These 6 tech giants still haven’t released their diversity data by Michal Lev-Ram @FortuneMagazine January 27, 2015, 6:02 AM EST E-mail Tweet Facebook Google Plus Linkedin Share icons The tech industry’s lack of diversity—race, gender and ethnicity — has been a hot topic in recent months. It started earlier last year when civil rights leader Jesse Jackson, among others, pressured tech giants like Facebook, Google and Twitter to publicly disclose the demographic breakdown of their staffs. Since then, other companies, including Apple, Microsoft and Amazon, have followed suit. (Some, like Cisco and Intel, have published so-called “diversity reports” for years.) But despite the push for full transparency, a significant handful of technology companies both in and out of Silicon Valley have yet to make their numbers available. Below are six tech giants — IBM IBM , Oracle OCLCF , EMC EMC , Broadcom BRCM , SanDisk SNDK and Qualcomm QCM — that have yet to release their data. A spokesperson for Redwood Shores, Calif.-based Oracle says the company has no plans to do so. A few other tech companies Fortune spoke to were more thoughtful in their responses, asserting that while they have yet to disclose their diversity numbers, they are engaged in active, internal conversations to determine when and how they should go about doing so. Even among those technology firms that have released diversity data, some companies are more transparent than others. For example, not all tech firms have published the entire contents of their annual EEO-1 reports, a government form requiring many employers to provide a count of their employees by job category, ethnicity, race and gender. And, of course, there is the issue of what happens after a company releases such data—after all, transparency alone isn’t enough to move the needle on diversity and inclusion. But the flow of disclosures has led to some real action in the Valley, including a recent move by Intel to invest $300 million in STEM education in underserved regions and startups founded by women and minorities. The real question for the companies that haven’t made their numbers available—in particular those that don’t intend to do so—is why? Yes, it is only a starting point. But judging by the tsunami of conversations the disclosures have led to, it’s an important one.