Comparison
9 agencies · every cell checked 9 October 2026
The best SEO agencies in London (2026), compared honestly
This page is written by an agency that appears in the table below. We say so first because none of the agency-written "best SEO agencies" lists we read on the way to writing it does. We have put ourselves in alphabetical order, in the same columns as everyone else, and left our gaps showing.
Method
Checked 9 October 2026 · corrected on request
What we checked, and what we did not
What we checked, for every agency, on 9 October 2026: the Companies House entry; the London address and phone number the agency publishes; whether a monthly price is published anywhere on the site and what the lowest one is; what the published contract terms say about minimum term and notice; the review count and rating on Clutch, read directly from the profile on the day, with Trustpilot noted where a profile exists; and the specialism the agency states in its own words. We did not rate the quality of anyone’s work, because we have no way to measure it from the outside.
How the figures were read. Where a site could be fetched we read the live page. Three sites (Bird Marketing, Absolute Digital Media and Minty Digital) return a bot challenge to automated reads, so their on-site facts come from archived copies of their own pages, each dated in the row. Review counts always come from the platform itself, never from a badge or strip on the agency’s site, because several of those strips were out of date when we compared them.
How to read the table. A blank review figure means we could not verify one, not that there are no reviews. "Not published" means the agency does not print a monthly price anywhere we could read. "Unverified" lists claims the agency or a directory makes that we could not confirm; it is not an accusation, it is a gap in what can be checked from outside. Each row links the pages behind it: the agency’s own site, its Companies House entry where one exists and the review platforms we read, with the date. We will correct any cell an agency shows us is wrong.
A note on our own row. We have no verified platform rating yet, our prices are indicative until approved and our terms are proposed. That is the honest position for a London brand whose UK company was incorporated on 2 September 2024. We would rather show that than a strip of stars we have not earned.
The comparison
9 rows, alphabetical · 41 unverified claims listed
Side by side, with sources
| Agency | Reviews, read 9 October 2026 | Lowest published price | Minimum term and notice | London presence | Specialism, in its own words | Unverified | Source |
|---|---|---|---|---|---|---|---|
| Absolute Digital Media | 5.0 stars from 19 | Not published (the enquiry form's lowest budget option is £1,000 to £5,000 a month) | Fixed initial term, length not published; renews automatically for the same duration unless written notice is given before it ends (contract PDF, archived March 2024) | 35 New Broad Street, EC2M 1NH listed as the London office; registered office in Benfleet, Essex; 0800 number only | Digital marketing for regulated and high-risk sectors: casino and iGaming, financial services, crypto, adult and regulated ecommerce (2026 positioning) | 4 claims, listed below | Source 1 |
| Bird Marketing | 5.0 stars from 74 | £249 a month (Startup SEO package on /startup-packages/, archived 15 Dec 2025) | Not stated for SEO or support plans; pay-monthly website packages carry a 24-month contract | 13 Austin Friars, EC2N 2HE listed as the London office with a 020 number; registered office 27 Old Gloucester Street, WC1N 3AX; further offices in Essex and Glasgow | Full-service digital marketing (SEO, PPC, web design, social, AI); Clutch lists its service line as 100% SEO | 5 claims, listed below | Source 2 |
| Breakline | 5.0 stars from 37 | £599 a month (Momentum plan, from the site's Product schema; the amount is not in the pricing page's static HTML) | None; rolling monthly, termination takes effect at the end of the current paid month | 20 Old Bailey, EC4M 7EN on the contact page with a 020 number; registered office in Guildford, Surrey; roles advertised as remote | SEO and generative engine optimisation for local service businesses in the UK and USA | 5 claims, listed below | Source 3 |
| ClickSlice | 5.0 stars from 5 | From £2,500 a month (contact page and FAQ) | Rolling, 30 days' written notice; a standing order is required at onboarding and no refunds are given (fulfilment policy) | Studio 10, Shoreditch Stables, 138 Kingsland Road, E2 8DY in the footer and LocalBusiness schema with a 020 number; registered office 71-75 Shelton Street, WC2H 9JQ; the careers page describes a fully remote team | Ecommerce SEO (Shopify) and AI search (AEO and GEO), with Google Ads | 5 claims, listed below | Source 4 |
