BOULDER - Eight of the 13 companies in Colorado that received venture capital during the third quarter are based in the Boulder Valley.

The eight private companies received a total of  $35.7 million while the state collected $50.3 million on 13 deals in the quarter ending June 30, according to the MoneyTree Report compiled by PricewaterhouseCoopers and the National Venture Capital Association.

Boulder-based Aztek Networks Inc., co-founded by J. Mark Elder and Pete Ruether, is a maker of voice-switching products for the telecommunications industry. The company led the way locally receiving $10,050,000 in a later-stage round of funding from several groups including Grotech Ventures, Kinetic Ventures LLC, Sequel Venture Partners, Telecommunications Development Fund and UV Partners.

Others receiving funding, the amount and sources, according to the report:

Pharmaca Integrative Pharmacy, Boulder; $6,555,100; Highland Capital Partners LLC, Physic Ventures and two undisclosed firms.

OneRiot Inc., Boulder; $6,705,000; Apian Ventures, Commonwealth Capital Ventures, Spark Capital.

Tri-US LLC, Boulder, $6 million; Highland Capital Partners LLC.

Copan Systems Inc., Longmont; $3,027,000; FirstMark Capital LLC, Westbury Partners.

Mocapay Inc., Boulder; $3 million; Lacuna LLC and two undisclosed firms.

Crosstrees Medical Inc., Boulder; $1,333,000; Rho Ventures.

Next Big Sound Inc.; $18,000; Foundry Group.

For the quarter nationally, $4.8 billion was invested in 637 companies. California led the way with 277 deals worth $2.7 billion.