Pricing
Pay by the check. No subscription. Credits never expire. Top up when you run low.
Suites
Profession-aligned packs, one signed PDF.
Built for a specific job (letting agent client check, conveyancer transaction). One call runs the full set of checks the regulator expects, with a profession-specific PDF for the file.
Letting Agent Client Check (S1)
See the suite →Tenant + landlord + property in one signed PDF. OpenSanctions PEP + adverse-media, PSC walks for corporate landlords, MEES, crime + flood.
Letting Agent Client Check (S1) - Standard
| Pack | Per check | Total |
|---|---|---|
| Pay as you go | £4.95 | £4.95 |
| 10-pack | £4.50 | £45 |
| 100-pack | £3.95 | £395 |
| 1,000-pack | £2.95 | £2950 |
Letting Agent Client Check (S1) - Bulk
| Pack | Per check | Total |
|---|---|---|
| Bulk 50-row batch | £4.50 | £225 |
| Bulk 200-row batch | £3.95 | £790 |
| Bulk 1,000-row batch | £2.95 | £2950 |
Letting Agent Client Check (S1) - Pro
| Pack | Per check | Total |
|---|---|---|
| Pro pay as you go | £14.95 | £14.95 |
| Pro 10-pack | £12.95 | £129.50 |
| Pro 100-pack | £9.95 | £995 |
| Pro 1,000-pack | £7.95 | £7950 |
Conveyancer's Compliance + Property Pack (S2)
See the suite →Buyer + seller AML (sanctions / PEP / adverse-media / FCA Warning) plus environmental risk (flood / radon / coal mining / contaminated land / knotweed) in one signed PDF.
Conveyancer's Compliance + Property Pack (S2) - Standard
| Pack | Per check | Total |
|---|---|---|
| Pay as you go | £19.95 | £19.95 |
| 50-pack | £17.95 | £897.50 |
| 200-pack | £15.95 | £3190 |
| 1,000-pack | £13.95 | £13950 |
Conveyancer's Pack (S2) - Buyer-only ID + AML
| Pack | Per check | Total |
|---|---|---|
| Buyer-only ID + AML | £4.95 | £4.95 |
| Buyer-only 10-pack | £4.50 | £45 |
| Buyer-only 100-pack | £3.95 | £395 |
Conveyancer's Pack (S2) - Environmental-only
| Pack | Per check | Total |
|---|---|---|
| Environmental-only | £14.95 | £14.95 |
| Environmental-only 50-pack | £12.95 | £647.50 |
| Environmental-only 200-pack | £10.95 | £2190 |
Conveyancer's Compliance + Property Pack (S2) - Pro
| Pack | Per check | Total |
|---|---|---|
| Pro pay as you go | £39.95 | £39.95 |
| Pro 50-pack | £34.95 | £1747.50 |
| Pro 200-pack | £29.95 | £5990 |
Single checks
6 individual checks, run any one on its own.
When the job needs a single check, not a whole-job pack. Each runs in seconds and ships with a downloadable PDF certificate.
Business Risk + Director Score
| Pack | Per check | Total |
|---|---|---|
| 1 report (single, card) | £4.95 | £4.95 |
| 10-pack | £3.95 | £39.50 |
| 50-pack | £2.49 | £124.50 |
| 250-pack | £1.49 | £372.50 |
| 1,000-pack | 79p | £790 |
Companies House Lookup
| Pack | Per check | Total |
|---|---|---|
| 1 lookup (single, card) | 49p | 49p |
| 10-pack | 39p | £3.90 |
| 50-pack | 32p | £16 |
| 250-pack | 25p | £62.50 |
EPC Energy Lookup
| Pack | Per check | Total |
|---|---|---|
| 1 lookup (single, card) | 30p | 30p |
| 10-pack | 25p | £2.50 |
| 100-pack | 18p | £18 |
| 1,000-pack | 12p | £120 |
| 5,000+ bulk CSV | 8p | £400 |
FCA Firm Verification
| Pack | Per check | Total |
|---|---|---|
| 1 check (single, card) | £1.95 | £1.95 |
| 10-pack | £1.49 | £14.90 |
| 100-pack | 99p | £99 |
| 1,000-pack | 59p | £590 |
Postcode Intelligence Report
| Pack | Per check | Total |
|---|---|---|
| 1 report (single, card) | 49p | 49p |
| 10-pack | 35p | £3.50 |
| 100-pack | 25p | £25 |
| 1,000-pack | 15p | £150 |
Sanctions + PEP Screening
| Pack | Per check | Total |
|---|---|---|
| 1 check (single, card) | 69p | 69p |
| 10-pack | 49p | £4.90 |
| 100-pack | 35p | £35 |
| 1,000-pack | 25p | £250 |
Mix-and-match packs
Combine 2 or 3 single checks at a discount.
Not a profession-aligned suite (those are at the top) and not a single check either. Use a pack when you specifically need 2 or 3 individual checks together at a better price than running them separately.
KYB Pack
Full corporate due diligence on one UK company. Runs FCA verification, Companies House lookup, sanctions screening on the company and its directors, and a business risk + director score. Combined into one PDF.
£6.95£11.35
Property Pack
Full address snapshot for one UK property. Combines postcode intelligence (geography, crime, flood) with the EPC certificate for any properties at that postcode. One PDF.
59p79p
Director Pack
Director vetting on one UK company. Companies House lookup (current officers), sanctions screening on each named director, and a business risk + director score. For SME loan / supplier / partner due diligence where the people matter as much as the entity.
£5.95£8.89
Credit packs
Top up once, run any check above against the balance.
Optional. Credits never expire and apply to any product. Buy a top-up to skip the per-check card prompt.
£20 starter pack
occasional one-off checks
£20 of credit.
£50 / £55 credit
regular use, ~10–50 checks/month
Pay £50, get £55 of credit.
£100 / £115 credit
growing use, ~50–200 checks/month
Pay £100, get £115 of credit.
£500 / £600 credit
high volume, considering Stratum API
Pay £500, get £600 of credit.
Credit applies to any check on this page (single checks, suites, bulk). Never expires. You will need a Certaby account to hold a balance.
Continuous monitoring
Watch a UK company. Get an email digest when something changes.
Per-company per-month subscription. Director appointed/resigned, status changes, charges registered, accounts overdue, and five other event types.
Companies House monitoring
| Pack | Per watch-month | Total |
|---|---|---|
| 1 watch-month | £2.49 | £2.49 |
| 10 watch-months | £1.99 | £19.90 |
| 50 watch-months | £1.58 | £79 |
| 200 watch-months | £1.25 | £250 |
Doing this a lot? Three options.
Certaby is built for occasional and steady use. If your volume is climbing, two cheaper paths exist — both run by the same team, both transparently priced.
Occasional / one-off
PAYG (Certaby)
No commitment. Pay by the check. Credit packs never expire.
You're already here →Ongoing / programmatic
API subscription (Stratum)
Same data via REST API. Cheaper per-call rate at scale than any Certaby band. Monthly subscription, predictable price.
See Stratum APIs →Want it integrated for you
Managed setup (Stratum)
We wire the checks into your existing system — CRM, case-management, underwriting workflow. £495–£995/day depending on scope.
Talk to Stratum →