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B2B and SaaS SEO agencies in the United Kingdom, ranked
rankedagencies.com/b2b-seo-agencies/united-kingdomThe top b2B and SaaS SEO agencies in the United Kingdom on RankedAgencies in October 2026 are Growthack, Brainz Digital and Candidsky, out of 13 checked agencies there.
Rank numbers are the agency's place in the full ranking of 26 agencies. See all b2B and SaaS SEO agencies.
| Rank | Agency | Fact that decided the rank | Team | Founded | Score |
|---|---|---|---|---|---|
| 02 | Growthack Nottingham, United Kingdom | 2 B2B SEO wins: European Search Awards 2025 and 2026europeansearchawards.com · 20 Oct 2026 | 2-9 people | 2020 | 73/100 |
| 04 | Brainz Digital London, United Kingdom | B2B SEO (Small) winner, Global Search Awards 2026globalsearchawards.net · 20 Oct 2026 | 10-49 people | 2019 | 63/100 |
| 05 | Candidsky Manchester, United Kingdom | B2B SEO (Small) winner, Global Search Awards 2024globalsearchawards.net · 20 Oct 2026 | 10-49 people | 2006 | 60/100 |
| 06 | First Internet Hale, United Kingdom | B2B SEO (Small) winner, UK Search Awards 2023searchawards.co.uk · 20 Oct 2026 | 10-49 people | 1998 | 59/100 |
| 07 | MRS Digital Church Crookham, United Kingdom | 2 B2B SEO (Large) wins: UK 2023 and European Search Awards 2024europeansearchawards.com · 20 Oct 2026 | Not public | 1999 | 55/100 |
| 09 | POLARIS Gerrards Cross, United Kingdom | 4 B2B SEO (Small) shortlist places, European Search Awards 2025-26europeansearchawards.com · 20 Oct 2026 | Not public | 2009 | 55/100 |
| 16 | Embryo Manchester, United Kingdom | B2B SEO (Large) silver, UK Search Awards 2025searchawards.co.uk · 20 Oct 2026 | 50-249 people | 2014 | 49/100 |
| 19 | NUOPTIMA London, United Kingdom | B2B SEO silver with Cortavo, US Search Awards 2026ussearchawards.com · 20 Oct 2026 | 10-49 people | 2020 | 47/100 |
| 20 | Assisted Claybrooke Parva, United Kingdom | B2B SEO (Small) winner, UK Search Awards 2025searchawards.co.uk · 20 Oct 2026 | 10-49 people | 2016 | 46/100 |
| 21 | Reboot Online London, United Kingdom | B2B SEO (Large) winner, UK Search Awards 2025searchawards.co.uk · 20 Oct 2026 | 50-249 people | 2012 | 42/100 |
| 23 | Bottled Imagination Manchester, United Kingdom | B2B SEO (Small) winner with Bókun, UK Search Awards 2024searchawards.co.uk · 20 Oct 2026 | 2-9 people | Not public | 42/100 |
| 24 | Quirky Digital Liverpool, United Kingdom | B2B SEO (Small) winner with MaxContact, Global Search Awards 2025globalsearchawards.net · 20 Oct 2026 | 10-49 people | 2020 | 42/100 |
| 26 | Skale London, United Kingdom | 4.9 on Clutch from 20 reviewsclutch.co · 20 Oct 2026 | 10-49 people | 2019 | 36/100 |
A filter removes agencies and keeps their rank numbers. Location matches the headquarters and any office in the agency's row. No agency pays to be listed or ranked.
RankedAgencies ranks agencies on facts we checked ourselves, each linked to its source. It is run by scandiweb, which also appears in these rankings. Disclosure · How scores work
Questions about this ranking
Which are the best b2B and SaaS SEO agencies in the United Kingdom in 2026?
In the RankedAgencies ranking, checked 20 Oct 2026, the top five in the United Kingdom are Growthack, Brainz Digital, Candidsky, First Internet and MRS Digital.
How are these b2B and SaaS SEO agencies ranked?
Each agency is scored with one published formula (v0.2) on award wins, client reviews and how recent each fact is. Every fact links to the page it was checked on and shows the check date. RankedAgencies is run by scandiweb, which also appears in these rankings.
How is the location decided?
An agency counts for a country when its headquarters or one of its listed offices is there.
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