Riki Karjalainen
FounderCo-Founder at Last Accounting Company
San Francisco Bay Area
FoundedLast Accounting Company · YC
About
Riki Karjalainen is co-founder of Last Accounting Company and previously worked on data infrastructure at Token Terminal. He studied applied mathematics at Aalto University.
Co-Founder at Last Accounting CompanyYC S26
Intro paths
Riki went through Y Combinator (Summer 2026) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Gustaf Alstromer — the partner who ran Last Accounting Company's batch and knows the company first-hand. YC profile ↗
In turn, Riki can intro founders to Last Accounting Company's investors below.
Last Accounting Company's investors · 1
Co-founders at Last Accounting Company
Experience
- LAC (YC S26)Co-Foundercurrent2026 — present
- Token TerminalData Engineer2025 — 2026
- Token TerminalResearch Analyst2022 — 2023
- Stealth StartupCo-Founder2021 — 2023
Education
- Aalto UniversityMaster of Science - MS, Applied Mathematics2024 — 2026
- Y CombinatorS26
- Aalto UniversityBachelor of Science - BS, Engineering Physics and Mathematics2019 — 2023
- Munkkiniemen yhteiskoulun lukioBaccalaureate2016 — 2019
Founder mafias
Y Combinator mafia8,668
Also came through, then founded or led a company.
+ 8,661 more
Aalto University mafia14
Also came through, then founded or led a company.
+ 7 more
Token Terminal mafia2
Also came through, then founded or led a company.
Same school
Also attended Aalto University91
+ 85 more
Also attended Y Combinator2,000
+ 1,994 more
Shared employers
Also worked at LAC (YC S26)4
Also worked at Token Terminal2
Also worked at Stealth Startup330
+ 324 more



