| Genie Crawl | 5.0 stars from 33 | Not published (the hero form's lowest budget option is £350 to £700 a month) | Marketed as month to month; the terms require one month's notice (two months after six months of service), payment upfront, no refunds, and a cancellation fee within the 14-day cooling-off period | 120-122 High Street, Whitton, Twickenham, TW2 7LL (London Borough of Richmond upon Thames) with a 020 number; no registered company found under the trading name | SEO (90% of Clutch service line) and PPC for small businesses, plus reputation management and web and app development | 5 claims, listed below | Source 5 |
| London SEO Agency (this is us) | no figure we could verify | from £850 a month, indicative | none, 30 days' notice (proposed, confirmed in writing before you sign) | Tower 42, EC2N 1HN, by appointment | Local, technical and content SEO and AI search visibility for London businesses, delivered from the City office by a named team; part of the Hulk Marketing group | 2 claims, listed below | Source 6 |
| Minty Digital | 4.8 stars from 31 | £995 a month (SEO packages page, archived 21 Jan 2026); its pricing page says "from as little as £1,650" (archived 8 Dec 2025) | 30-day rolling in marketing copy; the published terms page contains no notice period, refund or cancellation mechanics | 9 Noel Street, Soho, W1F 8GH in the footer and LocalBusiness schema; registered office at the same street with postcode W1F 8GQ; LinkedIn and Clutch give Barcelona as HQ and job adverts describe a remote-first team | SEO, GEO, digital PR and link building with productised packages and a self-serve checkout; hubs in London, Barcelona and New York | 5 claims, listed below | Source 7 |
| Re:signal | 4.9 stars from 4 | Engagements begin at £10,000 a month (contact page); a fixed-fee AI Discoverability Audit from £10,000 | Not stated (no minimum term, notice or refund wording found on the 35 pages read) | 20 Eastbourne Terrace, W2 6LG on the contact page with Manchester and Los Angeles addresses; no phone number on the site; positioned as a remote-first team | Ecommerce SEO, generative engine optimisation and digital PR for ecommerce brands, globally | 5 claims, listed below | Source 8 |
| The SEO Works | 4.8 stars from 58 | From £1,500 a month (small business SEO page; the Springboard tier is listed at £1,500 to £3,000 a month) | A Minimum Term (campaigns described as running for a standard twelve months) that renews automatically for the same length; 30 days' notice takes effect at the end of the term; early exit costs 85% of the remaining fees | Bellerive House, 3 Muirfield Crescent, Isle of Dogs, E14 9SZ listed on the contact page; headquarters and registered office in Sheffield; 0800 number only; LinkedIn lists Sheffield and Leeds offices | Integrated SEO, GEO and PPC with paid social, programmatic, digital PR and web design; employee-owned since 2025 | 5 claims, listed below | Source 9 |
Agency by agency
9 entries · alphabetical · no adjectives
Each agency in one paragraph
Absolute Digital Media
Absolute Digital Media Ltd (Companies House 06643590, incorporated 2008) trades from 35 New Broad Street in the City with a registered office in Essex and a non-geographic 0800 number. Its 2026 homepage positions it for regulated sectors. No monthly price is published; the enquiry form starts its budget options at £1,000 to £5,000 a month. Its contract sets a fixed initial term that renews automatically unless notice is given before the end. On 9 October 2026 Clutch showed 19 reviews at 5.0 and Trustpilot 53 reviews at 4.4. The live site blocks automated reads, so its on-site facts come from archived copies dated November 2024 to July 2026.
Unverified
- Google rating of 4.7 from 41 reviews (aggregator figure; no Google Business Profile located)
- Content of the /ai-seo/ page (archive playback failed)
- Glassdoor and Indeed figures (search snippets only)
- Whether the casino and iGaming guide downloads are form-gated
Sources: absolute.digital, pages read 9 Oct 2026 (archived copies where the live site blocks automated reads); Companies House, Absolute Digital Media Ltd, 06643590; Clutch profile, read 9 Oct 2026; Trustpilot profile, read 9 Oct 2026. Read 9 October 2026.
Bird Marketing
Bird Marketing Limited (Companies House 08051880, incorporated 2012) lists a London office at 13 Austin Friars in the City alongside offices in Billericay and Glasgow, and positions nationally as a UK agency. It publishes SEO packages from £249 a month and website packages on 24-month contracts; its terms state no minimum term or notice period for SEO. On 9 October 2026 Clutch showed 74 reviews at 5.0 and Trustpilot 108 reviews at 4.9. The review strip on its own pages showed older counts than the live platforms. The live site blocks automated reads, so its on-site facts come from archived copies dated 2023 to 2026.
