To be fair, Apple remains a highly rated employer, with a 4.3 out of 5 rating at the time Glassdoor compiled the list - a rating that inched up slightly by 0.1 versus a year ago.
Among its differentiators are "industry-leading benefits that include annual mental health benefits of up to $10,000 for employees and each dependent" and opportunities for flexible and remote working arrangements.
XPO has more than 20,000 employees at approximately 200 sites in the United Kingdom and Ireland, including over 3.5 million square meters of warehouse space.
However, for individuals who may not have the right skill-set to work at Facebook, there are a set of 40 new companies on Glassdoor's list this year, such as Blizzard Entertainment and T-Mobile.
Among Glassdoor's 25 Best Places to Work, Manulife was the only insurance company - and came in at ranking #21 on the list.
Another employee, working at Facebook headquarters in California, stated that Facebook offered employees the once-in-a-lifetime opportunity to contribute towards building a product that is used by billions across the globe, and offers wonderful perks in addition.
"Employers where employees love to work continue to prove that they have a recruiting and business performance advantage", he added.
Another review read that the employee was highly satisfied working at Facebook, and praised fellow colleagues for being intelligent, energized, and passionate about the work they do.