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SEO companies in South East

3 SEO companies are in South East and scored on public evidence. Published entry retainers run £4.5k/mo to £6k/mo, with a median of £5k/mo.

Demand concentrates in Reading, Brighton, Oxford, Southampton. The most common in-house disciplines here are Technical SEO, Content Marketing, Enterprise SEO, and the verticals with the deepest local bench are Ecommerce, Financial Services, SaaS & Technology.

Profiles listed

3

In South East

Median retainer floor

£5k/mo

£4.5k/mo – £6k/mo range

Median tenure

0 yrs

Oldest founded 2010

Hub Score range

66–69

Median 66 of 100

Ranked directory profiles in South East

Ordered by Hub Score. Entity type and missing commercial facts are labeled explicitly; nothing is sponsored.

#1

Aira

Milton Keynes · Founded 2016

69Hub Score v2Evidence 50%

A search and digital PR agency with an in-house build team, best known for structured processes and transparent reporting.

Technical SEODigital PRContent MarketingPaid Media
£5k–£10k/mo 20-50Full profile
#2

Blue Array

Reading · Founded 2017

66Hub Score v2Evidence 50%

An SEO-only agency positioned as an outsourced search department, including white-label delivery for other agencies.

Technical SEOEnterprise SEOContent MarketingInternational SEO
£1.5k–£5k/mo 20-50Full profile
#2

Screaming Frog

Henley-on-Thames · Founded 2010

66Hub Score v2Evidence 50%

The agency behind the SEO Spider crawler, with a technical audit and search marketing practice alongside the software.

Technical SEOEnterprise SEOPaid MediaAnalytics
£5k–£10k/mo 20-50Full profile

Side-by-side comparison

All 3 South East listings compared on the four facts buyers screen first: age, headcount, entry price and pricing model.

CompanyCityFoundedTeamRetainer fromPricingHub Score
AiraMilton Keynes201620-50£6k/moMonthly retainer69
Blue ArrayReading201720-50£4.5k/moMonthly retainer66
Screaming FrogHenley-on-Thames201020-50£5k/moRetainer or project66

What retainers actually start at in South East

Median entry retainer is £5k/mo, with the range running £4.5k/mo to £6k/mo. These are floors, not averages of what clients spend — scope, competitiveness and content volume move the real number well above them.

£1.5k–£5k/mo1 company · 33%
£5k–£10k/mo2 companies · 67%

Floors shown in GBP, as published or disclosed by each company.

Fast shortlist for South East

Picked mechanically from the data on this page, so you can start a shortlist without reading every profile.

Services available in South East

Share of listed companies that deliver each discipline in-house. Anything missing here is work you would brief to a second vendor.

Industries with local depth

Verticals the listed companies document experience in. Deep local bench means you can compare two or three shops that already know your SERP.

How to read this region shortlist

South East listings with published headcount span 20-50 (3). Monthly retainer is the most common published commercial model, which helps frame a normal engagement before a sales call.

Match scale to your problem. 3 of the 3 with published headcount are under 50 people, where the people who win the pitch usually do the work. None of the companies with published headcount operates at 150+; verify bench depth directly for multi-market programmes.

Treat the retainer floor as a scope signal. A £4.5k/mo floor and a £6k/mo floor rarely describe the same deliverable set. Ask each shortlisted company to map its floor to hours, content output and technical work per month, then compare those, not the price.

Verify tenure independently. Median tenure in South East is 0 years; the longest-running listing, Screaming Frog, has traded since 2010. Founding dates can be checked against company registers and archived versions of the site.

How the Hub Score on this page is calculated

100 points across five factors, each computed from a fact you can check yourself. Nothing here is bought, voted on or averaged from review sites.

  • 15 ptsOperating resilience — 3 points under 3 years; 6 at 3-5; 9 at 6-10; 11 at 11-15; 13 at 16-20; 15 at 21+ years. Tenure is useful evidence of continuity, but diminishing bands prevent age from dominating the score.
  • 25 ptsDelivery capability — A monotonic diminishing-return curve: 1 service = 6, 2 = 10, 3 = 14, 4 = 17, 5 = 20, 6 = 22, 7+ = 25. Additional documented capability can reduce hand-offs, while diminishing returns limit incentives to pad service lists.
  • 25 ptsSector evidence — Industry coverage contributes 10, 14, 16 or 18 points; 1, 2 or 3+ source-linked case studies add 3, 5 or 7 points. Industry coverage establishes relevance; substantive case studies add depth. Diminishing returns stop a long tag or case list from overwhelming the score, while overall source coverage remains a separate confidence measure.
  • 20 ptsCommercial clarity — 4 for a live site + 6 for a disclosed entry floor + 5 for a stated pricing model + 5 for a specific best-fit client statement. The model rewards buyer-facing commercial clarity, not higher prices or a preference for retainers over projects. Source depth is tracked separately in Evidence Confidence.
  • 15 ptsDelivery capacity — Team bands map monotonically: 10-20 = 5, 20-50 = 8, 50-150 = 11, 150-250 = 13, 250-500 or 500+ = 15. Headcount is treated as capacity, not quality. Larger teams are no longer penalised through an unvalidated ideal-size curve.
Read the full methodology →

SEO companies in South East: common questions

How many SEO companies are listed in South East?
Every company on this page has a verified operating presence in South East and is scored with the same published Hub Score model. We only list agencies whose regional presence we can verify, so the count grows as research is completed rather than being padded with unsupported local claims.
What should an SEO retainer cost in South East?
The retainer floors shown here are what each company states publicly, in GBP. Floors are the starting point for a defined scope; competitive verticals, multi-location work and content production typically land above them. Compare like-for-like scope, not headline numbers.
Is a local SEO company better than a remote one?
Locality matters when the work depends on local knowledge — map pack visibility, regional press and language nuance. For national or international programmes, discipline depth matters more than distance. We tie every listing to its real base so you can decide deliberately instead of guessing.
Can a company pay to rank higher on this page?
No. Ordering is the Hub Score v2, computed from operating resilience, documented delivery capability, sector evidence, commercial clarity and capacity. Evidence Confidence is published separately. There is no paid placement, sponsored row or commission on introductions.