Fundraising Fox

Aaron Coppa

Founder

Co-founder at FullSeam

New York City Metropolitan Area

FoundedFullSeam · YC

About

Aaron Coppa is the co-founder of FullSeam, an AI platform for finance and accounting teams. Previously, he was a founding engineer at TaxProper, a property tax software company that was acquired by Opendoor in 2022.

Co-founder at FullSeamYC W26

Intro paths

YC

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

GP

Their group partner at YC was Brad Flora, Backing expeditions into the future — the partner who ran FullSeam's batch and knows the company first-hand. YC profile ↗

→

In turn, Aaron can intro founders to FullSeam's investors below.

FullSeam's investors · 1

Y CombinatorSan Francisco · $500K checks · since 2026

Co-founders at FullSeam

TDThomas Dowling
Thomas DowlingCo-founder
GSGeoff Segal
Geoff SegalCo-Founder

Experience

  1. FullSeamCo-Foundercurrent2025 — present
  2. OpendoorSoftware Engineer2022 — 2025
  3. TaxProperHead of Product2019 — 2022Greater Chicago Area
  4. Amazon Web Services (AWS)Software Development Engineer2018 — 2019Greater Seattle Area
  5. AmazonSoftware Development Engineer Intern2017Greater Seattle Area

Skills & more

ProgrammingUnix1Computer Science1Physics1Software DevelopmentJavaC

From Aaron's professional profile.

Frequently asked questions

Who is Aaron Coppa?
Aaron Coppa is the co-founder of FullSeam, an AI platform for finance and accounting teams. Previously, he was a founding engineer at TaxProper, a property tax software company that was acquired by Opendoor in 2022.
Where does Aaron Coppa work?
Aaron Coppa is Co-founder of FullSeam.
What companies did Aaron Coppa found?
Aaron Coppa founded FullSeam.
Where did Aaron Coppa go to school?
Aaron Coppa studied at University of Illinois Urbana-Champaign (Bachelor's degree, Computer Science); Stuyvesant High School.

Founder mafias

Y Combinator mafia8,773

Also came through, then founded or led a company.

Sam AltmanPresidentFounded Tools for Humanity +3Jessica LivingstonCo-founderFounded Y CombinatorAlexis OhanianYC Summer 2005Founded RedditFred EhrsamYC Summer 2012Founded Nudge +1Matt HuangYC Winter 2011Founded HotspotsTrae StephensYC Winter 2022Founded Pursuit +1

+ 8,766 more

University of Illinois Urbana-Champaign mafia146

Also came through, then founded or led a company.

Max LevchinBSFounded PayPal +1Luke NosekBSFounded PayPalAnsuman SatpathyPhilosophyFounded Santa Ana Bio +2DeVaris BrownB.S.Founded Super Heroic +2Harish AgarwalB.S.Founded Nori +2Amitt MahajanBSFounded Rare Bits +1

+ 139 more

Stuyvesant High School mafia35

Also came through, then founded or led a company.

Josephine LeeHigh School DiplomaFounded Palette Labs +1Monte ZwebenFounded Splice Machine +1Ben LernerFounded Espresso AI +1Daryl SewFounded Certainly Health +1Allen KramerFounded Crux

+ 29 more

TaxProper mafia3

Also came through, then founded or led a company.

Thomas DowlingCo-founderFounded FullSeamGeoff SegalCo-FounderFounded FullSeam

Same school

Also attended University of Illinois Urbana-Champaign488

Max LevchinCo-founder of PayPal; founder, chairman & CEO of Affirm; partner at SciFi VCLuke NosekCo-founder of PayPal; co-founder of GigafundSundeep PeechuGeneral Partner at Felicis VenturesDeep NisharInvestment Team at General CatalystPrashant ShahPartner at Monta Vista CapitalNoorPartner at Clear Ventures

+ 482 more

Also attended Stuyvesant High School78

Alfred LinPartner at Sequoia CapitalSarah TavelVenture Partner at BenchmarkScott BillerInvestor at GV (Google Ventures)Hussein KanjiPartner at Hoxton VenturesBen FriedVenture Partner at Rally Ventures Management, LlcDan BorokCo-Founder and Managing Partner at NVP Capital

+ 72 more

Shared employers

Also worked at FullSeam1

Geoff SegalCo-Founder at TaxProper

Also worked at Opendoor42

Darcy YeeMarketing and Communications at Menlo VenturesGlenn SolomonInvestor at GGV CapitalJon ChuInvestor at Khosla VenturesBrett BrowmanInvestor at Khosla VenturesMatt MocharyInvestor at Fortius VenturesJames HerbertVenture Partner at Navitas Capital

+ 36 more

Also worked at TaxProper2

Donald StalterPartner at Sunshine LakeGeoff SegalCo-Founder at TaxProper

Also worked at Amazon Web Services (AWS)274

Nancy WangInvestor at Felicis VenturesJon TurowVenture Partner at Madrona Venture GroupEric AndersonPartner at Scale Venture PartnersKeerthi NalabotuInvestor at True VenturesAdam NaorInvestor at CapitalGKen HowardVice President of Technology Services at Flare Capital Partners

+ 268 more