Unverified
- The on-site Google figure of 4.9 from 64 reviews (could not be read from Google)
- Google Partner certification (badge image only)
- GoodFirms, UpCity, G2, TechBehemoths and Gartner listing figures (search snippets only)
- Press coverage behind the homepage press logos
- The 118 self-entered "Industry Recognitions" on Clutch
Sources: bird.co.uk, pages read 9 Oct 2026 (archived copies where the live site blocks automated reads); Companies House, Bird Marketing Limited, 08051880; Clutch profile, read 9 Oct 2026; Trustpilot profile, read 9 Oct 2026. Read 9 October 2026.
Breakline
Breakline Ltd (Companies House 11298365, incorporated 2018, with 2012 given as the founding year on its site) is registered in Guildford and lists a London address at 20 Old Bailey. It sells monthly plans with no minimum term; the current entry plan is £599 a month, a figure carried in the page’s structured data rather than its visible HTML. On 9 October 2026 Clutch showed 37 reviews at 5.0 and Trustpilot 19 reviews at 4.6, the most recent from March 2024. Its site carries 32 London location pages built from one template.
Unverified
- The hero line "From 190+ reviews" and schema reviewCount 192 (basis not stated anywhere on the site)
- The "#1 on GOV.UK" claim (traced to a defunct supplier listing)
- Whether a Google Business Profile exists (indirect signals only)
- Link-building, local and technical plan prices (loaded by JavaScript only)
- Any trading before the 2018 incorporation behind the "since 2012" date
Sources: breaklineagency.com, pages read 9 Oct 2026; Companies House, Breakline Ltd, 11298365; Clutch profile, read 9 Oct 2026; Trustpilot profile, read 9 Oct 2026. Read 9 October 2026.
ClickSlice
ClickSlice Limited (Companies House 10876199, incorporated 2017) gives a Shoreditch studio address and a 020 number, with a registered office in Covent Garden, and describes its team as fully remote. It publishes a starting price of £2,500 a month and works on rolling 30-day terms with a compulsory standing order. On 9 October 2026 Clutch showed five reviews at 5.0, all from autumn 2020, and Trustpilot 21 reviews at 4.0 with none in the previous twelve months. Its positioning is ecommerce and AI search, and its guarantee wording differs from page to page.
Unverified
- Google Business Profile review count (the on-page 4.8 from 103 is the site’s own Product schema)
- US Search Awards 2025 and UK Digital Growth Awards 2024 finalist claims
- Shopify Experts status and "certified Shopify specialists"
- Yell 4.7 from 15 reviews, G2, DesignRush and TechBehemoths figures (search snippets only)
- Live chat availability
Sources: clickslice.co.uk, pages read 9 Oct 2026; Companies House, ClickSlice Limited, 10876199; Clutch profile, read 9 Oct 2026; Trustpilot profile, read 9 Oct 2026. Read 9 October 2026.
Genie Crawl
Genie Crawl trades from Whitton in the London Borough of Richmond upon Thames with a 020 number and lists a New York address; we could not find a registered company under the trading name. It publishes no prices and asks for a monthly budget from £350 to £700 upwards in its enquiry form. Its pages describe month-to-month working while its terms set a one- to two-month notice period, upfront payment and no refunds. On 9 October 2026 Clutch showed 33 reviews at 5.0; Trustpilot holds one review at 3.2 on an unclaimed profile. The 320 Google reviews cited on its own pages could not be read from Google.
Unverified
- 320 Google reviews at 5.0 (self-reported; the review widget’s data endpoint is locked)
- "Number 1 UK SEO company from a total of 3,891 reviewed companies" (no date or leaderboard link)
- The registered legal entity (no Companies House match for the trading name)
- Sortlist, Gust, G2, MobileAppDaily and DesignRush figures (search snippets only)
- Whether the New York address is staffed
Sources: geniecrawl.com, pages read 9 Oct 2026; Clutch profile, read 9 Oct 2026; Trustpilot profile (unclaimed), read 9 Oct 2026. Read 9 October 2026.
London SEO Agency (this is us)
London SEO Agency (this is us) is a trading name of Hulk Marketing Ltd, Companies House 15931335, incorporated on 2 September 2024, part of the Hulk Marketing group. We work from Tower 42, 25 Old Broad Street, EC2N 1HN, by appointment, visiting clients across London. Our indicative price floor is £850 a month and our proposed terms are no minimum term and 30 days’ notice from day one; both wait on approval before they are final. We have no verified rating on any review platform yet and we show no stars until we do. Every result we publish names the client, the figure, the source and the date it was recorded.
Unverified
- Prices are indicative and the contract terms are proposed until they are confirmed in writing
- No review-platform profile has been claimed for the London brand yet
Sources: Our pricing page, with every tier and its terms; Before you sign: our terms in plain English; Companies House, Hulk Marketing Ltd, 15931335. Read 9 October 2026.
