MINNEAPOLIS, MN — Northstar Capital (“Northstar”), a provider of junior capital for middle market private equity transactions, is pleased to announce its investment in Black Diamond Networks (“Black Diamond”), a portfolio company of Tenex Capital Management (“Tenex”).

Black Diamond is a provider of professional staffing solutions exclusively focused on scarce, high-end skill sets in advanced technical fields, specializing in life sciences and engineering and technology sectors. Founded in 1999, Black Diamond has offices in Andover, MA, Palm Beach Gardens, FL, and Phoenix, AZ. For more information on Black Diamond, please visit www.blackdiamondnet.com.

Northstar provided debt and an equity co-investment to help Tenex finance the transaction. The Northstar team remains committed to partnering with experienced management teams and private equity sponsors to help good companies become even better. Black Diamond is the eighteenth platform investment in Fund VII, a $500 million committed parallel fund strategy consisting of Northstar Mezzanine Partners VII L.P. and Northstar Mezzanine Partners SBIC L.P.

About Northstar Capital

Northstar Capital is an investment management company with offices in Minneapolis, Minnesota and Fargo, North Dakota. Northstar specializes in junior capital investments and equity co-investments in middle-market companies. Since inception, Northstar has partnered with more than 150 companies and raised nearly $2 billion in capital. Northstar invests in a diverse range of industries, including healthcare, industrials, consumer, business services, food and agriculture, outsourcing, and distribution. For more information, please visit www.northstarcapital.com.

About Tenex Capital Management

Tenex Capital Management is a private equity firm that invests in middle market companies. Tenex uses an in-house team of hybrid investment professionals skilled in operational leadership, investing, and capital markets structuring to maximize long-term value creation. Tenex’s deep operating experience allows the firm to collaborate with management teams to capitalize on business and market opportunities. For additional information, please visit www.tenexcm.com.