advertising company. Established in 2013, the company is based in London, United Kingdom and Bournemouth, United Kingdom. Their team specializes in advertising, digital strategy, pay per click, social media marketing, and more.
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226

Pure Media

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Located in London, United Kingdom, Pure Media is an advertising company. The agency offers advertising, branding, content marketing, search engine optimization, and more and is small.The agency was established in 2001.
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227

Bloom

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Founded in 2001, Bloom is a midsize advertising company in London, United Kingdom. Their services include advertising, branding, content marketing, search engine optimization, and more.
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228

Baber Smith

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Advertising company Baber Smith was launched in 1995. They are located in London, United Kingdom and have a small team. Baber Smith focuses on advertising, branding, content marketing, search engine optimization, and more.
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229

Nonsense London

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Nonsense London is a small advertising company. Located in London, United Kingdom, the agency was established in 2007. Their services include advertising, ux/ui design, branding, social media marketing, and more.
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230

JBP

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Founded in 1984, JBP is an advertising company. The midsize London, United Kingdom-based team specializes in advertising, branding, content marketing, search engine optimization, and more.
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231

PS London

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
PS London is a branding firm in London, United Kingdom. They specialize in branding, graphic design, advertising, content marketing, and more and were established in 2007.
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232

Deep LLP

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Advertising company Deep LLP is located in London, United Kingdom. The small company was founded in 1997. Their services include advertising, branding, search engine optimization, web design, and more.
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233

Dalziel and Pow

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- London , United Kingdom
Dalziel and Pow, an advertising company, was founded in 1983. Their midsize team is in London , United Kingdom. The firm provides advertising, branding, content marketing, search engine optimization, and more.
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234

The Cabinet

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London , United Kingdom
The Cabinet is a London , United Kingdom-based advertising company. The small firm was founded in 2013. Their services include advertising, branding, content marketing, search engine optimization, and more.
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235

APS Group

(0 Reviews)

Not yet reviewed.
- $50,000+
- 250 - 999 employees
- London, United Kingdom
APS Group is a print design company. They are based in Stockport, United Kingdom; London, United Kingdom; Edinburgh, United Kingdom and Zaandam, Netherlands and have a midsize team. Their services include print design, direct marketing, advertising, branding, and more. The company was founded in 1961.

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236

Friend

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London , United Kingdom
Friend is an advertising company. Their small team is located in London , United Kingdom. The firm provides advertising, branding, content marketing, public relations, and more.
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237

Capture

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Capture is an advertising company founded in 2008. They are based in London, United Kingdom and have a small team. Their services include advertising, branding, content marketing, search engine optimization, and more.
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238

Soul

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
SEO agency Soul is in London, United Kingdom. They provide search engine optimization, web design, advertising, ux/ui design, and more and were founded in 2012.
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239

Innermedia

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- Potters Bar , United Kingdom
Launched in 2000, Innermedia is a small SEO services firm. Their services include search engine optimization, web design, advertising, ux/ui design, and more. The agency is located in Potters Bar , United Kingdom.
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240

Earnest

(0 Reviews)

Not yet reviewed.
- $100,000+
- 50 - 249 employees
- Fitzrovia, United Kingdom
Located in Fitzrovia, United Kingdom, Earnest is a SEO company. They focus on search engine optimization, web design, advertising, ux/ui design, and more and were established in 2009.
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