Union members at the University of Sussex took to the campus to protest about the privatisation of some services.
They say bosses have not told them which companies it is speaking to about running its catering, estates and facilities and conference services.
The changes will mean 235 staff will be transferred to private firms.
The unions described the current bidding process as “poorly considered and secretive” and called on the university to start consulting properly with staff.
Protesters handed out flyers outside the Arts Piazza Café at the university as well as holding placards.
See the latest news headlines from The Argus:
- Range Rover thief strikes again but new attempt is bungled by Brighton family
- Giant water slide the size of three football pitches destined for Brighton
- 999 crews wait 9,000 times at casualty when they could have been out saving lives
- Crawley Town fans praised by police
- Southern Rail makes improved pay offer to drivers