Fundraising Fox

Sami Laakkonen

Founder

Founder at Last Accounting Company

Helsinki, Uusimaa, Finland

FoundedLast Accounting Company · YC

About

Sami Laakkonen is an early employee at Token Terminal who built large-scale financial data infrastructure, and holds a degree in Computer Science from Aalto University. He is co-founder of Last Accounting Company.

LinkedIn ↗X / Twitter ↗
Latest on 𝕏

Sami Laakkonen @samilaa

chat im on my last % is this founder mode https://t.co/t6KK0njpQ0

Jul 27, 2026 · ♥ 5

Sami Laakkonen @samilaa

omw to europe (for sales) & there’s @Starlink on the plane!! total game changer been waiting for this @airfrance ftw! https://t.co/gQBvNB65Ce

Jul 27, 2026 · ♥ 1

Sami Laakkonen @samilaa

all about the journey 😌 https://t.co/JujHLLsiCp

Jul 25, 2026 · ♥ 1

Founder at Last Accounting CompanyYC S26

Intro paths

YC

Sami went through Y Combinator (Summer 2026) — any YC alum in your network can reach them through the YC community.

GP

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, Sami can intro founders to Last Accounting Company's investors below.

Last Accounting Company's investors · 1

Y Combinator

Co-founders at Last Accounting Company

RKRiki Karjalainen
Riki KarjalainenCo-Founder
VPVeikko Pere
Veikko PereFounder
PVPietari Virkkunen
Pietari VirkkunenCo-founder

Experience

  1. LAC (YC S26)Co-Foundercurrent2026 — present
  2. Token TerminalSenior Data Engineer2022 — 2026
  3. Stealth StartupCo-Founder2021 — 2023
  4. SievoJunior Software Engineer2021Helsinki, Uusimaa, Finland
  5. SievoJunior Software Engineer2021Helsinki, Uusimaa, Finland
  6. Finnish Air ForcePilot Reserve Officer (LentoRUK)2019 — 2020

Education

  1. Y Combinator
  2. Aalto UniversityBachelor of Science - BS, Computer Science2020 — 2027
  3. Munkkiniemen YhteiskouluHigh School Diploma2016 — 2019

Skills & more

Machine LearningTypeScriptKubernetesComputer Science2Game Development2BlenderCloud ComputingCloud ApplicationsGame DesignGoogle BigQueryPostgreSQLGoogle Cloud Platform (GCP)
+12 moreNode.jsDockerUnityC#ScalaGitJavaScriptC (Programming Language)React.jsASP.NETASP.NET CoreMicrosoft Azure

From Sami's professional profile.

Founder mafias

Y Combinator mafia8,668

Also came through, then founded or led a company.

Sam AltmanPresidentFounded LooptFred EhrsamYC Summer 2012Founded CoinbaseMatt HuangYC Winter 2011Founded HotspotsTrae StephensYC Winter 2022Founded PursuitDelian AsparouhovYC Summer 2014Founded Nightingale +1Justin KanYC Winter 2018Founded Rye +3

+ 8,661 more

Aalto University mafia14

Also came through, then founded or led a company.

Pauliina MeskanenBachelor’s DegreeFounded CalectraAlbert NazanderMaster of ScienceFounded Meru HealthGabriele MusellaMAFounded CoinruleJaakko RauhalaMaster of Science (Tech.)Founded Kapacity.ioRami El GeneidyMaster’s DegreeFounded Kapacity.ioAshish AgarwalStudy Abroad ExperienceFounded SigmaMind AI

+ 7 more

Token Terminal mafia2

Also came through, then founded or led a company.

Riki KarjalainenResearch AnalystFounded Last Accounting Company

Same school

Also attended Y Combinator2,000

Leo LuInvestor at Foundation CapitalMaroof AhmedFounder at Octopus VenturesJustin SwartPartner at Bitkraft Esports VenturesVictor SantosVictor Scout at One Way VenturesSwapnil JainCEO, Observe.AI at EMERGENT VENTURESChase AdamPartner at Very Serious Ventures

+ 1,994 more

Also attended Aalto University91

Patrik BackmanGeneral Partner at OpenOceanMirva LaatunenSenior Investment Associate at OpenOceanTony NystenPartner at OpenOceanElina HolkkoPartner and CFO at Lifeline VenturesMohammad Zuhair KhanTrainee / Data Engineer at Lifeline VenturesTeemu MattilaPartner at Lifeline Ventures

+ 85 more

Shared employers

Also worked at LAC (YC S26)4

Max LarssonInvestments at Wave VenturesRiki KarjalainenCo-Founder at Last Accounting CompanyVeikko PereFounder at Last Accounting CompanyPietari VirkkunenCo-founder at Last Accounting Company

Also worked at Token Terminal2

Oskari TempakkaInvestor at Enzo VenturesRiki KarjalainenCo-Founder at Last Accounting Company

Also worked at Stealth Startup330

Andrew ChenGeneral Partner at Andreessen HorowitzErica VanInvestment Director at Intel CapitalHemamAdvisor at Clear VenturesHamish GarnettAssociate at Manta Ray VenturesFranz KoflerInvestor at Next Frontier CapitalGüimar Vaca SitticVenture Partner at FJ Labs

+ 324 more

Also worked at Sievo3

Tobias LangeInvestor at Susquehanna Growth EquityBen WeinbergInvestor at Susquehanna Growth EquityPietari VirkkunenCo-founder at Last Accounting Company