The firm declined to say how many staff had lost their jobs.
Trillium insisted the move was not linked to its recent sale by Land Securities to property group Telereal.
A spokeswoman said: вЂњThese redundancies are part of a long-term strategy that was put in place in November, before the sale, to ensure that resource levels within Trillium reflect market conditions and avoid expensive and lengthy bidding processes that do not offer sufficient return on investment in a reasonable time.вЂќ
She said it would not affect existing customers.
Trillium won the ВЈ1.8bn Kent County Council Building Schools for the Future scheme in October last year. Last week it lost out to Catalyst Lend Lease on the ВЈ2.4bn Birmingham Building Schools for the Future deal. It recently pulled out of bidding for all other BSF schemes and in November last year pulled out of the consortium Metrix, which is preferred bidder on the ВЈ12bn MOD Defence Training Programme PFI scheme.
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