SOC2 is viral. When you sell B2B services to a SOC2-attested company, they will have a policy somewhere that requires them to ensure that you take adequate security precautions (this is called "vendorsec"). If you're not SOC2, the standard vendorsec process is that your prospective customer gives you a giant Excel spreadsheet questionnaire to fill out. If you are SOC2, your last SOC2 report will usually suffice.