My roommate in college worked at GE's Global Research lab in Schenectady. As a bit of a relic from the heyday of US corporate research they still had an in-house glassblowing department for producing all the necessary glassware for all the labs and chemical/material research!
This is surprisingly common at big research universities! My classmate even managed to take a course on glassblowing--and have it count for her PhD!
If your institute doesn't have an in house glass blower and you need one, I've been happy with these guys for the past 20 years https://adamschittenden.com/
The first session in my freshman Chemistry lab was on bending glass tubing by heating it to softness with a Bunsen burner. One of my classmates, with a burned finger, said that the takeaway lesson was "hot glass looks like cold glass".
Probably more for repairing than producing, in my experience. That stuff's expensive and breaks easily. An old lab joke: Which daily sound scares a chemist the most? - Krk.