5 Best Advertising Agencies in London (2026)

Independently ranked by our review of ratings, reviews and reputation · How we chose

By Fenris Morrow, Expert in Professional Services · ✓ Data verified August 2026 · 8 min read

Picking an advertising agency in London ranges from a global network with decades of household-name campaigns to a small independent studio that will actually take your call. Reviews across the agencies below span 4.6 to a perfect 5, and review counts range from 60 to just over 100, so scale and specialism matter as much as the star rating.

Short answer: London Marketing Company holds a perfect 5-star rating across 105 reviews, with clients praising its Google Business Profile recovery work alongside standard marketing. For big-brand creative campaigns, Saatchi & Saatchi London (4.6, 69 reviews) is the London HQ behind national John Lewis and EE ads. Make Agency (4.9, 76 reviews) is the strongest pick for content and brand partnerships with larger clients.

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1. London Marketing Compa…
2. Make Agency
3. Iconic Digital
4. (hug)london Branding
5. Saatchi & Saatchi Lond…
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London's Top Advertising Agencies, Compared

#	Business	Rating	Reviews	Best for
1	London Marketing Company	5.0 ★	105	Full-service marketing / Google Business recovery	View ›
2	Make Agency	4.9 ★	76	Brand partnerships and content / Shoreditch	View ›
3	Iconic Digital	4.9 ★	63	Digital marketing and SEO / long track record	View ›
4	(hug)london Branding	4.9 ★	60	Branding and identity for startups	View ›
5	Saatchi & Saatchi London	4.6 ★	69	Big-brand creative campaigns	View ›

5 Best Advertising Agencies in London (2026)

The shortlist, reviewed

#1 Overall🕑 Open 6 days/wk

London Marketing Company

5.0105 Google reviews

London Marketing Company is an advertising and marketing agency based in Berkeley Square offering branding, web design and digital marketing under one roof. Clients specifically call out its work resolving Google Business Profile suspensions, a niche but high-stakes service for local businesses that depend on being found online. It works across strategy, website builds and ongoing marketing management rather than one-off campaigns.

What people praise

Perfect 5-star rating across every review on file
Clients describe measurable growth in enquiries after a website rebuild
Handled a stressful Google Business Profile suspension successfully, including recovering lost reviews
Named team members praised consistently for responsiveness

Worth knowing

Some services, like the Google Business recovery work, carry an upfront cost clients should confirm before starting

Reputation scorecardrank in London

Rating5 / 5

Review volume105 · 98th

Confidencemoderate

Recency6 weeks ago

Info completenesssite · phone · hours

Rating breakdown100% 5-star

✓ VerifiedSource: Google

Our take: The highest-rated agency on this list and a strong generalist pick, especially if your business needs help with both marketing strategy and a Google presence issue. The perfect rating rests on a moderate review base, so ask for recent client references if you want more depth.

Website +442033695050 Directions

Berkeley Square House, Berkeley Square, London W1J 6BD

#2🕑 Open 5 days/wk

Make Agency

4.976 Google reviews

Make Agency is a marketing agency in Shoreditch working on content creation, social media, brand refreshes and website builds for established brands, with client work cited including Aperol and multi-site rebuilds for larger corporate groups. Reviewers describe long-running relationships, some spanning several years, rather than one-off projects. It handles both creative and technical website integration work.

What people praise

Clients describe multi-year, ongoing partnerships rather than single projects
Named project leads praised for clear communication throughout complex rebrands
Handled technical integrations with bespoke internal systems for enterprise clients
Willing to work with smaller businesses despite handling big-name accounts

Worth knowing

Clients note it can look like a big-brand-only agency at first, though it also takes on SME work
Review volume is moderate relative to its client roster

Reputation scorecardrank in London

Rating4.9 / 5

Review volume76 · 88th

Confidenceearly

Recency6 weeks ago

Info completenesssite · phone · hours

Rating breakdown96% 5-star

✓ VerifiedSource: Google

Our take: The pick for a brand refresh or content partnership with a longer time horizon, backed by a track record with recognisable client names. Its strength is sustained relationships, not quick one-off ad buys.

Website +442035670860 Directions

Cordy House, Curtain Rd, Shoreditch, London EC2A 3BS

#3🕑 Open 5 days/wk↩ Responds to reviews

Iconic Digital

4.963 Google reviews

Iconic Digital is a digital marketing agency near Covent Garden that has operated in London for over 13 years, specialising in SEO, paid advertising, social media and marketing automation. Long-standing clients describe multi-year engagements with measurable gains in traffic and domain authority, and the agency's founder has a public profile through a podcast and book. It runs a structured, stage-based marketing plan rather than ad hoc campaign work.

What people praise

13 years operating in London, with reviewers citing multi-year client relationships
Reviewers highlight measurable traffic and lead-generation improvements
Structured marketing plan approach rather than one-off deliverables
Founder has a public track record through published content on marketing strategy

Worth knowing

One detailed review describes a difficult onboarding and strategy process on a specific engagement, which the agency responded to at length
Best suited to clients ready to commit to a structured, longer-term plan rather than a quick campaign

Reputation scorecardrank in London

Rating4.9 / 5

Review volume63 · 78th

Confidenceearly

Recency7 months ago

Info completenesssite · phone · hours

Rating breakdown95% 5-star

✓ VerifiedSource: Google

Our take: A long-established agency with real depth in SEO and paid media, though the one lower review makes clear that outcomes depend heavily on the client providing timely access and sign-off. Ask about the onboarding process up front.

