Irvine-based Tech Coast Angels invested more than $10 million in 17 companies over the first half of this year.

Tech Coast Angels is an angel-investor group organized into five networks in Southern California, including OC, Los Angeles, San Diego, the Central Coast and the Inland Empire.

Its members provide funding and mentoring to early-stage companies.

Investments dipped slightly from the same period last year, when a total of $11.9 million was invested.

The number of companies getting funds stayed the same.

Among the companies that got money through Tech Coast Angels were Los Angeles-based mobile advertising startup PageWoo Inc., Valencia-based hydrogen sensor technology company H2scan Corp., and Hipmunk Inc., a travel search company in San Francisco.