Stella Davis at law firm SPW confirmed the company is insolvent as it "owes money to companies and people".
The Easter weekend raid saw thieves drill a hole into a vault before ransacking 73 safety deposit boxes.
Nine men are due in court on 4 September charged with conspiracy to burgle.
They are also charged with conspiracy to conceal or transfer the jewellery.
Hatton Garden Safe Deposit, which had up to £200m of jewellery stolen in April, has gone into liquidation.