Silicon Valley start-ups take perks to new level
Investors backing MuleSoft, including Lightspeed Ventures and SAP Ventures, favor the perks because they realize how competitive the hiring landscape is in the Valley.
"It is a relatively inexpensive component to the company. It's not cheap, but in the scheme of things investors know this is something that company has to have," Schott said.
Rusenko, whose backers include Sequoia Capital and Baseline Ventures, said the topic of perks doesn't really ever come up in discussion with Weebly's backers. Everything that the company offers is not out of the realm of reason, he said.
"It's not a massive cost, but we wouldn't be doing this if we were trying to penny pinch," Rusenko said. "We think each one of our perks has a very measurable return."
—By CNBC's Cadie Thompson. Follow her on Twitter @CadieThompson.