SUSU was presented the silver award in the Investors in People business improvement programme.
Assessor Janet Duncan said the award was presented for the quality of relationships between staff, the fun and vibrant atmosphere, and flexible work arrangements.
Union president David Gilani said: “I’m absolutely delighted that SUSU has been awarded Investors in People silver – putting us up there with employers who have been reaching for this level of external accreditation for decades.
“It’s fantastic that SUSU takes people development really seriously – both for our students and our staff. Next stop, gold.”