Company

GSO Limited

How am I connected?

Official record Companies House · updated 27th September 2026 · Sources

Network

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Who leads it

Previous officers 3

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Samantha Jane Osborne 2013-2024 Director View profile
Christopher Joseph Martin Gilbey 2013-2024 Director View profile
David Andrew Sage 2013-2013 Director View profile

Directors and secretaries as filed at Companies House.

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Public contracts won

4 contracts · £5,583,474 total

From 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.

Bishop Vesey’s Grammar School ~ Cleaning Tender Buyer: Bishop Vesey’s Grammar School £1,230,000 2026-02-23 Source: Find a Tender
The successful Supplier will be required to provide cleaning services for Bishop Vesey’s Grammar School. The contract being tendered is for three years in duration from 1 April 2026 until 31 March 2029, with the option to extend for a furth…
Joseph Chamberlain Sixth Form College ~ Cleaning Tender Buyer: Joseph Chamberlain Sixth Form College £1,908,000 2026-02-13 Source: Find a Tender
The successful Supplier will be required to provide cleaning services for Joseph Chamberlain Sixth Form College (1 Belgrave Rd, Birmingham B12 9FF). The contract being tendered is for three years in duration from 1 April 2026 until 31 Marc…
ACES Academies Trust ~ Cleaning Tender Buyer: Aces Academies Trust £2,445,474 2025-06-12 CPV 90919300 Source: Contracts Finder
ACES Academies Trust currently comprises one large secondary School (Hinchingbrooke School) and four primary school (Cromwell Academy, Godmanchester Bridge Academy, Godmanchester Community Academy and Spaldwick Primary school), all situated…
Robin Hood Multi Academy Trust - Cleaning Services Tender Buyer: Robin Hood Multi Academy Trust Value not published Date not published Source: Find a Tender
At Robin Hood Multi Academy Trust, Staff believe in showing children that they can overcome any obstacle in their lives to go on and become something truly great. The Trust firmly believe that the biggest barriers in life are the ones we pl…

About

Incorporated: 10/01/2013

Ownership

Owned by (5) 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.

Samantha Jane Osborne ceased 2024-04-06
25-50% shares · notified 2016-04-06 - confirmed: also a director of this company
Christopher Joseph Martin Gilbey ceased 2024-04-06
25-50% shares · notified 2016-04-06
George Osborne ceased 2024-04-06
25-50% shares · notified 2024-04-06 - confirmed: also a director of this company
Marcus Alexander Gray ceased 2024-04-06
25-50% shares · notified 2024-04-06
Osgr Limited
75-100% shares · notified 2024-04-06

Group

GSO Limited is controlled by Samantha Jane Osborne
Evidence
ceased 25-50% shares · notified 2016-04-06, ceased 2024-04-06 · source: Companies House PSC register

Ultimately controlled by Samantha Jane Osborne.

1 other company in this group

Marchiss Limited

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.

Financials

Net assets: £1,229,758
Total assets: £1,284,703
Cash: £1,524,143
Employees: 745
Turnover: Not reported (small or micro-entity accounts)

Filed as Full accounts (audit exempt).

Five-year trend

Period ending	Turnover	Net assets
2026-03-31	Not reported	£1,229,758
2026-03-31	Not reported	£1,229,758

Figures from accounts filed at Companies House (iXBRL), period ending 2026-03-31. Where turnover is absent, small and micro-entity accounts are not required to report it, so it is not shown as zero.

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.

2 directors on the board

George Osborne Director · appointed 2024
Marcus Alexander Gray Director · appointed 2024

2.3y median 2.3y

average tenure

2.3y

longest tenure

directors past 6 years

First-time vs portfolio directors

Portfolio (2)

George Osborne Director · appointed 2024
Marcus Alexander Gray Director · appointed 2024

also govern a charity

left in the last 12 months

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.

Professional services 2Tech and media 1

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.

Sources

Official record from Companies House. Governance Register calculates the connections.

Record details

Company number: 08355246
Status: Active
Type: Private Limited Company
Edition: Register edition compiled 27th September 2026
Labels: Official record from Companies House · Calculated derived by Governance Register.

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