Israeli-founded open source security management company WhiteSource has raised $35 million in a funding round led by Susquehanna Growth Equity, with participation by existing investors 83North and M12 (formerly known as Microsoft Ventures). This capital injection brings the total amount attracted by the company to $46 million.

WhiteSource works with enterprise customers to monitor and patch vulnerabilities in open-source modules that are used in their software solutions.

“We are now at a stage where the question is not whether or not to use open source components, but how to put in place the solutions and policies to manage them well,” said Rami Sass, co-founder and CEO of WhiteSource. “Microsoft’s acquisition of GitHub for $7.5 billion showcases that companies have accepted open source as crucial to the software development process, but incidents such as the Equifax data breach underscore the necessity for all companies to protect their products from attacks that would exploit the open source components they are using.”

The company has offices in New York, Boston, and Tel Aviv, and plans to open sales, marketing and customer support operations branches in London and San Francisco.

WhiteSource is the second Israeli-founded open source security company to raise a sizeable funding round. In late September, London-headquartered Snyk landed a $22 million Series B round to further develop a solution with a similar functionality.

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