Last Updated on May 29, 2026
Version: 1.0 (pre-submission draft) Date drafted: 21 April 2026 Field period (locked): 1 September 2026 to 31 October 2026 Publication target: 20 January 2027
What this study is
UK SEO Pricing Study 2026: a benchmark of what UK businesses actually pay for SEO, and what agencies actually charge.
Who is running it
Lead researcher. Jacob Whitmore, founder, Whito Ltd. Data controller and project lead. Affiliation: Whito Ltd (UK company, Companies House number to insert on submission).
External reviewer. To be named before the field period opens. The reviewer has no commercial relationship with Whito Ltd or WhitoMedia and is named in the published report. Review correspondence is retained and available on request.
What we are investigating
This study answers four empirical questions about SEO pricing in the United Kingdom:
- How much UK small and mid-sized businesses (SMBs) actually pay for SEO, by stage, region and vertical.
- How UK SEO providers actually price their work, by firm type, team composition and deliverables.
- What buyers get for the money, measured by deliverables received and outcomes tracked.
- Where the buying market and the selling market diverge.
The study is observational, cross-sectional, and mixed-method (two independent self-completion online surveys feeding a shared aggregate analysis). It is the v2 edition of a live public report at whito.co.uk/research/uk-seo-pricing-data. v1 (published February 2026) used public-domain sources only. v2 collects primary data under this pre-registration.
Full methodology: whito.co.uk/research/uk-seo-pricing-study-methodology Survey instruments: whito.co.uk/research/uk-seo-pricing-study-surveys Report structure and analysis plan: whito.co.uk/research/uk-seo-pricing-study-report-structure Launch and data-collection plan: whito.co.uk/research/uk-seo-pricing-study-launch-plan
What we expect to find
Eight falsifiable predictions, each with a predicted direction and a 95% confidence threshold. Each published finding confirms, refutes, or reports as untestable for each hypothesis. Null results are reported with the same prominence as confirmatory results.
H1. The median UK monthly SEO retainer for Build-stage SMBs (£250k to £2m annual revenue) sits between £1,500 and £3,000.
H2. London SEO retainers for equivalent SMB clients are at least 20% higher than rest-of-UK retainers at the stage-matched median.
H3. UK SMBs spending under £500 per month on SEO are at least 50% more likely to report dissatisfaction with their current supplier than those spending £1,500 per month or more. This replicates the direction of the pattern reported by Backlinko (https://backlinko.com/seo-services-statistics).
H4. The median agency retainer exceeds the median SMB spend at every stage bucket, with the largest gap at the Build stage.
H5. The modal SMB monthly spend on SEO is below £1,000.
H6. At least 40% of SMB respondents cannot identify a revenue metric their SEO supplier reports on.
H7. Digital PR link prices quoted by UK agencies fall in the £500 to £1,200 range per link (below the BuzzStream global benchmark of $1,250 to $1,500, https://www.buzzstream.com/blog/digital-pr-costs/).
H8. Home-services SMBs pay less per month for SEO than e-commerce SMBs at the same revenue stage, but report higher satisfaction on average.
Each hypothesis is tested at 95% confidence where cell sizes support. The pre-registered analysis approach and fallback for underpowered cells is set out in section 8.
How the study works
Study type. A survey-based study. We observe and report, we do not manipulate any variables.
Transparency. Fully transparent. Every respondent knows the study is run by Whito Ltd. The survey landing pages name Whito as the data controller and link to the funding and conflicts-of-interest statement in the methodology.
Study design. Two parallel instruments running during a shared field window:
- Agency and freelancer instrument (Typeform).
- SMB buyer instrument (self-hosted SurveyJS, single Postgres back end).
Both route to a single database with row-level encryption. PII is separated from response data on ingest, linked by a random ID.
Randomisation. Question order is not randomised across respondents (the instruments have a fixed logical sequence so that mid-survey anchors are consistent). Response options within Likert and multi-choice items are presented in a fixed order documented in the published instruments.
Who we are surveying
Existing data. None. All primary data is collected during the field period from a clean starting state. v1 of the report used public-domain sources only; none of v1’s sources are reused as response data in v2.
