Company
Hack the BOX LTD
Hack the BOX LTD is an active UK company (number 10826193), incorporated 2017, with 4 current directors including Nikos Fountas and Gibbuda Emmett Witham. Source: Companies House, updated 11th October 2026.
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Official record Companies House · updated 11th October 2026 · Sources · Free, no card or password
Network
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Who leads it
Previous officers 3
- Ioannis Tsakatanis 2023-2025 View profile
- Georgios Tziralis 2019-2022 View profile
- Aristomenis Zikopoulos 2019-2023 View profile
Directors and secretaries as filed at Companies House.
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Public contracts won
1 contractFrom Contracts Finder and Find a Tender, the UK Government's public procurement notices, under the Open Government Licence v3.0. Matched to this organisation by company number, charity number or exact name and postcode; every figure links to its source notice.
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Framework
About
- Incorporated
- 20/06/2017
Ownership
Owned by (3) iOwned byIndividuals and companies registered as having significant control over this company, from the Companies House PSC (persons with significant control) register. People whose ownership could not be confirmed to one individual are not listed as confirmed owners.
- Charalampos Antonios Pylarinos ceased 2022-12-28
25-50% shares, 25-50% voting · notified 2017-06-20 - Octachoron Bidco Limited
75-100% shares, 75-100% voting, appoints directors · notified 2022-12-29 - Octachoron Topco Limited ceased 2022-12-29
75-100% shares, 75-100% voting, appoints directors · notified 2022-12-28
Group
- Hack the BOX LTD
is controlled by Charalampos Antonios Pylarinos
Evidence
ceased 25-50% shares, 25-50% voting · notified 2017-06-20, ceased 2022-12-28 · source: Companies House PSC register
Ultimately controlled by Charalampos Antonios Pylarinos.
1 other company in this group
- 11766664 (no longer on the register)
Ownership paths are calculated from Companies House persons-with-significant-control filings. Each step shows the filed nature of control and dates; a step marked "ceased" is historical, not current.
Board analysis
Board DNA
How this board is put together, from the Companies House officer record and Charity Commission trustee records - deterministic, no AI.iBoard compositionCounted from the dated Companies House officer record: the current directors only, past directors excluded.
4 directors on the board
- Gibbuda Emmett Witham Director · appointed 2020
- Nikos Fountas Director · appointed 2023
- James Hooker Director · appointed 2019
- Charalampos Antonios Pylarinos Director · appointed 2017
Directors past 6 years
- James Hooker Director · appointed 2019
- Charalampos Antonios Pylarinos Director · appointed 2017
First-time vs portfolio directors
First-time (1)
- Gibbuda Emmett Witham Director · appointed 2020
Portfolio (3)
- Nikos Fountas Director · appointed 2023
- James Hooker Director · appointed 2019
- Charalampos Antonios Pylarinos Director · appointed 2017
Left in the last 12 months
- Ioannis Tsakatanis Director · appointed 2023 · resigned 2025
Where else this board sits iWhere else this board sitsThe charitable fields these directors govern in elsewhere, by Charity Commission classification. Excludes this company and any charity it is the legal face of.
The sectors these directors govern in elsewhere. This company, and any charity it is the legal face of, are excluded - counting them would just tell you what you are already looking at.
Gaps to watch
- Several long-serving directors could step down together
- Narrow spread of sectors across the board
Where to look Suggested search: succession planning for long-tenured seats; directors from a wider range of sectors.
Sources
Official record from Companies House. Governance Register calculates the connections.
Record details
- Company number
- 10826193
- Status
- Active
- Type
- Private Limited Company
- Edition
- Register edition compiled 11th October 2026
- Labels
- Official record from Companies House · Calculated derived by Governance Register.
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