# SEP Professional Services Limited

## Details

- **Company number:** [10139700](https://find-and-update.company-information.service.gov.uk/company/10139700)
- **Status:** Active
- **Type:** Private Limited Company
- **Incorporated:** 21 Apr 2016
- **Registered office:** 12 Princes Dock, Floor 2, Liverpool, Merseyside, L3 1DG
- **Nature of business:** [71129](/sic/71129) Other engineering activities



## Officers

| Name | Role | Appointed | Resigned |
|---|---|---|---|
| BROWN, Michael David | director | 29 Apr 2026 |  |
| COSTELLO, Anthony Thomas | director | 29 Apr 2026 |  |
| SIADANKAY, Karl | director | 4 Apr 2023 |  |



## Control

| Name | Nature of control | Notified | Ceased |
|---|---|---|---|
| Mr. Joseph Johnson | significant-influence-or-control | 1 May 2016 | 28 Apr 2020 |
| Mr David William Stafford | ownership-of-shares-25-to-50-percent | 10 May 2018 | 19 Mar 2026 |
| Mr Karl Siadankay | ownership-of-shares-25-to-50-percent | 1 Dec 2023 |  |



## Accounts

| Year ended | Turnover | Net assets | Cash | Employees |
|---|---|---|---|---|
| 30 Jun 2025 | - | £1,938,743 | £604,432 | 14 |
| 30 Jun 2024 | - | £1,742,392 | £241,683 | 0 |
| 31 Dec 2022 | £11,195,714 | £1,816,861 | £493,767 | 13 |
| 31 Dec 2021 | £7,932,885 | £1,939,950 | £4,175,962 | 17 |
| 31 Oct 2020 | £6,275,749 | £1,722,092 | £884,171 | 17 |
| 31 Oct 2019 | £8,000,908 | - | £1,284,666 | 8 |
| 31 Oct 2018 | £8,642,153 | - | £1,311,525 | 8 |
| 31 Oct 2017 | £4,549,585 | - | £10,131 | 4 |





## Directors' other companies

- [COSTELLO, Anthony](/person/6220330) - director at [Mags Procurement Services Limited](/company/17465969)
- [SIADANKAY, Karl](/person/5398231) - director at [L S Marketing Nw Limited](/company/11217421)
- [SIADANKAY, Karl](/person/5398231) - director at [Klcc Properties Limited](/company/17408452)
- [SIADANKAY, Karl](/person/5398231) - director at [Taylor Management & Consulting Limited](/company/10856960)



## Companies at the same address

- [SEP Resource Solutions Limited](/company/12185457) (12185457)