Venture Investors announced recently that it closed its $75 million fund called Venture Investors Health Fund 6 Limited Partnership.

According to a release, the fund has made four investments, including in Madison-based Invenra, though no financial details were provided.

“Three out of the first four investments of our new fund are led by entrepreneurs we successfully backed before,” Managing Director Scott Button said in a statement. “Many of our advisors were a part of past portfolio companies. People are the most important part of this business.”

Venture Investors also announced that it opened an office in Milwaukee. In addition, Joe Amaral, MD, joined the company as chief medical and scientific advisor.