Glassdoor, which compiles compensation data on tens of thousands of companies, is getting its very own payday. The Sausalito, California-based company, led by former Expedia executive Robert Hohman and backed by Zillow co-founder Rich Barton, today is announcing $20 million in new funding from DAG Ventures; Benchmark Capital, Sutter Hill Ventures and Battery Ventures. Total funding now stands at $42.2 million.

The company also announced that it has more than 14 million registered users, with a new user signing up for the community every two seconds.

Barton, who worked with Hohman at Expedia, has used Glassdoor as a classic example of a company that plays into his investment thesis of  unlocking data that had previously been difficult to obtain. That’s a philosophy that Barton has used successfully at Zillow in the online real estate business.

Glassdoor collects salary information for individual employers, pitting it against the likes of Seattle-based PayScale.

Glassdoor is growing rapid, with 13 million unique visitors checking out the salary information each month. Interestingly, that’s a bigger user base than what Zillow had achieved at the four-year juncture. (Zillow’s unique user count stood at 33.5 million for the second quarter).

“Glassdoor, fueled by increasing workplace transparency, is changing the way people search for jobs and the way employers recruit and retain top talent,” said Hohman in a press release. “Thanks to DAG Ventures and our esteemed roster of venture capital partners, this latest round of funding will help us build even more products and resources for all those in the employment space.”

Glassdoor plans to use the new cash for international expansion and new products.

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