Company was bought by a VC group with no experience in the industry. They spent their resources in all the wrong places, leading to alienated employees with no morale. They were also behind on office rental payments.
We had no formal IT or standard laptop hardware or software. One team decided they were all done after their director left. The CEO decided that they were colluding and fired them all at once. Nobody else was cleared for that project's SCIF, meaning nobody could contact the customer over secure channels. Additionally, their drives were encrypted with personal passwords that were never turned over as the employees had no proper exit process.
Between that and my team slowly leaving due to morale, they lost 2/3 of the few contracts they had, along with the technical expertise responsible for them.