Top 25 London Advertising Agencies for Business Branding and Marketing

25 Most Popular Advertising Agencies in London


The Highest Valued and trusted Advertising Companies in London (UK) for Business Branding.


If you are looking for a reliable ad agency located in London, then we suggest you take a look at the top 10 most popular advertising agencies list we prepared for you.

Marketing and advertising is the backbone of any types of businesses today. Most of the businesses hire and outsource their advertising and branding needs to a reliable marketing company.

And, If you are a small business owner and can’t afford the big budgets required to spend on such top notch ad agencies, then you must visit this post to know how and where to outsource your business marketing work.


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What are The 10 Front runner Advertising Agencies in London for Branding


List of the Biggest Ad Agencies in London


Most Popular and Trusted Advertising Companies in London ( UK ) for 2023.

Advertising Agencies in London- Find out what are Top 10 Popular Companies for Businesses in London, UK. Hire Best Local Ad agencies for Branding, marketing & Promotion.



List of Top Advertising Agencies in London for Branding and Marketing




#16. Leo Burnett London

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Leo Burnett is the British branch of an American-based worldwide advertising agency. And not just any branch but the biggest one abroad.


Leo Burnett: London’s top ad agency for branding and goal setting


There is a good reason for this as they really give their best in establishing brands in powerful yet innovative ways. Kellogg and McDonalds are on the list of their most reputable clients and they brag how one of the campaigns they did for NSPCC (British Children Charity) made the Parliament change law.

Despite that, they’re not that known for controversy when it comes to their style and maybe that’s what’s brought them among the most popular advertising agencies in the UK.



#17. St Luke’s Ad Agency London

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St Luke’s tried to make a revolution in the business in the 1990s. They implemented a system without hierarchy, where all employees were equal, in shareholding and the offices alike. However, this has proved to be a bit too Utopian, so they needed to revamp the system in the previous decade.


Saintlukes-stlukes-co-uk-best-advertising-firm-london-600x300 Saintlukes -one of the best advertising agency for London

Despite the changes they were going through, St Luke’s remained a top 10 completely independent ad agency that has more than enough ability to create a powerful campaign for you.

A positive working environment ensures that they will reach these goals, which is why they tend to keep it at a high level with creative bonuses for their employees and strict working time.



#18. WCRS: Integrated Marketing and Advertising Agency in London

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This is not strictly an ad agency but rather a creative agency that offers a wide range of services. It is a part of the Engine Group, also based in London, which is exactly what enables WCRS to extend its product portfolio.

They state the importance of understanding today’s fast-paced life, where people can easily turn attention away from the things they don’t like or they think they don’t matter.

This is why they give their best to come up with something people will care about. Their ability to provide a big array of different services brought them some very reputable clients, such as Sky, King, B&Q, and Churchill.



#19. BMB London

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Next on the list of the advertising agencies in London that we think are worth your time is BMB. It was formed by a couple of outcasts from TBWA in 2005 with the goal of using creativity to solve any kind of problem their clients might have.

Three years later, a Korean company related to Samsung gained almost half of the shareholding. However, they continued to provide brilliant ideas that help to shape the future.

Regardless of the size of the work they were hired for, BMB staff always makes sure to follow 3 basic principles – populism, generosity, and candor.



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This has been one of the top 10 advertising agencies in London for a long time, so it doesn’t come as a surprise that it made the list. Although Abbott Mead Vickers (AMV) exists for decades, it has been a part of the famous BBDO agency network since 1998.

AMV is the agency that first implemented other businesses besides advertising in their portfolio in the 1980s, a trend that other companies would soon follow.

Today, AMV sticks to the same principles – shape your solution in accordance with clients’ requests and make sure you earn their loyalty over and over again.



#21. Krow Communications

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Next ad agency we present to you is Krow Communications. They have been battling their way to the top 10 agencies over a decade. When they were founded in 2005, they’ve had some struggling times. This is what Krow founders claim made them never to forget the kind of leap of faith any client needs to make when he trusts them with any job.

At Krow Communications, they believe that thinking backward is the way to go. This is why they start with the precise definition of the ideal outcome and work their way back towards the idea.


#22. Saatchi & Saatchi

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“Nothing is impossible”, claims one of the most renowned British advertising agencies that surely deserves a place on our list. Founded in 1970, their motto didn’t change with the years, which secured them some very important clients such as T-Mobile, Visa, and British Airways.

Saatchi & Saatchi ad agency is stationed in London but has 130 offices in more than 60 countries.

They are a part of one of the world’s most known communications groups, PublicisGroupe.



#23. Havas Media

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Havas Media located in London is a part of a much bigger worldwide Havas Group and definitely merits a top 10 spot. You might remember them as Euro RSCG Global Network, which was their name until 2012.

Despite that change, they kept focusing on meaningful brands that can form a connection with people.Havas Media claims they are the only ad agency that has a rather big data consultancy department. Putting consumers as the top priority is what they always do. Their most reputable clients include BBC, PayPal and Gatwick Airport.



#24. Karmarama

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Up until recently, Karmarama was one of the top independent advertising agencies in the UK. In November 2016, they were acquired by Accenture Interactive but claim that they will still hold on to their principle that good karma is what good works are founded on.Karmarama is famous for hosting an annual open ping-pong tournament and other numerous ideas that improve working environment. This certainly works, as their list of clients is long and includes Honda, BBC, Unilever, and Just Eat.


#25. Mullen Lowe London

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Mullen Lowe ad agency is the last but not least from our top 10 London-based agencies. They firmly believe in populism and proudly say that their goal is to attract people to give an unfair share of attention to their brands. They achieve this by creating the right mix of various talent among their staff.

The most notable clients of Mullen Love include Bank of England, Seat, Domestos, and Signal. They are also founders of a global think tank called Frank About Women (FAW) with a mission to better understand how to communicate to women via marketing messages.




This concludes our list of the top 10 most popular agencies based in London. We hope that this article will help you make your choice and select the ad agency that is most tailored to your needs.


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