Coordinating Our Local Liaisons And Bringing Out Related Agency Technical Expertise Act or the COLLABORATE Act This bill requires the Office of the Under Secretary of Defense for Acquisition & Sustainment and the Small Business Administration to enter an interagency agreement to coordinate the government contracting assistance provided by small business development centers and APEX Accelerators. Small business development centers provide business advising and technical assistance to existing small businesses and pre-venture entrepreneurs. The APEX Accelerators program provides education and training to support the capacity for businesses to participate in federal, state, and local government contracts.