There were six bidders for the catering contract.

投标承办酒席的有六家商号。

《牛津词典》

Here’s an example of a petition I just created asking Rollins College to to reconsider its contract with a catering company.

有个例子可以参考一下，我发布了要求罗琳学院（asking Rollins College）重新考虑她与一个餐饮公司的合同。

youdao

Any walkout could involve more than 300 workers, including contract catering staff, whom the union claims are similarly underpaid.

BBC: NEWS | UK | England | West Midlands | Cleaners strike ballot vote due

Some schools organise their own catering, while others contract the service in through private companies or the local authority.

BBC: School caterers 'confident' about meat supplies

One, to contract out airline catering supplies, is easy to resolve.

ECONOMIST: British Airways