The Term Sheet: Startup funding roundup for August 2025

Pax8 NewHQ Day1 05241 scaled

Pax8 signed a seven-year lease for 50,600 square feet in the Palazzo Verdi building. (Courtesy Pax8)

Funding for Colorado startups is cooling as we roll into fall.

Fledgling companies in the Centennial State tallied $139.5 million across 26 deals in August, SEC Form D filings show.

That’s down from the $257.4 million 28 businesses garnered in July and more in line with the $127 million that 26 firms raised in June.

Nine Denver-based startups pulled in $73.5 million while four Boulder-based companies took in $43.4 million. Thirteen businesses elsewhere in the Centennial State raised $30 million.

You can view our sortable spreadsheet, which lists every August Form D, here.

BusinessDen defines a startup as a business that’s less than 10 years old and excludes real estate ventures and funds. 

Here are some August highlights from BusinessDen’s startup coverage:

DEMI Fund goes dark

A venture capital firm backed by Denver taxpayers, which endured a public breakup with the city last year, missed a deadline to submit an audited financial statement to the city at the end of July.

What was given instead, according to a prominent local investor, is “laughable.”

“You would expect more from an eighth grade intern than what this fund provided,” said Justin Borus, who founded Denver-based Ibex Investors in 2003 and manages around $1 billion in investments. “If an eighth grade intern did that work, they’d be fired.” 

Greenwood Village tech firm gets new office

Though local software firm Pax8 trimmed some square footage in a move, its new south Denver HQ will be the ideal modern workplace, execs say.

“We want to create a place that facilitates connections in a mixed-use space,” Executive Vice President Lane Brannan told BusinessDen several weeks ago. “We’ll be able to house 50-person trainings to 300-person town halls. With things that we would normally reserve a hotel for, we think we can up the experience here in HQ.”

Odds and ends

Green Steel Environmental, a Boulder-based company that says it has a safer way to treat wastewater and biogas, raised a $1.7 million round last month. It was led by the Central Texas Angel Network, with participation from Fort Worth-based group Cowtown Angels.

Massive Ventures, a deep tech VC firm out of Boulder, announced an investment in Vescent Technologies. It is not clear how much Massive invested nor the size of the round for the Golden quantum infrastructure company. Last March, Vescent, founded in 2002, raised a $5 million round.

Pax8 NewHQ Day1 05241 scaled

Pax8 signed a seven-year lease for 50,600 square feet in the Palazzo Verdi building. (Courtesy Pax8)

Funding for Colorado startups is cooling as we roll into fall.

Fledgling companies in the Centennial State tallied $139.5 million across 26 deals in August, SEC Form D filings show.

That’s down from the $257.4 million 28 businesses garnered in July and more in line with the $127 million that 26 firms raised in June.

Nine Denver-based startups pulled in $73.5 million while four Boulder-based companies took in $43.4 million. Thirteen businesses elsewhere in the Centennial State raised $30 million.

You can view our sortable spreadsheet, which lists every August Form D, here.

BusinessDen defines a startup as a business that’s less than 10 years old and excludes real estate ventures and funds. 

Here are some August highlights from BusinessDen’s startup coverage:

DEMI Fund goes dark

A venture capital firm backed by Denver taxpayers, which endured a public breakup with the city last year, missed a deadline to submit an audited financial statement to the city at the end of July.

What was given instead, according to a prominent local investor, is “laughable.”

“You would expect more from an eighth grade intern than what this fund provided,” said Justin Borus, who founded Denver-based Ibex Investors in 2003 and manages around $1 billion in investments. “If an eighth grade intern did that work, they’d be fired.” 

Greenwood Village tech firm gets new office

Though local software firm Pax8 trimmed some square footage in a move, its new south Denver HQ will be the ideal modern workplace, execs say.

“We want to create a place that facilitates connections in a mixed-use space,” Executive Vice President Lane Brannan told BusinessDen several weeks ago. “We’ll be able to house 50-person trainings to 300-person town halls. With things that we would normally reserve a hotel for, we think we can up the experience here in HQ.”

Odds and ends

Green Steel Environmental, a Boulder-based company that says it has a safer way to treat wastewater and biogas, raised a $1.7 million round last month. It was led by the Central Texas Angel Network, with participation from Fort Worth-based group Cowtown Angels.

Massive Ventures, a deep tech VC firm out of Boulder, announced an investment in Vescent Technologies. It is not clear how much Massive invested nor the size of the round for the Golden quantum infrastructure company. Last March, Vescent, founded in 2002, raised a $5 million round.

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