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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391

Allied Media Partnership

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Allied Media Partnership is a small advertising company. They specialize in advertising, marketing strategy, branding, and media planning & buying and were established in 2003. The firm is based in London, United Kingdom.
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392

Smithfield Agency

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Smithfield Agency is a media planning and buying company founded in 2010. They are in London, United Kingdom; Manchester, United Kingdom and Twickenham, United Kingdom and have a small team. Their services include media planning & buying, pay per click, search engine optimization, advertising, and more.

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393

Lucky Generals

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Located in London, United Kingdom, Lucky Generals is an advertising company. The company offers advertising, digital strategy, marketing strategy, and social media marketing and is midsize.The company was launched in 2013.
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394

Hangar Seven

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Hangar Seven is a midsize SEO services firm. Launched in 2009, the firm is in Macclesfield, United Kingdom; London, United Kingdom; Springwell Road Leeds, United Kingdom and Conceição, Portugal. Their team provides search engine optimization, web design, advertising, ux/ui design, and more.

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395

STEEL London

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
STEEL London is a SEO services firm established in 1980. The small London, United Kingdom-based team focuses on search engine optimization, web design, advertising, ux/ui design, and more.
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396

Living Group

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Living Group is a SEO company. Established in 2004, the firm is located in London, United Kingdom. The small team provides search engine optimization, web design, advertising, ux/ui design, and more.
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397

SIS Digital

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London , United Kingdom
SIS Digital, an advertising company, is headquartered in London , United Kingdom. The small firm was launched in 2009. Their team specializes in advertising, marketing strategy, and content marketing.
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398

Jackanory

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- London, United Kingdom
Jackanory, a branding firm, is in London, United Kingdom. The company offers branding, advertising, public relations, and direct marketing and has a small team.The company was founded in 2014.
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399

Premier

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Midsize public relations agency Premier, is based in London, United Kingdom. The team focuses on public relations, content marketing, video production, advertising, and more.
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400

Blazon Agency

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- London, United Kingdom
Blazon Agency is an advertising company founded in 2015. They are based in London, United Kingdom and have a small team. Their services include advertising, digital strategy, marketing strategy, public relations, and more.

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401

INTERWEAVE

(0 Reviews)

Not yet reviewed.
- $25,000+
- 10 - 49 employees
- London, United Kingdom
Small branding company Interweave, is based in London, United Kingdom and Athina, Greece. Launched in 2013, the team offers branding, web development, advertising, ux/ui design, and more.
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402

Arthur London

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Based in London, United Kingdom, Arthur London is a branding agency. The company specializes in branding, advertising, social media marketing, and direct marketing and is small.The company was launched in 2008.
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403

Story

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Story is a PR company. They are headquartered in London, United Kingdom and have a small team. Their services include public relations, advertising, branding, content marketing, and more.
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404

BMB London

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- London, United Kingdom
BMB London is a midsize SEO agency. Launched in 2005, the team focuses on search engine optimization, web design, advertising, ux/ui design, and more. The firm is in London, United Kingdom.
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405

DOOH

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
DOOH, a SEO services firm, is in London, United Kingdom. The firm provides search engine optimization, web design, advertising, ux/ui design, and more and has a small team.The firm was founded in 2014.
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406

The Marketing Store

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- London, United Kingdom
The Marketing Store is a midsize advertising company. Located in London, United Kingdom and Paris, France, the agency was launched in 1986. Their services include advertising, branding, digital strategy, public relations, and more.
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407

Radical Company

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- Shoreditch, United Kingdom
Radical Company is a SEO services firm. Launched in 2010, the small company is in Shoreditch, United Kingdom. Their services include search engine optimization, web design, advertising, ux/ui design, and more.
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408

MediaSense

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London , United Kingdom
MediaSense, an advertising company, was launched in 2009. They are located in London , United Kingdom and have a small team. Their services include advertising, branding, digital strategy, search engine optimization, and more.
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409

BradleyDyer

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- Reigate, United Kingdom
BradleyDyer is a branding firm. The Reigate, United Kingdom-based company was founded in 1990. The small team offers branding, search engine optimization, advertising, ux/ui design, and more.
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410

Sayhello Agency

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- London, United Kingdom
Branding company Sayhello Agency is headquartered in London, United Kingdom. The firm specializes in branding, advertising, and other marketing and is small.The firm was launched in 2015.
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411

Coretium Media

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Coretium Media is an advertising company. Launched in 2009, the agency is in London, United Kingdom. The small team focuses on advertising, branding, email marketing, print design, and more.
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412

Ambition Communications

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London , United Kingdom
Ambition Communications, an advertising company, was founded in 2005. Their small team is located in London , United Kingdom and specializes in advertising, branding, search engine optimization, social media marketing, and more.
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413

Space

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Space is a London, United Kingdom-based branding company. The agency focuses on branding, content marketing, marketing strategy, and advertising and is small.The agency was founded in 2003.
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414

Seventy7

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Founded in 1977, Seventy7 is an advertising company. The agency offers advertising, branding, digital strategy, search engine optimization, and more and has a midsize team. The agency is headquartered in Manchester , United Kingdom and London, United Kingdom.
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415

whynot!

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Whynot! is a branding firm. Founded in 2003, the team focuses on branding, advertising, graphic design, public relations, and more. Their small company is located in London, United Kingdom.
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416

Infectious Media

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Infectious Media, a SEO agency, was established in 2008. The midsize team offers search engine optimization, web design, advertising, ux/ui design, and more. The company is based in London, United Kingdom and Singapore, Singapore.
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417

A&C

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- London, United Kingdom
A&C is a midsize SEO services firm. Launched in 2011, the team focuses on search engine optimization, web design, advertising, ux/ui design, and more. The firm is located in London, United Kingdom; Phoenix, Arizona and Belo Horizonte Area, Brazil.
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418

THRDS CREATIVE

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London , United Kingdom
THRDS CREATIVE is an advertising company launched in 2014. Their small team is in London , United Kingdom and provides advertising, branding, digital strategy, search engine optimization, and more.
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419

bigdog Agency

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Bigdog Agency is a branding company. Their midsize team is headquartered in London, United Kingdom; Norwich, United Kingdom; Leicester, and Coventry, United Kingdom. The company provides branding, graphic design, marketing strategy, social media marketing, and more.
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420

VCCP

(0 Reviews)

Not yet reviewed.
- $10,000+
- 250 - 999 employees
- London , United Kingdom
VCCP, a midsize advertising company, is headquartered in London , United Kingdom; Berlin, Germany and , Czech Republic. Founded in 2002, the team offers advertising, branding, digital strategy, search engine optimization, and more.
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