Top Advertising Agencies in London

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Advertising Agency Hiring Guide

Need help finding the right agency? Researched by Jason Brown and edited by Tony Furnas
Explore top-rated advertising agencies and find a trustworthy partner to work with on your next project. Through quality advertising services, insights, and support, these trustworthy agencies can upgrade your digital advertising, brand awareness, SEO, content marketing strategy and more.

To help you find the best provider, we’ve created a hand-crafted list of ad agencies in London. Browse vetted customer reviews, detailed service offerings, business descriptions, awards, and portfolios to gather the information you need to make a strategic decision. Choose your next advertising agency with confidence!

UpCity offers objective, independent research and verified user reviews. We earn compensation from some providers who sign up for sponsored profiles. Learn more about our trusted providers.

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46 Provider(s)Last Updated: October 28, 2025
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Bird Marketing

London, ENG, GB See Location
5.0 | 10 reviews
Last reviewed on 11/7/2024
Bird Marketing, an acclaimed global digital marketing agency with prestigious awards, excels in delivering innovative, results-driven strategies from our hubs in London, New York, and Dubai. Our comprehensive services, backed by top ratings, ensure unparalleled digital success for our clients.
Businesses provider works with
Works with
Small, Medium, Enterprise
Provider's minimum per-project cost
Per-project minimum
$1,000 or more
Provider's minimum retainer cost
Retainer minimum
$1,500 or more, monthly
Provider updated information on 8/22/2024
Services Offered
AdvertisingSoftware DevelopmentGraphic DesignInbound MarketingContent MarketingView All Services (22)
We precision-engineer brand relevance by conducting social research to understand your consumer and educate creative and strategy.
Businesses provider works with
Works with
Small, Medium, Enterprise
Provider's minimum per-project cost
Per-project minimum
$10,000 or more
Provider's minimum retainer cost
Retainer minimum
$1,500 or more, monthly
Provider updated information on 3/23/2023
Services Offered
AdvertisingBranding
Bolder is an independent branding and communications agency, partnering with game-changers dedicated to positively shaping the future. We build brands that lead the wave of change in tech, sustainability, and social impact
Businesses provider works with
Works with
Small, Medium
Provider's minimum per-project cost
Per-project minimum
$5,000 or more
Provider's minimum retainer cost
Retainer minimum
$2,000 or more, monthly
Provider updated information on 10/18/2024
Services Offered
Advertising
We’re a custom software development company with Austin, TX roots and partnerships across the nation. From application development and enterprise architecture to full-on IT modernization, our solutions and services enable you to move faster, work better, and stand out in a shifting market.
Businesses provider works with
Works with
Small, Medium, Enterprise
Provider updated information on 1/20/2022
Services Offered
AdvertisingSoftware DevelopmentInbound MarketingDigital MarketingBlockchain DevelopmentView All Services (10)

SUM Design

London, ENG, GB See Location
We create luxury branding, marketing, creative strategy and branded content for exceptional brands.
Businesses provider works with
Works with
Small, Medium
Provider's minimum retainer cost
Retainer minimum
$2,000 or more, monthly
Provider updated information on 3/22/2022
Services Offered
AdvertisingBranding
2022 Advertising Study: 77% of Consumers Respond to B2C Ads | UpCity

UpCity leveraged Pollfish to survey 600 U.S. and Canadian consumers about their take on advertisements. We examined the advertising methods consumers trust the most, as well as their purchasing behaviors and preferences.

tviva!

London, ENG, GB See Location
Based this on a mix of keywords and then copy from the home page to ensure we hit keywords whilst still maintaining the brand voice. Tviva is a TV advert production company based in London delivering quality, cost-effective TV adverts and full campaigns. We write and film TV adverts with a unique
Businesses provider works with
Works with
Small, Medium, Enterprise
Provider's minimum per-project cost
Per-project minimum
$5,000 or more
Provider updated information on 5/23/2023
Services Offered
Advertising
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23red

London, ENG, GB See Location
23red is a purpose-driven creative agency. We develop brands and campaigns that change behaviour for the better and have a positive impact on people's lives.
Services Offered
Advertising
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AML Group

London, ENG, GB See Location
AML Group is a full-service award winning creative financial services advertising ad agency, with experience in branding, digital, and advertising London
Services Offered
Advertising
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AMS Media Group is a well-established, fully accredited, independent planning and buying agency with offices in London and Leeds.
Services Offered
Advertising
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We help ambitious brands grow through audience-age creativity, forging enduring and valuable relationships between brands and their audiences.
Services Offered
Advertising
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Independent, integrated creative agency. Specialists in Finance and Charity Marketing. Our flexible approach and structure mean we build our services around what you need, not what we want to sell.
Services Offered
Advertising
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Purposeful, progressive and pioneering. We deliver iconic brands and communications to empower our clients in the new world era.
Services Offered
AdvertisingBranding
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With over 33,000 outdoor advertising sites nationwide we find relevant, innovative ways for brands, both big and small, to reach their audience.
Services Offered
Advertising
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D T V

London, ENG, GB See Location
We use DRTV and Film to inspire people to take action for wonderful causes throughout the world.
Services Offered
Advertising
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Dentsu Inc. is a Japanese international advertising and public relations joint stock company headquartered in Tokyo.
Services Offered
Advertising
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Showing 15 of 46 Providers

Advertising Agency Hiring Guide

Researched by Jason Brown and edited by Tony Furnas
Updated August 29, 2025

What is advertising outsourcing?

Advertising outsourcing is the process of partnering with an external agency to take advantage of one or more advertising services they offer. There are as many types of advertising agencies as there are advertising services, and they each offer different expertise and abilities to meet the needs of clients and companies. 

