A record number of professionals are now in unions, according to the latest report from the Bureau of Labor Statistics. Professional union membership rose to 6.27 million last year, a gain of just over 90,000 members and a new all-time high, said the AFL-CIO’s Department for Professional Employees in a press release. Union membership among professionals has steadily increased over the last 20 years, however, there are many sectors and occupations with plenty of room for union organizing. Legal services, architectural, engineering and computer services, for example, employ millions of professionals and are largely unorganized.