Houston, TX · Founded 1996 · Privately Held (backing)
Developer of business process optimization software intended for utilities and energy companies. VertexOne is based in Houston, TX and was founded in 1996. Its last reported valuation was $423 million in Mar 2007. It has raised $229 million.
These 2 firms already write checks for companies like VertexOne. Build the wider list: every firm that has backed a company like this one, ranked by how often and how recently.