BOULDER – The founders of Boulder accelerator and co-working space Boomtown have raised $1 million for a new pooled investment fund, according to a filing with the Securities and Exchange Commission this week.

Officials for Boomtown couldn’t be reached Friday.

Boomtown launched last year as an accelerator geared toward tech startups focused on media design, marketing and advertising technology. It was founded by former Crispin Porter + Bogusky principal Alex Bogusky and other media and technology veterans including Toby Krout, Jose Veitez and Stephen Groth.

Based at 2060 Broadway in downtown Boulder, the accelerator started out operating in the Scrib coworking space, which was co-founded by Krout and eventually rebranded as Boomtown.

Boomtown has completed two cohorts of startups, with a third slated for demo day on May 15. The accelerator gives startups $20,000 and offers a 12-week mentorship program in exchange for a 6 percent equity stake in the companies.

A total of 15 investors participated in latest fundraising by Boomtown, according to the SEC filing.