The Suffolk County Clerk maintains an online index of all business certificates, partnerships, DBA filings, and corporations on its website. This website provides an entrance to numerous resources for starting, financing, expanding or relocating a business in Suffolk County, NY.At Suffolk Credit Union in Long Island, NY, we want to help make numbers to work for your business. View our business loan rates and deposit rates online. The Long Island Association has compiled a comprehensive list of resources for Long Island business owners that is updated regularly. SBA offers a variety of loan programs for very specific purposes—read more to see if your business qualifies to participate. Our office provides help with SBA services including funding programs, counseling, federal contracting certifications, and disaster recovery.