Data collection procedures. See whito.co.uk/research/uk-seo-pricing-study-launch-plan for the full week-by-week plan. Summary:
- Agency side. Direct outreach (LinkedIn DMs to named founders and heads of SEO on a list of 400+ UK SEO agencies), trade-body distribution (Data and Marketing Association, IAB UK, BIMA, The Recommended Agency Register, The Drum Network), community posts (SEOFOMO, /r/SEO, Traffic Think Tank, Women in Tech SEO, UK SEO Community, Online Geniuses), and the Whito operator list. No paid panel on the agency side.
- SMB side. Whito newsletter sends, partner distribution (Federation of Small Businesses, Enterprise Nation, Be The Business, regional Chambers of Commerce, Federation of Master Builders, Checkatrade, Trustatrader, TradePoint, Shopify Plus UK, The Law Society, ICAEW), and a paid top-up panel (Attest or Prolific) capped at 25% of the final SMB sample and flagged separately in the working dataset.
Field window: 1 September 2026 to 31 October 2026 inclusive. No extension under any circumstance. If either target is missed, the published report reports both the target and the achieved sample, and restates every headline with revised confidence intervals.
Sample size.
- Agency target: 100+ completions, of which at least 75 agencies and at least 20 independent consultants, covering all four UK nations.
- SMB target: 200+ completions, with minimum cell sizes of 30 in each of three revenue stages (Start £50k to £250k, Build £250k to £2m, Scale £2m to £10m) and 25 in each of the four largest verticals.
Sample size rationale. 100 agencies yields a margin of error of roughly plus or minus 10 percentage points at 95% confidence on a proportion, adequate for headline retainer bands and regional index work. It does not support three-way cross-cuts reliably; cuts with cell sizes below 20 are collected but not published as point estimates, only as ranges. 200 SMBs supports the minimum cell sizes stated for stage and vertical cuts.
Stopping rule. Data collection stops at the end of the field window (23:59 GMT, 31 October 2026), not at achieved sample size. No rolling closure. No early closure for hit targets. No extension for missed targets. Partial responses are excluded from primary analysis but retained for descriptive drop-off reporting.
What we are measuring
Manipulated variables. None. Observational study.
Measured variables.
On the agency instrument, measured variables include (non-exhaustive):
- Firm type (agency, consultancy, freelance sole trader) and size (headcount band, revenue band).
- Retainer pricing: typical monthly fee by client stage bucket, minimum engagement term, price range quoted in the last 30 days.
- Project pricing: fixed-scope projects delivered in the last 12 months with price bands.
- Deliverable mix: technical SEO, on-page, content, digital PR / link building, local SEO, reporting cadence, account-management hours.
- Pricing model: fixed retainer, tiered packages, day rate, performance-linked.
- Client vertical mix.
- Geographic client mix (London vs rest of UK, international split).
- Opt-in for named acknowledgement.
On the SMB instrument, measured variables include (non-exhaustive):
- Business stage (revenue band, headcount, years trading), vertical, region.
- Current monthly SEO spend (banded and exact, where willing).
- Supplier type (UK agency, international agency, UK freelancer, international freelancer, in-house plus external support).
- Engagement length (months), minimum term signed for.
- Deliverables received (checklist anchored to the methodology definition of SEO).
- Outcome metrics tracked (leads, revenue attributed, organic sessions, keyword rankings, other or none).
- Satisfaction (5-point Likert) and likelihood to renew (5-point Likert).
- Whether supplier reports on at least one revenue metric.
- Decision involvement (decision-maker, influencer, approver).
- Opt-in for follow-up interview and for the incentive.
Full question wording, response options, and skip logic are published verbatim at whito.co.uk/research/uk-seo-pricing-study-surveys before the field period opens.
Indices and derived measures.
- Stage-matched median retainer (agency side), reported by Start / Build / Scale.
- Regional retainer index (agency side), London = 100.
- Revenue-metric reporting rate (SMB side), defined as the share of SMB respondents whose supplier reports on at least one explicit revenue metric.
