The latest survey of how employees view their companies provides more evidence that the most engaged, energized and “happiest” workers are those whose workplaces and careers provide a sense of meaning, opportunity for growth, development and creative innovation — more than just pay or career advancement. This survey, conducted by Glassdoor, was summarized in a Fast Company story by Drake Baer about six “secrets” of the happiest workplaces.

Baer writes,”Rather than showing a focus on perks, compensation, and other incentives, the best-rated workplaces had a range of intrinsic motivators, like challenging work, impact upon society, and an opportunity to work with brilliant colleagues.” This year’s overall winners were the consultancy Bain & Company, who was named best large company to work for. The investment website the Motley Fool won for best medium-sized company, while Twitter was named the best tech company to work for.

Unsurprisingly, tech firms were overrepresented in the top 50–though the results have little to do with Silicon Valley perks. “Rather than ‘it’s because they pay a lot’ or because it’s ‘hey, we’re Facebook, and we give everyone as much food as they possibly eat,'” says Glassdoor SVP of People Allyson Willoughby, “the reasons people like where they work were much deeper.”

Click here for the full report and listing of top companies from the survey.