Despite months of talk and hundreds of millions of dollars earmarked for diversifying workforces, Silicon Valley is still a bit of a (white) boy's club.

Google last month pledged $150 million for diversity initiatives and $115 million the year before. But has anything changed since the tech giant publicly acknowledged its shortcomings in May 2014?

"Though we still have a long way to go, we're seeing some early progress," Google said yesterday, reporting that 21 percent of its tech hires made last year were women.

The overall number of females in technical roles also increased by 1 percent—perhaps due in part to long-standing investments like the $3 million Google devoted to Anita Borg Scholarships for women pursuing computer science degrees.

In 2010, just 14 percent of the company's software engineers hired through campus outreach programs were women. That number grew to 22 percent in 2014.

Similarly, only 8 percent of Google's I/O audience in 2013 were female, and 20 percent last year. But during the May conference, the company said women were almost a quarter of its audience.

While Google reported an increase in black and Hispanic Googlers that actually outpaced the overall hiring growth, they still make up only 2 percent and 3 percent of the organization, respectively.

"We've laid groundwork to accelerate representation of [minorities]," Google said on Monday, touting its recent efforts to deepen partnerships with historically black colleges and universities.

The news comes as Reddit CEO Ellen Pao said she will appeal a recent gender discrimination suit against venture capitalist firm Kleiner Perkins Caufield & Byers, which has invested in Google and other high-profile tech firms.