Surrey County Council has pledged to work with the Surrey Chambers of Commerce to boost business.
Leader David Hodge signed the accord to promote economic growth in the county together.
It comes after Mr Hodge made similar agreements with the Federation of Small Businesses and the Institute of Directors.
The council has already committed to ensuring 60% of its spending on goods and services is with local firms and revealed in its council tax announcement that 500 apprenticeships will be created next year to get young people on the career ladder.
It is also launching a website called Supply2Surrey to make it easier for firms to win public sector contracts in Surrey after the authority created BuildSurrey to help businesses go online to secure building repair and construction work for the council.
After signing the Memorandum of Understanding, Mr Hodge said: “We’re committed to taking an active role in supporting Surrey’s economy, helping it to grow and generate more jobs.
“Our focus is an helping local businesses to thrive and new ones to start up.”
Surrey Chambers of Commerce Chief Executive Louise Punter said: “The county council has a great interest in supporting business growth in Surrey and this agreement is confirmation of the work we will continue to do together to ensure Surrey remains the engine room of our economy.”
Surrey’s deputy leader Peter Martin and Chief Executive David McNulty also attended the signing of the agreement at County Hall.