Figures reveal some firms may be making up to 30% profit on Home Office contracts

This article is more than 1 year old

This article is more than 1 year old

The Home Office has paid a handful of private contractors hundreds of millions of pounds to run the UK’s immigration removal centres, but no one knows for certain just how profitable the industry is.

One of the 10 UK facilities is run by Her Majesty’s Prison and Probation Service, but the rest are contracted out to outsourcing firms G4S, Mitie, Serco and the US-owned GEO Group.

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Commercial confidentiality agreements mean the Home Office and outsourcing companies are not obliged to publish detailed financial information about immigration detention centres in the UK.

But figures released under freedom of information laws and published on the government’s Contracts Finder website show the value of some contracts when they were awarded.

Earlier this year, Mitie won what is believed to be the largest immigration detention contract ever awarded, valued at more than £500m. The contract will cover a range of services and it is not known how much of this is for management of removal centres.

The profitability of detention facilities has proved to be a contentious issue for the contractors.

A Guardian investigation last year pointed to a 20.7% profit margin at the G4S-owned Brook House in 2016, while at Tinsley House the margin was 41.5%.

Both figures appeared to be above the agreed margin set out in the contracts. The G4S executive, Peter Neden, refused to divulge the true margin to a parliamentary committee after the allegations emerged.

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GEO Group, which operates Dungavel House, Scotland’s only detention centre, may be making up to 30% profits on its contract, according to an analysis by Corporate Watch.

Detention centre profits



Centre: Harmondsworth and Colnbrook

Contractor: Mitie

Date: September 2014-22

Value at award: £240m



Centre: Campsfield House

Contractor: Mitie

Date: May 2011-19

Value at award: £42m



Centre: Brook House

Contractor: G4S

Date: May 2009-18 extended to 2020

Value at award: £90.4m

Centre: Tinsley House

Contractor: G4S

Date: May 2009-18 extended to 2020

Value at award: £43.6m

Centre: Yarl’s Wood

Contractor: Serco

Date: 2015-23

Value at award: £69.9m



Centre: Dungavel House

Contractor: GEO Group

Date: 2011-19

Value at award: £45.2m

Source: Corporate Watch