Website +442071000726 Directions

7 John Adam St, London WC2N 6AA

#4🕑 Open 5 days/wk↩ Responds to reviews

(hug)london Branding

4.960 Google reviews

(hug)london Branding is an independent branding and marketing agency on Clerkenwell Road focused on brand strategy, naming, logo design and website builds, primarily for startups and growing businesses. Reviewers describe working closely with a small, named team rather than a large account structure, and several mention the agency's role in shaping a brand's core positioning before a launch. It works on both new brand creation and rebrands for existing companies.

What people praise

Reviewers consistently praise close, hands-on collaboration with a small team
Handled complex rebrands with multiple stakeholders across a project
Clients say the agency elevated their initial ideas beyond what they could do alone
Fast turnaround and responsiveness repeatedly cited

Worth knowing

Smaller team size than the bigger agencies here, which suits some clients better than others
Best fit for brand-first projects rather than large-scale media buying

Reputation scorecardrank in London

Rating4.9 / 5

Review volume60 · 73rd

Confidenceearly

Recency2 months ago

Info completenesssite · phone · hours

Rating breakdown95% 5-star

✓ VerifiedSource: Google

Our take: The strongest independent pick here if you need a brand built or refreshed from the ground up, especially for a startup that wants close, direct access to the people doing the work.

Website +442035761153 Directions

2nd Floor, Clerkenwell Rd, London EC1M 5PS

#5🕑 Open 5 days/wk

Saatchi & Saatchi London

4.669 Google reviews

Saatchi & Saatchi London is the London headquarters of the global Publicis-owned creative agency, responsible for national campaigns for clients including John Lewis, EE and the British Heart Foundation. It is a large-scale creative shop built for big-budget brand advertising rather than local business marketing, and its Chancery Lane building also houses exhibition space showcasing its work. This is the only agency on this list operating at genuinely national campaign scale.

What people praise

Global name behind widely recognised national ad campaigns
Reviewers describe an impressive, well-designed headquarters and exhibition spaces
Long, established history in UK advertising
Consistently described as a global name in the industry

Worth knowing

Built for large national and global brand budgets, not local or SME advertising
One reviewer raised a dispute over freelance payment, which the agency has not publicly addressed

Reputation scorecardrank in London

Rating4.6 / 5

Review volume69 · 83rd

Confidenceearly

Recency6 months ago

Info completenesssite · phone · hours

Rating breakdown75% 5-star

✓ VerifiedSource: Google

Our take: The name to know if you are a large brand looking for national campaign-level creative work, though it sits at a different scale and price point than every other agency on this page. Not the right fit for a local business's first marketing spend.

Website +442076365060 Directions

40 Chancery Ln, London WC2A 1JA

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How we score

Every number on this page is computed from public Google data on the date shown, not from opinion or payment. Rating is the agency’s live Google star average. Review volume is how many clients have rated them, ranked against other London advertising agencies. Confidence weighs the rating by that volume, so a strong rating built on a large review base counts for more than one built on a handful. No business can pay to change these numbers.

How much does an advertising agency cost in London? (2026)

Agency pricing varies enormously by scope, from a single branding project to an ongoing monthly retainer for SEO, paid media or campaign management. None of the agencies on this page publish flat rates, since pricing depends on project size, so the only reliable way to get a number is a direct quote.

Advertising agencies across London

These agencies are spread across central London, from Berkeley Square and Chancery Lane to Shoreditch and Clerkenwell. Searching for an advertising agency near me? Every listing below shows a live phone number and directions so you can reach the closest option and book an initial consultation.

What to ask before you hire an advertising agency

What is included in the initial scope, and what counts as a separate project?
Who will be my day-to-day contact, and how senior are they?
Can you show results from a client in a similar industry or size to mine?
Is pricing a fixed project fee, a retainer, or performance-based?
What access or sign-off do you need from me to hit the timeline?
How do you measure and report on results?

Frequently asked questions

How did you choose these advertising agencies?

We started from every advertising and marketing agency in London with a public Google presence, then ranked by rating, review volume, consistency, and recency. See How we score above.

Are these rankings paid?

No. Rankings come from the public Google data in the scorecard. A business can pay to be a Featured Partner, which adds a badge and top placement, but that never changes another business’s score or position on the underlying data.

How often is this updated?

The data carries a verified date (August 2026 on this page). We refresh listings periodically so ratings and review counts stay current.

Should a small business use a global agency like Saatchi & Saatchi?

Usually not. Global agencies are built for large national campaign budgets. Smaller businesses tend to get more attention and better value from independent agencies like (hug)london or London Marketing Company.

What is the difference between an advertising agency and a branding agency?

An advertising agency focuses on campaigns and media, getting your message in front of an audience. A branding agency, like (hug)london, focuses on your visual identity, positioning and messaging before that campaign work happens. Several agencies on this page, like London Marketing Company, do both.

The bottom line

For most local and growing businesses, London Marketing Company’s perfect rating and full-service range make it the safe starting point. If you are building a brand from scratch, (hug)london is the strongest independent specialist, and Saatchi & Saatchi is the name to know if you are operating at a genuinely national scale.

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