Supersonic jet startup raises $100 million

Boom recently raised $100 million, with California-based Emerson Collective leading last week’s round. (Courtesy of Boom)

Colorado startups raised $58 million in December.

But within the first few days of the new year, one startup raised nearly twice as much in just one round.

Boom Supersonic, a startup looking to build commercial supersonic jets, raised $100 million last week, according to a Form D filed through the SEC.

The filing said 53 investors contributed to the round. Boom recently moved into its new headquarters near Centennial Airport. The company aims to start building its supersonic prototype this spring.

California-based Emerson Collective led Boom’s Series B round of funding, which also included investment from Y Combinator Continuity, Caffeinated Capital and SV Angel, according to a news release.

Overall in December, Denver startups raised $7.7 million and Boulder startups raised $20.5 million, according to SEC filings. Colorado startups located outside of those two hubs raised $30 million.

BusinessDen defines a startup as a company 10 years or younger, excluding publicly traded companies, funds and real estate ventures.

All Colorado companies, including non-startups, raised a total of $128 million in December.

Here is a roundup of all the Colorado companies raising money last month.

Here’s more BusinessDen coverage of companies that raised money in December:

sphero BB-8

Misty Robotics raised $12 million in funding for its robotic toys. (Misty Robotics/Sphero)

Misty Robotics, a spinoff of Boulder’s robotic toy company Sphero, raised $11 million.

Mycotechnology, an Aurora startup making food supplements out of mushrooms, raised $7 million.

Brandfolder, a Denver-based brand management startup, raised at least $2.5 million.

Holton, a Denver startup making plus-sized men’s clothing, raised $335,000.

Alpine Media Technology, a startup making digital screens for chairlifts, raised at least $275,000.

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