contact them about offering their products and services to your client base.
Create a list of every product and service that your business offers and then make a matrix of all of the possible cross-selling opportunities that can be offered with every purchase.
Bundle products and services into packages.
Offer bonuses when customers purchase larger quantities.
Create pre-paid packages.
Offer tiered-level service or warranty packages (e.g., gold, silver, bronze, etc…)