Minty Digital
Minty Digital Ltd (Companies House 11088414, incorporated 2017) is registered in Noel Street, Soho, and prints the same street in its footer, while its LinkedIn and Clutch profiles give Barcelona as the headquarters and its job adverts describe quarterly meet-ups rather than a staffed London office. It publishes prices: SEO packages from £995 a month on one page and from £1,650 on another, with digital PR and link-building products priced separately. Its marketing copy describes 30-day rolling contracts; its terms page does not set out notice or refunds. On 9 October 2026 Clutch showed 31 reviews at 4.8 and Trustpilot 24 reviews at 4.6. The live site blocks automated reads, so its on-site facts come from archived copies dated November 2025 to October 2026.
Unverified
- Google Business Profile rating and review count
- Google Partner tier (the badge link shows no agency name)
- The Manifest, Sortlist, DesignRush, TechBehemoths and other directory figures (search snippets only)
- Content of the local SEO service page (never archived)
- Whether the Cloudflare challenge blocks AI crawlers
Sources: mintydigital.com, pages read 9 Oct 2026 (archived copies where the live site blocks automated reads); Companies House, Minty Digital Ltd, 11088414; Clutch profile, read 9 Oct 2026; Trustpilot profile, read 9 Oct 2026. Read 9 October 2026.
Re:signal
Re:signal (company 08251031, founded in 2012 as BlueGlass London and renamed in 2018) lists a Paddington address alongside Manchester and Los Angeles, publishes no phone number and describes itself as a remote organic growth agency for ecommerce brands. Its contact page states that typical engagements begin at £10,000 a month and it sells a fixed-fee AI audit from the same figure; no minimum term or notice wording appears on the site. On 9 October 2026 Clutch showed four unique reviews at 4.9 and no Trustpilot profile exists. It is a certified B Corporation and does not target "SEO agency London" searches on-page.
Unverified
- Google Business Profile (none found)
- Clutch client-mix split and the exact wording of its Clutch badge
- Glassdoor, DesignRush, The Manifest, Digital Agency Network and MobileAppDaily figures (403 or Cloudflare)
- Conference ticket prices
- Whether the site ever had London, services or pricing pages (archive offline during research)
Sources: resignal.com, 35 pages read 9 Oct 2026; Companies House, company 08251031; Clutch profile, read 9 Oct 2026. Read 9 October 2026.
The SEO Works
The SEO Works Ltd (Companies House 06845547, incorporated 2009) is headquartered in Sheffield, employee-owned since June 2025, and lists a London address on the Isle of Dogs with a single 0800 number for all offices. It publishes tiered price ranges from £1,500 a month and its terms set a minimum term that renews automatically, with an 85% charge for leaving early. On 9 October 2026 Clutch showed 58 reviews at 4.8, Bark 94 at 5.0 and Trustpilot 37 at 4.2. Its own pages cite a Google rating of 4.5 from 89 reviews that we could not tie to a Google listing.
Unverified
- The on-site "4.5 stars on Google (89 reviews)" (no Google Business Profile located)
- G2 18 reviews at 5.0 and a "£2,000 per month" listing (search snippet only)
- DesignRush and Glassdoor figures (search snippets only)
- A Philadelphia office (third-party directory only)
- Press appearances listed in the CEO bio
Sources: seoworks.co.uk, pages read 9 Oct 2026; Companies House, The SEO Works Ltd, 06845547; Clutch profile, read 9 Oct 2026; Trustpilot profile, read 9 Oct 2026; Bark profile, read 9 Oct 2026. Read 9 October 2026.
How to use this
6 questions · they apply to us too
Questions to ask any agency, including us
Ask for the contract before the proposal, and read the minimum term, the renewal clause and what happens if you pause.
Ask who will do the work month to month, by name, and where they are based.
Ask what you own: the Google accounts, the content, the links, the dashboard, and how handover works if you leave.
Ask for the lowest monthly price they sell at, in writing, and what it includes in month one.
Ask them to show a client’s public listing or Search Console, not a badge or an average uplift figure.
Ask which review platform they are on and open it yourself; compare the count and the dates with what the site says.
Our own answers are on the site: the terms on Before you sign, the people on the team page, what you own on the pricing page, and every result with its source on the case studies.
Questions
5 questions
About this comparison
Why is your own agency in a comparison you wrote?
Why do you show Clutch counts rather than Google reviews?
What does "not published" mean in the price column?
What does "unverified" mean?
How should I use this table to choose?
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