is there a codified list of large corporations that have gone back to full-time in office?

I understand this may not be the correct sub for this so delete it it isn't. I was just wondering if somebody has come up with a list of large corporations that have done that. I work in the field as a service technician in a particular occupation that does not allow for any remote work I have to physically be on site and sometimes it's many many sites throughout the day. I have noticed in the last couple of weeks that traffic has gone precipitously downhill and I was wondering if anybody has insight into how many people have returned back to the office in a full time basis.