Zenoss has raised $25 million through a Series C funding round, the company announced today.

The additional investment was led by well known growth equity investor Summit Partners, although existing investors Grotech Ventures, Intersouth Partners and Boulder Ventures also took part.

It means the company has raised a total of $45 million to date.

Zenoss is a provider of unified IT operations software for physical, virtual, and cloud-based IT infrastructures. Founded in 2005, the company says it was created to “address the challenges of operating and assuring large-scale IT services.”

So far Zenoss has been used in more than 35,000 businesses scattered over 180 different countries. Some of their more recognisable clients include LinkedIn, Rackspace, Deutsche Bank and a number of government agencies, including the US Army and US Marines.

Day-to-day the company offers an IT operations platform that includes unified monitoring, scale event management, real-time service imapct/root cause analysis, and automated remediation. Built on open-source software, it has been downloaded 2.4 million times by companies looking to cut down on the number of tools they use operationally, and also automate more of their work.

Summit Partners is a well known backer of developing firms includingthe high-end shopping club WestWing, data management solutions Delphix, and fashion retailer Zalora. Tom Jennings, a Managing Director of Summit Partners, will be joining Zenoss’ Board of Directors following the latest funding round. He said:

“Zenoss is unique because it has been purposely built for managing virtual and cloud-based infrastructures on top of legacy environments.

The company’s value proposition to customers, rapid growth and recurring revenue reminds us of many great software companies we have backed over the years.”

Zenoss says the Series C funding will be used to accelerate its “product innovation” and global expansion, as it continues to support its own rapid growth and demand from clients.

Bill Karpovich, co-founder and CEO of Zenoss, said:

“This raise will help fuel continued innovation, community expansion and growth of our commercial business.

We are delighted to have Summit Partners join the team as their experience and success with rapidly-growing companies makes them the ideal partner for Zenoss at this stage of the company’s growth.”

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