Venture capitalists are seeing dollar signs in legal technology—and they're not just pouring money into industry newcomers. Vista Equity Partners has a history of investing in legal technology companies, most notably Aderant and Mitratech. Recently, the company launched its Endeavor Fund, which focuses exclusively on enterprise software and data businesses under $30 million in revenue. And to kick off the fund, it has once again returned to the legal tech well.

On May 16, e-discovery company Zapproved announced that it has selected Vista Equity Partners for a strategic investment in the company, and Zapproved will become the first company in the new Endeavor Fund. Financial details of the investment were not disclosed.

Zapproved is known for its Z-Discovery Platform suite of products, most notably the ubiquitous legal hold software Legal Hold Pro. The suite also includes collection and discovery capabilities, and Zapproved's products are primarily targeted at the in-house corporate market.