Cybersecurity asset management startup Axonius has raised $20 million in its second round of funding this year.

Venture capital firm OpenView led the Series B, joining existing investors in bringing $37 million to date following the startup’s $13 million Series A in February.

The security startup, founded in 2017, helps companies keep track of their enterprise assets, such as how many clouds, computers and devices are on their network. The logic goes that if you know what you have — including devices plugged into your network by employees or guests — you can keep track and discover holes in your enterprise security. That insight allows enterprises to enforce security policies to keep the rest of the network safe — like installing endpoint security software, or blocking devices from connecting to the network altogether.

Axonius’ co-founder and chief executive Dean Sysman said the company takes a different approach to asset management.

“You can’t secure what you don’t know about,” he told TechCrunch. “Almost everything you’re doing in security relies on a foundation of knowing your assets and how they stack up against your security policies. Once you get that foundation taken care of, everything else you do will benefit,” he said.

Instead, Axonius integrates with more than a hundred existing security and management solutions to build up a detailed picture of an entire organization.

Clearly it’s a strategy that’s paying off.

The company already has big-name clients like The New York Times and Schneider Electric, as well as a handful of customers in the Fortune 500.

Sysman said the bulk of the funding will go toward the expansion of its sales and marketing teams, but also the continued improvement and development of its product. “We’re hitting the gas and continuing to bring our solution to as many organizations in the market as we can,” he said.

Axonius said OpenView partner Mackey Craven, who focuses on cloud computing and enterprise infrastructure companies, will join the board of directors following the fundraise.