Last year, Twitter, Inc. was listed by Glassdoor.com as the best tech company to work for and the second best company overall, but due to a number of changes, Twitter has now fallen off of the top 50 list completely.

Glassdoor collects anonymous salary information and employee opinions, providing a more honest internal view of big companies than can be found in a quarterly earnings report call.

Glassdoor CEO Robert Hohman points to changes in leadership and management policies as the primary causes for the negative shift Twitter’s image, as well as growing pains for the recently public company.

Hohman explained that companies often rank highly the first year after going public, saying, “There’s a pretty big halo in the employee base around them.”

“The year after an IPO, it’s not uncommon to see some churn. Twitter has had more than most,” Hohman said in an interview with Bloomberg, noting that Twitter had a significant number of changes in upper management over the last year. “Employees point to a lot of reorgs in the product and engineering team.”

Hohman was quick to point out that while Twitter is no longer in the top 50 list of best employers, it still ranks above average, and he believes that the company will quickly make its way back up the list, saying, “I personally think Twitter’s going through adolescence.”

This year’s best employers

So who replaced Twitter as the top company? The new best tech company and also the best company overall is Google, Inc, making this the first time the search engine/everything-else company made the top of the list.

Hohman credits Google with creating “agile HR,” which allows the company to frequently survey employees and quickly adapt to changes in employee needs. He explained that one area on which Google has focused is its aging employee base, increasing support for work-life balance with policies that benefit families.

Hohman also noted that this year’s top 50 list was more diverse than ever, with the previously tech-dominated list seeing a wider array of industries such as pharmaceuticals, consulting firms, and even auto manufacturers like Ford and Toyota.

According to Hohman, one cause for this shift is the adoption of tech company strategies in non-tech industries.