10 Best SEO Agencies in London

Compare ten London SEO agencies offering technical SEO, content, and digital PR. Find the right partner for your website’s search goals, project scope, and budget.

1. Found

Best for: Businesses considering SEO that combines technical work, content and digital PR. Found describes campaigns that bring together technical expertise, customer-focused content and authority-building digital PR. Its listed services also include local SEO and visibility across traditional and AI-driven search. The official contact page lists its London office at the Johnson Building, Johnson Gardens, 77 Hatton Garden, London EC1N 8JS. Ask which parts of this mix suit your goals, what the work would include and who would deliver it. Request a quote.

2. Go Up

Best for: Businesses looking for a tailored SEO programme that begins with research and an audit. Go Up describes campaigns built around data-driven strategies, website audits and keyword research. Its service information says the work is intended to improve search visibility and attract high-value organic traffic. The official contact page lists its office at 20 Old Street, London EC1V 9AB. Ask what the audit covers, how findings would be prioritised and how progress would be reported. Request a quote.

3. Varn

Best for: Businesses seeking SEO supported by technical expertise, digital PR, content and analytics. Varn lists these capabilities as part of its SEO offering. Its London service page describes work for businesses in the city, including technical optimisation and organic search growth. The contact page lists a London office at Fox Court, 14 Gray’s Inn Road, London WC1X 8HN. If you are considering several services together, ask how they would fit into one scope and which activities would take priority. Request a quote.

4. Webheads

Best for: Businesses considering SEO alongside content or web-development capability. Webheads offers SEO strategy, technical SEO, on-page and local SEO, digital PR and performance measurement. Its service page describes a London team that combines search recommendations with content and web-development capability. The official contact page lists its London office at 18 Soho Square, London W1D 3QL. Ask which capabilities would be included, who would handle them and how performance would be measured. Check that the proposed scope matches the work you need. Request a quote.

5. SEO Sherpa

Best for: Businesses looking for an SEO-focused provider with a stated London presence. SEO Sherpa describes professional SEO services focused on improving organic search visibility, traffic and leads. Its London page outlines its UK SEO work and identifies a London office. The listed UK headquarters is Broadgate Tower, 20 Primrose Street, London EC2A 2EW. The supplied research does not detail a wider range of specific SEO services, so ask what the work would cover, who would deliver it and how progress toward your goals would be reported. Request a quote.

6. Bird Marketing

Best for: Businesses seeking SEO services ranging from audits and optimisation to local search and link building. Bird Marketing lists SEO strategy, technical SEO, on-page SEO, local SEO, audits and link building among its services. Its London SEO page describes services for the local market and lists an office at 13 Austin Friars, London EC2N 2HE. Ask which activities are relevant to your site, how priorities would be set and what the engagement would include. Check that the scope reflects your business and target locations. Request a quote.

7. First Place SEO

Best for: Businesses comparing local SEO with broader organic-search and technical work. First Place SEO provides organic and local SEO, technical optimisation, content and link-building services. Its service pages describe support for London businesses and local search visibility across London areas. The official contact page lists its London address as International House, 4 Maddox Street, London W1S 1QP. Ask how the proposed work would address your target locations and technical needs, and what content or link-building activity it would include. Confirm who would be available to work on the account. Request a quote.

8. Terrier Agency

Best for: Businesses seeking technical SEO and content optimisation for local and national search. Terrier Agency describes strategies that include technical optimisation and content for both types of search. Its London page lists two offices: 8 Lee Street, Hackney, London E8 4DY, and 7B Parkshot, Richmond, London TW9 2RD. If both local and national visibility matter to your business, ask how the strategy would balance them and what work would take priority. Check the proposed scope and team availability before deciding. Request a quote.

9. Agile Digital Agency

Best for: Professional-services businesses considering an SEO audit or local SEO approach. Agile Digital Agency offers SEO services, full-scale SEO audits and local SEO diagnostics, alongside web design and development. Its website lists a London office at 10–11 Heathfield Terrace, London W4 4JE, and describes SEO support for professional-services firms. Ask what an audit or local SEO diagnostic would cover, who would carry out the work and whether related web work fits your brief. Request a quote, as pricing is not provided in the supplied research.

10. Tug

Best for: Businesses considering SEO as part of wider digital marketing or search-marketing activity. Tug provides SEO alongside data and digital strategy, content and paid media. Its London page identifies a Shoreditch headquarters at 3rd Floor, Victoria House, 1 Leonard Circus, London EC2A 4DQ, and names SEO as a service available to London businesses. Ask how SEO would fit into the proposed scope, which services would be involved and who would deliver them. Request a quote.

How to choose an SEO agency

• Define the work you need, such as technical SEO, local visibility, content, digital PR or an audit.
• Ask each agency to explain its proposed scope, priorities, deliverables and reporting.
• Check whether its described approach suits your business type and target locations.
• Confirm who would do the work and whether the team is available for your timeframe.
• Compare proposals by what they include and how progress would be discussed.
• Verify current services and office details on the agency’s official site, then request a quote. Pricing is not stated in the supplied research.

FAQs

How should I compare SEO agency proposals?

Compare each proposal’s scope, priorities, deliverables and reporting against your goals. Ask what the agency would address first, who would do the work and how it would communicate progress.

Do these agencies have London locations?

The supplied official-site research lists London offices or headquarters for all ten. Verify current location details on each agency’s official site before arranging a visit.

Are prices listed for these agencies?

No pricing is provided in the supplied research. Request a quote directly and confirm what it covers.