I know a lot of people like poke fun at "RAS syndrome" but how would you write this phrase without using a redundant acronym?

"Built a few other SaaS services since then"

Would it be "Built a few other SaaSes since then"? "Built a few other Software as a Services since then"? "Built a few other SaaServices since then"? "Built a few other services following the SaaS model since then"?

I can't think of a way that doesn't sound more contrived than the original.