Redworth Construction in Norton, North Yorkshire, is understood to have collapsed, after facing a compulsory winding up order.
All 30 staff have been laid off after creditors refused to accept a plan which may have been a lifeline for the company.
Chief executive Howard Rogers told the York Press: “We wanted to go in to a Company Voluntary Arrangement which meant an independent company would come in and look at the business and the cash flow.
“But we didn’t achieve the full support of the creditors so we had to cease trading. I believe we could have traded for another two years, but our creditors didn’t think so – that’s why we are in the situation we are in."
Redworth, which specialised in care homes, reported a turnover of £30m in 2008.
Redworth had just begun work on a new £5m headquarters in Old Malton at Manor Farm. The future of that project is now uncertain.