- SMB satisfaction rate by spend band.
- Deliverable-to-outcome alignment score: a composite of “deliverables received” and “outcomes reported”, scored 0 to 5, documented in the analysis notebook.
No derived measure is constructed post hoc to support a hypothesis. Any index introduced after the field closes is reported as exploratory.
How we will analyse the data
Statistical models.
- Central tendency: median as the headline, interquartile range alongside, mean reported where distributions are roughly normal.
- Confidence intervals: 95% via bootstrapped percentiles with 10,000 resamples.
- Proportions: Wilson score intervals at 95%.
- Group comparisons for hypotheses H2, H3, H4, H5, H6, H8: two-sample tests on medians (Mann-Whitney U) for continuous variables, two-proportion z-tests for binary outcomes. Effect sizes reported alongside p-values.
- Directional hypotheses (H2, H3, H4, H5, H7, H8): one-sided tests. Non-directional where specified.
- Multiple comparisons: for the eight primary hypotheses, reported p-values are adjusted using Benjamini-Hochberg (FDR = 0.05). Unadjusted p-values are also shown.
Transformations. Monetary values are analysed in their raw £ units. Where distributions are heavily right-skewed (expected for retainer and project spend), median-based statistics are used; log transformations are reported only as robustness checks, not as primary.
Inference criteria. A hypothesis is reported as “supported” if the directional prediction holds and the 95% confidence interval excludes the null threshold stated in the hypothesis. “Not supported” if the confidence interval includes or crosses the null. “Untestable” if the relevant cell size is below 20 or the variable was not answered by at least 80% of the eligible sample.
Data exclusion. The following cases are excluded from primary analysis, and the exclusion rate is reported in full in the methodology addendum:
- Screening failures (documented and reported but excluded from the working dataset).
- Completion time under 3 minutes (flagged as suspect, reviewed manually, excluded if the response pattern is clearly non-genuine).
- Straight-lining on Likert batteries (all same answer across more than 5 adjacent items).
- Logical errors (e.g., retainer entered as £50,000,000) resolved by contacting the respondent for correction, or excluded if no response within 5 working days.
- Duplicate submissions from the same email within 30 days (latest retained).
Missing data. Item-level missingness is reported per variable. Imputation is not used for any primary estimate. Missing values reduce the denominator for that specific cut, and the denominator is stated in every caption. Multiple imputation is considered only for a single robustness check on the revenue-metric reporting rate (H6), and is flagged clearly if reported.
Exploratory analysis. Any analysis not in the list above is labelled exploratory in the published report. Exploratory findings are reported without confidence intervals and are framed as hypothesis-generating for future editions. Exploratory results do not appear in the executive summary.
Other details
Funding and conflicts of interest. The study is funded by Whito Ltd. No sponsor, advertiser, vendor, or respondent pays for inclusion, placement, ranking, or influence over the findings. Whito Ltd’s commercial model is set out at whito.co.uk/disclosures.
WhitoMedia is a separately run operation with the same founder. WhitoMedia has commercial relationships with some UK SEO providers who may respond to this study. WhitoMedia staff are firewalled from the study’s design, fieldwork, analysis, and write-up. A named list of firewalled staff is held on file.
Ethics and data handling. The study operates under UK GDPR with explicit consent as the lawful basis for data collection. Raw PII is separated on ingest, retained for no longer than 60 days after publication, then permanently deleted. Respondents can withdraw during the field period and up to 30 days post-publication. Withdrawal is confirmed in writing.
Data sharing. Aggregated, anonymised data tables are published under CC BY 4.0 alongside the report. Individual-level data is not shared externally.
Corrections. Corrections are logged publicly and dated at whito.co.uk/corrections. Material corrections trigger a v2.x release note.
Licensing and citation. The published report is free to read. The recommended citation will be finalised on publication and included in the published PDF.
This pre-registration is locked on submission. Any mid-study change to the question set, definitions, sampling frame, or analysis approach will be lodged as a dated amendment at whito.co.uk/research/uk-seo-pricing-study-methodology and submitted as an update to the OSF registration.
