Under the 10-year contract, 118 council employees have transferred to the new company.
The company launched on 1 April, with more than 100 members of staff donning orange hi-vis uniforms to empty bins, cut grass, clean streets and public toilets as well as maintaining cemeteries, parks, open spaces and beaches.
According to Havant Borough Council, the joint venture could save Havant more than £2.5 million over the next five years through efficiency savings, increased buying power, profit sharing arrangements, reduction of management costs, and increased recycling income.
Norse South East would also look to take on extra work in the area. The company will also have the ability to bid for extra work, including grounds maintenance.