At a glance · for buyers and watchdogs
O. SEAMAN & SON LIMITED has won £26.1m across 4 public-sector buyers, with 3 live contracts. No active Companies House risk flags.
Why: top buyer Broadland Development Services Limited at 52% · 100% in Construction work · 0 active risk flags · 0 modifications.
ESG & policies vault · 0/5
Key governance & sustainability policies. Published documents link out; missing ones are greyed.
Capabilities
What this supplier does, where they sit, who they sell to.
Extracted automatically from seamans.co.uk on Jul 2026. Not independently verified — treat as the supplier’s own marketing claims.
Case studies · 9
Delivery stories from the supplier’s website. Clients are not yet cross-checked against award records.
Extracted automatically from seamans.co.uk on Jul 2026. Not independently verified — treat as the supplier’s own marketing claims.
Buyer references
Named public-sector contacts who have agreed to act as a reference.
No buyer references yet
Public-sector buyers can confirm they'll act as a reference for this supplier. Confirmed references — with the contract they relate to — show here.
Accreditations & memberships · 8
Credentials listed on the supplier’s website. Not yet checked against issuer registers.
Extracted automatically from seamans.co.uk on Jul 2026. Not independently verified — treat as the supplier’s own marketing claims.
KPI performance
Delivery, budget and satisfaction scores reported quarterly by buyers.
No verified KPI scores yet
Once buyers report contract KPIs — delivery on time, on budget, satisfaction, adoption and accessibility — a weighted grade and breakdown appear here.
Contracts · 3 live · 3 historic
Pulled from Contracts Finder & Find a Tender. Most recent first.
| Title | Buyer | CPV | Awarded | Value | Term | Status |
|---|---|---|---|---|---|---|
| Broadland Development Services Limited | 45000000 | 10 Feb 2026 | £13.6m | 4 yrs | Live | |
| Essex County Council | 45000000 | 01 Mar 2020 | £12.5m | 4 yrs | Closed | |
| West Suffolk NHS Foundation Trust | 45453000 | 01 Feb 2017 | — | 2 yrs | Closed | |
| Essex County Council | 45000000 | 01 Mar 2016 | — | 4 yrs | Closed | |
| Broadland Development Services Limited | 45000000 | — | — | — | Live | |
| Mid Suffolk District Council | — | — | — | — | Live |
Top buyers · 4 buyers · top 3 = 100%
Share of awarded value. Concentration fires above 40% for any single buyer.
Category mix
CPV-division share of last-12m awarded value. Single-category exposure: 100%.
Geography
Distribution of awarded value by buyer region.
Peers
Suppliers with overlapping CPVs & buyers (last 24m). O. SEAMAN & SON LIMITED highlighted.
| Supplier | SME? | Awarded · 24m | Contracts |
|---|---|---|---|
| Yes | £35.4m | 2 | |
| No | £28.1m | 2 | |
| No | £18.8m | 2 | |
OS O. SEAMAN & SON LIMITED | Yes | £13.6m | — |
| No | £12.5m | 1 | |
| No | £11.0m | 1 |
Red flags · 0 active
Automated scan of Companies House status, charges and insolvency records.
Compliance scorecard
Derived from Companies House filings — not a full supplier-assurance check.
Modifications
Variations to awarded contracts logged under Procurement Act 2023 s.74.
No modifications recorded
No published contract variations for this supplier. Modification notices appear here as they are issued under the Procurement Act 2023.
News mentions
UK trade press & nationals, matched to this supplier.
No news mentions found
We haven't matched any recent UK press coverage to this supplier. Mentions appear here automatically as they're published.
Companies House
Live sync — registered details, directors, PSC and SIC codes.
Registered details
- Company no.
- 01237050
- Status
- Active
- Type
- Private limited
- Incorporated
- 10 Dec 1975
- Reg. office
- Prospect House Great Green, Thurston, Bury St. Edmunds, Suffolk, IP31 3SH
- SIC codes
- 41100
- Last accounts
- 31 Mar 2025
- Next accounts due
- 31 Dec 2026
Directors & PSC
- REASON, Mark James — directorAppointed 01 Sept 2023
- LONG, Darryl — directorAppointed 09 Sept 2014
- LONG, Darryl — secretaryAppointed 20 Sept 2013
- HAYDON, Duncan Michael Eric — directorAppointed 01 Feb 1999
- Seamans Group Limited — person with significant controlownership of shares 75 to 100 percent
Financial
Filed accounts from Companies House.
No financial filings on record
Turnover, profit and headcount appear here once audited or micro-entity accounts are filed at Companies House.
Org tree
Group structure and ownership.
Independent. No parent company or subsidiaries recorded at Companies House for this entity.
Social value
Commitments mapped to the Government Social Value Model themes.
No social-value commitments yet
Jobs, skills, environmental, inequality and community commitments appear here once a claimed supplier attributes them to awarded contracts, or once we detect them on the supplier’s website.