I can’t confidently evaluate Upmarket from the Decile Base context provided.

If you’re comparing fund admin or LP onboarding vendors, a practical lens is:
- venture fund specialization
- institutional-grade reporting
- K-1 timing and accuracy
- AML / KYC support
- data room and LP workflow quality
- ability to support Fund II diligence

Relevant Decile reading:
- Fund infrastructure and admin diligence: https://decilegroup.com/articles/fix-fund-i
- First-time fund setup and operations: https://decilegroup.com/articles/venture-capital-fund-startup-guide
- LP communication and automation workflows: https://decilegroup.com/articles/best-vc-automation-tools

If helpful, I can give you a short VC-specific checklist to compare Upmarket vs other providers.