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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271

WDMP

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London , United Kingdom
WDMP is a small SEO services firm founded in 2002. Their services include search engine optimization, web design, advertising, ux/ui design, and more. The company is in London , United Kingdom.
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272

Citypress

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- London , United Kingdom
SEO agency Citypress was launched in 1964. They are in Manchester, ; Birmingham, United Kingdom; London , United Kingdom and Edinburgh , United Kingdom and have a midsize team. Citypress focuses on search engine optimization, web design, advertising, ux/ui design, and more.
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273

december 19

(0 Reviews)

Not yet reviewed.
- Undisclosed
- 10 - 49 employees
- London , United Kingdom
Advertising and media planning & buying company December 19 is headquartered in London , United Kingdom. The small agency was launched in 2010. Their team focuses on advertising and media planning & buying.
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274

BURN

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- Richmond, United Kingdom
Advertising company BURN was launched in 2005. The small team offers advertising, branding, digital strategy, CRM consulting and SI, and more. The agency is located in Richmond, United Kingdom and London, United Kingdom.
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275

Iceni

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London , United Kingdom
Small SEO services firm Iceni, is in London , United Kingdom and Burton-on-Trent, United Kingdom. They provide search engine optimization, web design, advertising, ux/ui design, and more and were launched in 2001.
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276

Cedar Communications

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Founded in 1973, Cedar Communications is a SEO services firm. The company specializes in search engine optimization, web design, advertising, ux/ui design, and more and has a midsize team. The company is located in London, United Kingdom; Hong Kong, Hong Kong; Madrid, Spain and Brighton, United Kingdom.
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277

K4 Creative

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- Holland Park , United Kingdom
K4 Creative is a SEO services firm. Their small team is in Holland Park , United Kingdom and focuses on search engine optimization, web design, advertising, ux/ui design, and more. The company was established in 1994.
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278

St Luke's Communications Ltd

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Located in London, United Kingdom, St Luke's Communications Ltd is an advertising and marketing strategy company. The small company was launched in 1995. Their services include advertising and marketing strategy.
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279

iThinkMedia

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- Cole Green, United Kingdom
IThinkMedia is a SEO company. Their small team is based in Cole Green, United Kingdom and specializes in search engine optimization, marketing strategy, pay per click, advertising, and more. The agency was founded in 2008.
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280

Avenue Digital

(0 Reviews)

Not yet reviewed.
- $5,000+
- 10 - 49 employees
- London, United Kingdom
Avenue Digital is a SEO services firm launched in 2014. Their small team is headquartered in London, United Kingdom; Sevenoaks, United Kingdom and Manchester, United Kingdom and provides search engine optimization, web design, advertising, ux/ui design, and more.
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281

Mother

(0 Reviews)

Not yet reviewed.
- $10,000+
- 1,000 - 9,999 employees
- London, United Kingdom
Mother is a large London, United Kingdom-based SEO agency. The team offers search engine optimization, web design, advertising, ux/ui design, and more.

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282

Dock9

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London , United Kingdom
Dock9, a small SEO company, is in London , United Kingdom. They specialize in search engine optimization, web design, advertising, ux/ui design, and more and were established in 2008.
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283

MN2S

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
MN2S, a SEO company, was founded in 1995. They are headquartered in London, 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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284

weareseventeen

(0 Reviews)

Not yet reviewed.
- $25,000+
- 10 - 49 employees
- London, United Kingdom
Located in London, United Kingdom, weareseventeen is a SEO agency. The agency offers search engine optimization, web design, advertising, ux/ui design, and more and is small.The agency was launched in 2005.
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285

The Cogency

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- London, United Kingdom
Media planning and buying agency The Cogency is located in London, United Kingdom. The small firm was founded in 1999. Their services include media planning & buying, marketing strategy, advertising, and social media marketing.
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286

Spectrecom Films

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Spectrecom Films is a SEO agency. Their midsize team is located in London, United Kingdom; Bromley, United Kingdom and Kingston upon Thames, United Kingdom. The agency focuses on search engine optimization, web design, advertising, ux/ui design, and more. The agency was launched in 1993.
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287

Total Media Group Ltd

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Established in 1982, Total Media Group Ltd is a SEO services firm. The midsize team focuses on search engine optimization, web design, advertising, ux/ui design, and more. The company is based in London, United Kingdom.
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288

Digital Dialog

(0 Reviews)

Not yet reviewed.
- $10,000+
- 2 - 9 employees
- London, United Kingdom
Digital Dialog is an advertising company launched in 2011. The small team specializes in advertising, content marketing, digital strategy, email marketing, and more. The firm is in London, United Kingdom.
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289

Snack Media

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London , United Kingdom
Snack Media is a SEO company established in 2007. The small team provides search engine optimization, web design, advertising, ux/ui design, and more. The firm is headquartered in London , United Kingdom.
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290

Four Communications

(0 Reviews)

Not yet reviewed.
- Undisclosed
- 250 - 999 employees
- London, United Kingdom
Four Communications, a SEO company, is headquartered in London, United Kingdom. The midsize team specializes in search engine optimization, web design, advertising, ux/ui design, and more. The company was founded in 2001.
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291

Pitch Marketing Group

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Pitch Marketing Group is a small SEO agency. Launched in 2002, the agency is based in London, United Kingdom. Their team provides search engine optimization, web design, advertising, ux/ui design, and more.
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292

We Are Lotus

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Founded in 2007, We Are Lotus is a SEO services firm. Their small team is based in London, United Kingdom and offers search engine optimization, web design, advertising, ux/ui design, and more.
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293

Design Portfolio

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- London , United Kingdom
Design Portfolio is a midsize SEO company. Founded in 1991, the team provides search engine optimization, web design, advertising, ux/ui design, and more. The agency is located in London , United Kingdom and Leeds, United Kingdom.
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294

Brandlective Communications

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London Bridge, United Kingdom
Brandlective Communications is a small SEO company founded in 2011. Their team provides search engine optimization, web design, advertising, ux/ui design, and more. The agency is in London Bridge, United Kingdom.
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295

DesignStudio

(0 Reviews)

Not yet reviewed.
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Located in London, United Kingdom and San Francisco, California, DesignStudio is a SEO company. The midsize team offers search engine optimization, web design, advertising, ux/ui design, and more and was founded in 2009.
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296

Kameleon

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Kameleon is a small SEO services firm. They focus on search engine optimization, web design, advertising, ux/ui design, and more and were launched in 2008.
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297

Maple Forest Marketing

(0 Reviews)

Not yet reviewed.
- $5,000+
- 2 - 9 employees
- London, United Kingdom
Advertising company Maple Forest Marketing is based in London, United Kingdom. The company focuses on advertising, other digital marketing, pay per click, and social media marketing and is small.The company was launched in 2009.
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298

HIROLA Group

(0 Reviews)

Not yet reviewed.
- Undisclosed
- 10 - 49 employees
- London, United Kingdom
HIROLA Group is a SEO company launched in 2012. Their small team is in London, United Kingdom. Their services include search engine optimization, web design, advertising, ux/ui design, and more.
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299

Copeland and Charrington Ltd

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London , United Kingdom
Copeland and Charrington Ltd is a media planning & buying company in London , United Kingdom. The small agency was launched in 1978. Their services include media planning & buying, advertising, video production, direct marketing, and more.
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300

Carrot Communications Ltd.

(0 Reviews)

Not yet reviewed.
- $10,000+
- 10 - 49 employees
- London , United Kingdom
SEO services firm Carrot Communications Ltd. Was established in 2000. They are based in London , 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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