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O. SEAMAN & SON LIMITED
Company number 01237050 · Private Limited Company · Active. Its ownership runs 1 layer up, from its confirmation statements at Companies House.
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Ownership chart
O. SEAMAN & SON LIMITED's ownership structure
Owners above, the companies it holds below, from confirmation statements filed at Companies House.
Company report
The full company report on O. SEAMAN & SON LIMITED
The company report shows every shareholder and holding with stakes, layer by layer, the directors and their other companies, accounts, charges and insolvency history, and multiple layers of shareholders and directors found in 23 European countries. Ready in 24 hours, or 2 days for the global check, sent to your email.
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Register details
Company facts
- Company number
- 01237050
- Status
- Active
- Company type
- Private Limited Company
- Incorporated
- 10 December 1975
- Registered office
- Bury St. Edmunds, Suffolk
- Country of origin
- United Kingdom
- Business
- Development of building projects
- Latest accounts type
- Full
- Shareholder layers
- 1
Company details from the Companies House register of 1 September 2026.
At a glance
O. SEAMAN & SON LIMITED's ownership
- Its latest confirmation statement with a shareholder list (22 August 2024) lists 1 shareholder: 1 company.
From confirmation statements filed at Companies House up to 19 June 2026. Shareholdings can change at any time: check the current position live before relying on it.
Shareholders · 1 layer
Who owns O. SEAMAN & SON LIMITED
O. SEAMAN & SON LIMITED's shareholders as listed in its latest confirmation statement, then the shareholders of each shareholder that is a UK company, layer by layer.
Every shareholder, layer by layer (1)
Layer 1
Shareholders of O. SEAMAN & SON LIMITED · statement of 22 August 2024
| Shareholder | Stake | Shares | Class |
|---|---|---|---|
| SEAMANS GROUP LIMITED Company 13253900 | — | 350,000 | ORDINARY |
People with significant control · 1 current
Who controls O. SEAMAN & SON LIMITED
O. SEAMAN & SON LIMITED's people with significant control as registered at Companies House on 12 November 2026: 1 current and 1 former. They are the people and companies that hold more than 25% of its shares or voting rights, or otherwise control it.
Current (1)
| Name | Nature of control | Notified | Details |
|---|---|---|---|
| Seamans Group Limited | Shares: 75% or more | 9 March 2021 | Company · Company Limited By Shares |
Former (1)
| Name | Nature of control | Notified | Ceased |
|---|---|---|---|
| Haydon Holdings Ltd | Shares: 75% or more | 1 July 2016 | 9 March 2021 |
Officers · 4 current
Who runs O. SEAMAN & SON LIMITED
O. SEAMAN & SON LIMITED's directors and secretaries as registered at Companies House on 12 November 2026: 4 current and 7 former.
Current officers (4)
| Name | Role | Appointed | Nationality | Country of residence |
|---|---|---|---|---|
| LONG, Darryl | Secretary | 20 September 2013 | — | — |
| HAYDON, Duncan Michael Eric | Director | 1 February 1999 | British | United Kingdom |
| LONG, Darryl | Director | 9 September 2014 | British | England |
| REASON, Mark James | Director | 1 September 2023 | British | England |
Former officers (7)
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| HALL, Martin Ian | Secretary | before 22 August 1991 | 20 September 2013 |
| HALL, Martin Ian | Director | before 22 August 1991 | 20 September 2013 |
| HART, Lewis William | Director | before 22 August 1991 | 31 December 1997 |
| HAYDON, Michael John | Director | before 22 August 1991 | 1 September 2020 |
| REASON, Steven Russell | Director | before 22 August 1991 | 29 January 2021 |
| TURNER, Michael | Director | 29 January 2021 | 31 August 2023 |
| WHATLING, Benjamin | Director | 29 January 2021 | 1 April 2026 |
Explained
How this chart is built
Every UK company files a confirmation statement with Companies House at least once a year, and private companies list their shareholders in it. The chart takes each company's latest statement with a shareholder list and follows every shareholder that is itself a UK company to that company's own statement, layer by layer. Holdings work the other way: every company whose latest statement lists the company as a shareholder, then the companies those hold.
A stake is the share of the company's issued shares, weighted by nominal value where the statement gives it. Each statement shows the position on its own date. Shareholders are matched to UK companies by their registered names, so a holder can occasionally be matched to the wrong company or not matched at all.
Live lookup
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