It's 2018 and from the memo issued to staff about boozing, including at desks while working, the ethos seems like it's back in "Mad Men" days. Here is coverage in PR Week of that memo.
No longer, staff is informed, will drink trolleys troll the workplace. When booze is served at social events, such as with clients, food should be served. And, if attendees at those events are intoxicated, yes, safe travel home will be provided.
Corporate cultures differ greatly from one another. When I was employed full time at Kraft, gloved waiters manned trolleys that distributed to us workers items like crumb cake.
Any size business can promote itself like a big business. Complimentary consultation firstname.lastname@example.org. Here is a brief backgrounder.