Where the CSA marks fit
Singapore's position on this moved before most SMEs did. CSA expanded both the Cyber Essentials and Cyber Trust marks to cover cloud security, AI security and operational technology. So the question "how do we secure our AI adoption" now has a documented answer inside a scheme SMEs can actually certify against, rather than only in vendor whitepapers.
Which mark suits you is a separate question, and it is not answered by headcount. We wrote that up in full: Cyber Essentials or Cyber Trust? How to choose, and the two mistakes that cost most.
Worth being plain about what certification does and does not do. It will not stop an attack. What it does is force the inventory, the ownership and the detection question to be answered on a schedule instead of after an incident. Certification is not the goal. Being able to answer for yourself is the goal, and certification is the mechanism that makes someone do it.
If you take one thing from this
Adopt the AI. The productivity case is real and the firms that sit it out will not be rewarded for caution.
But make the security half of the decision deliberately: know what each tool holds, know what you connected it to, and give it an owner. Then answer the question at the top of this page, and if the answer is uncomfortable, start there rather than with a purchase.