# Chiron Bidco Limited

## Details

- **Company number:** [10397327](https://find-and-update.company-information.service.gov.uk/company/10397327)
- **Status:** Active
- **Type:** Private Limited Company
- **Incorporated:** 27 Sep 2016
- **Registered office:** UNIT 1A-1B MILLENNIUM WAY, PRIDE PARK, DERBY, DE24 8HZ
- **Nature of business:** [82990](/sic/82990) Other business support service activities n.e.c.
- **Corporate group:** [Atten Group Limited](/group/24732) (15 companies)



## Officers

| Name | Role | Appointed | Resigned |
|---|---|---|---|
| LUPAS, Sergiu Andrei | director | 23 Sep 2026 |  |
| GRAFTON, Mark David | director | 21 Aug 2025 |  |



## Control

| Name | Nature of control | Notified | Ceased |
|---|---|---|---|
| Chiron Midco Limited | ownership-of-shares-75-to-100-percent | 27 Sep 2016 |  |
| Bowmark Capital Llp | significant-influence-or-control, significant-influence-or-control-as-trust | 4 Oct 2016 | 27 May 2018 |
| Bowmark Gp Llp | significant-influence-or-control-as-trust | 4 Oct 2016 | 6 Oct 2016 |




## Owned by

Chiron Bidco Limited → [Chiron Midco Limited](/company/10397142) → [Atten Bidco Limited](/company/13224647) → [Atten Finance Limited](/company/13219813) → [Atten Midco Limited](/company/13216244) → [Atten Group Limited](/company/13214114)



## Controls

- [Node 4 Holdings Limited](/company/08519735) (08519735)



## Directors' other companies

- [GRAFTON, Mark David](/person/8707382) - director at [Onomi Limited](/company/09252861)
- [GRAFTON, Mark David](/person/8707382) - director at [Chiron Midco Limited](/company/10397142)
- [GRAFTON, Mark David](/person/8707382) - director at [Secura Hosting Ltd](/company/04330657)
- [LUPAS, Sergiu Andrei](/person/8605462) - director at [TNP Holdco Limited](/company/07808865)
- [LUPAS, Sergiu Andrei](/person/8605462) - director at [Tisski Limited](/company/07751400)
- [LUPAS, Sergiu Andrei](/person/8605462) - director at [Vedbaek Limited](/company/06858712)
- [LUPAS, Sergiu Andrei](/person/8605462) - director at [Secura Hosting Ltd](/company/04330657)
- [LUPAS, Sergiu Andrei](/person/8605462) - director at [Atten Midco Limited](/company/13216244)
- [LUPAS, Sergiu Andrei](/person/8605462) - director at [Chiron Midco Limited](/company/10397142)
- [LUPAS, Sergiu Andrei](/person/8605462) - director at [TNP Topco Limited](/company/11331010)



## Companies at the same address

- [Atten Bidco Limited](/company/13224647) (13224647)
- [Atten Finance Limited](/company/13219813) (13219813)
- [Atten Group Limited](/company/13214114) (13214114)
- [Atten Midco Limited](/company/13216244) (13216244)
- [Chiron Midco Limited](/company/10397142) (10397142)
- [Coburn Holdings Limited](/company/13938393) (13938393)
- [Ensco 1032 Limited](/company/08807430) (08807430)
- [Node 4 Holdings Limited](/company/08519735) (08519735)
- [Node 4 Limited](/company/04759927) (04759927)
- [Onomi Limited](/company/09252861) (09252861)