The race to gobble up midmarket e-discovery companies continues, and this time around, a company that has largely watched M&A activity from the sidelines is getting involved.

On April 10, Catalyst announced it had purchased a majority interest in TotalDiscovery, an e-discovery software provider that specializes in legal hold and data collection software. The deal will primarily be used to expand Catalyst’s core offering to provide an integrated program, Insight Discovery, that spans the EDRM from legal hold and identification through collection, processing, search, analytics, review and production.