What do advertising providers do?

Advertising agencies provide one or multiple of the following services: 

  • Research: Advertising agency services will always include a research period. This is where a partner agency learns as much as possible about your company, your brand, your vision, your goals, and your customers. They may also provide new or additional insights about target audiences, competitors, and advertising methods that they believe will be effective. 

  • Strategy: Advertising agencies often have dedicated professionals who understand advertising strategy and planning. These services will help business owners and marketing teams define their objectives, develop a strategic plan, incorporate competitive analysis and market research, and select the right mix of traditional and digital advertising channels for your specific goals. 

  • Creative: Many advertising agencies also provide creative services, such as graphic design, content creation, video production, social media management, and more. 

  • Media buying: Planning and budgeting for advertising campaigns, and securing the necessary media outlets and channels, are also often part of an advertising agency’s services. 

  • Digital marketing: Advertising agencies, especially those specializing in digital, will provide advertising services including PPC (pay-per-click) campaign management, SEO, email marketing, and other digital content creation as needed. 

  • Public relations: Some advertising agencies also provide public relations services including image management, media outreach, press releases, event planning, and crisis management as needed. 

  • Campaign analysis: Advertising agency services also include analyzing campaign performance and providing detailed, granular data on the effectiveness of each ad campaign component. 

These are just some of the key types of advertising services that a good agency partner may provide, but there may be additional services available depending on the agency that you choose to partner with. 

Types of advertising providers 

There are several different types of advertising agencies that you can outsource your projects to, and they offer a variety of services depending on the size of the agency and the needs of their clients. 

  • Full-service advertising agencies: As the name implies, a full-service agency will likely provide all of the key advertising services you can imagine. These include creating television and radio ads, print ad design and creation, online content, social media advertising and management, graphic design and videographer services, search engine optimization, and more. 

  • Digital advertising agencies: Digital agencies specialize in all of the various digital marketing and advertising options. They will most often focus on PPC advertising, SEO-focused content and website development, digital design, paid and organic search, paid and organic social media advertising, email, and CRM. 

  • Traditional media advertising: Some agencies focus exclusively on providing advertising services for one or more traditional media outlets including magazine and print advertising, billboards, postcards, pamphlets and flyers, television and radio, newspaper, and more. 

  • Social media advertising: Some digital advertising agencies provide services specifically for social media. They will be well versed in all social media platforms, understand the specifics of ad creation and scheduling for each, and provide extensive analysis of results and recommendations based on these results. 

  • Creative agencies: Creative houses specialize in the creative elements of advertising. Boutique agencies often specialize in graphic design, logo creation, visual branding, content creation, video production, and so on. 

These are the five most common types of advertising agencies you may find. There are sometimes firms that provide a combination of certain services or some additional advertising support, but these main categories give you a breakdown of the most common ones you will encounter. 

How much does outsourcing advertising cost?

As with any business process outsourcing, the total price tag for advertising outsourcing can vary depending on a number of factors. As a result, it can be difficult to completely answer the question, “how much do advertising agencies charge?” However, there are some factors that can help you understand typical charges and provide a range of expectations for an advertising agency cost. 

Factors that can affect advertising agency pricing include: 

  • Project scope: How involved is your project? How long will it run? And how big is your target audience? 

  • Services required: Do you need comprehensive advertising services, or do you have in-house personnel who will be handling specific aspects such as graphic design, media buying, etc.? 

  • Location: It costs more to advertise in big cities than it does in smaller markets, so the price of your advertising agency contract will likely reflect the “where” of your advertising project. 

Actual price ranges for different types of agencies are pretty broad and that reflects the variability in each client’s needs and campaign goals. A common rule that many small businesses follow is to spend approximately 7%-10% of your annual gross revenue on advertising. That would include your in-house team (if you have one) and your outsourcing agency, so you can use this range to calculate a rough figure for your advertising agency budget before you begin discussions with a prospective partner. 

Should I outsource advertising or do it in-house?

Many business owners prefer to handle their advertising with an in-house team. They are closer to the brand, have experience within the organization and industry, and are committed to the company goals. And this is a perfectly valid option for many companies with sufficient resources. 

However, it’s also important to consider whether you have the knowledge and resources you need in house to create the most effective, impactful advertising campaign possible. For a lot of SMBs and mid-sized companies, the answer is often “no.” 

Some key considerations that may help you decide whether to handle your advertising services in house or outsource include: 

  • Expertise: Does our in-house team have experience with all of the advertising outlets, tools, and research that we will need to achieve our goals? Are they able to perform the analysis and adjustments necessary? 

  • Time: Will they be able to devote sufficient time and energy to the advertising campaign? Or will their other duties limit their availability? 

  • Scalability: If a campaign really takes off, will our in-house personnel be able to take advantage of the momentum and scale our advertising efforts up? Will they be able to leverage new outlets or technology effectively? 

  • Results: Has our current advertising yielded the return on investment that we were hoping for? Are customers aware of our brand and products or services? Are we growing our business at the rate we set in your goals for the year? 

These considerations, among others, often lead small business owners, entrepreneurs, and startups to the same answer: partnering with a reputable advertising agency is the right choice. 

How to choose the best advertising service provider

Outsourcing your business’ advertising needs can be the best choice for many business owners. Even when you have your own advertising and marketing team in house, the benefits of partnering with an expert agency are too good to pass up. Hiring an advertising agency — whether a niche agency or  full-service advertising company — can save you time and money, and maximize the potential impact of advertising campaigns.

Reviews from existing clients, summaries of their services, and other key information are ready and waiting to help you make the best choice for your company’s needs.