San Diego cleantech startup Measurabl will be starting the new year with a little more green.

The company, which builds software to help real estate companies track the environmental impact of their buildings, raised $18.29 million in a Series B round, according to a Dec. 28 filing with the Securities and Exchange Commission.

That’s on top of the $7 million the company raised in an April Series A round, led by Washington D.C. -based venture capital firm Camber Creek. Measurabl’s other investors include Building Ventures, Salesforce Ventures, Impact Engine, DivcoWest and Crosscut Ventures.

In a blog post, Measurabl’s founder and CEO Matt Ellis confirmed the company had raised additional funding, though he did not name the investor. He said the company would use the funds to grow its headcount in the U.S. and Europe; it currently has job postings in San Diego and London. The company will also use the funds to expand into Asia-Pacific region, for research and development, and for its partner program.

Measurabl has been growing quickly since Ellis, a former director of sustainability solutions for CBRE, founded it in 2013. The company grew from 17 employees in 2017 to 40 employees in 2018. Its clients manage nearly 7 billion square feet of property, including 1 billion from outside the U.S.