Aaron Holiday
InvestorGeneral Partner at 645 Ventures · Board director at Efficient Capital Labs · Board director at UpsideHoM
New York, New York
Writes $250K – $1.5M checks · typically $500K
About
Aaron Holiday is co-founder and Managing Partner at 645 Ventures, an early-stage firm he launched in 2014 that leads seed and Series A rounds. He brings two decades of finance and technology experience, including building equities program trading and FX derivatives software, and previously served as the first Managing Entrepreneurial Officer at Cornell Tech, where he worked with former Twitter CTO Greg Pass to establish the campus Studio curriculum. His firm's portfolio includes Goldbelly, Iterable, FiscalNote, Squire, Resident/Nectar Sleep, FLY Labs (acquired by Google), Source3 (acquired by Facebook), and Abacus (acquired by Certify).
Contact· self-published, not guessed
Likely email· guessed from name + firm domain, not firm-published
- a•••@645ventures.comreveal70% confident
Invests in
AI & Machine LearningCloud ComputingConsumerCrypto & Web3Data & InfrastructureDeep TechDeveloper ToolsDirect to ConsumerE-commerceEdTechEnterprise SoftwareFintechFuture of WorkGamingGovTechHealthtechInsurTechIoTMarketplacesMedia & EntertainmentMedical DevicesPropTechSaaSSocial
Board director at Efficient Capital Labs
Intro paths
In turn, Aaron can intro founders to Efficient Capital Labs's investors below.
Efficient Capital Labs's investors · 7
Co-founders at Efficient Capital Labs
Board director at UpsideHoM
Intro paths
In turn, Aaron can intro founders to UpsideHoM's investors below.
UpsideHoM's investors · 4
Co-founders at UpsideHoM
Experience
- 645 VenturesCo-founder and Managing Partnercurrent2014 — present
- Cornell TechBoard Member, Cornell Techcurrent2020 — presentNew York, New York, United States
- Cornell TechAdjunct Faculty (Early Adopters & Startup Spinout Clinic)current2020 — presentNew York, New York, United States
- Cornell TechManaging Entrepreneurial Officer2013 — 2020greater new york city area
- Apollo TheaterBoard Membercurrent2023 — presentNew York, New York, United States
- YPO Metro NYMembership Committeecurrent2025 — presentNew York City Metropolitan Area
- YPO Metro NYMembercurrent2022 — present
- DFJ Gotham VenturesAssociate2012 — 2013
- GFI GroupBusiness Analyst - Product Development2008 — 2010New York, NY
- Goldman SachsSoftware Engineer - Equities Division2004 — 2008New York, NY
Skills & more
+5 more
Due DiligenceInvestmentsProduct ManagementFinancial AnalysisFinanceFrom Aaron's professional profile.
Deals · 11
Efficient Capital LabsBoard seat
via 645 Ventures · filed Sep 2024 · $10.9M raise
SkydropXBoard seat
via 645 Ventures · filed Oct 2021 · $25M raise
Squire TechnologiesLed round
via 645 Ventures · filed Mar 2024
SpiketrapLed round
via 645 Ventures · filed Jun 2020
BetterView MarketplaceLed round
via 645 Ventures
Fiscal NoteLed round
via 645 Ventures
GoldbellyLed round
via 645 Ventures
IterableLed round
via 645 Ventures
NanitLed round
via 645 Ventures
AbacusLed round
via 645 Ventures
Fly LabsLed round
via 645 Ventures
Attribution from SEC filings, press coverage, and firm rosters.
Other disclosed investments
Led
ResidentSource3
Board seats
Investor
BigEyeDeepSourceEden HealthOvertimePanther LabsResident
Sources: the firm's website · SEC Form D filings · curated public sources.
Colleagues at 645 Ventures
Network11
Investors connected to Aaron in public investor directories — a warm-intro map.
Frequently asked questions
- Who is Aaron Holiday?
- Aaron Holiday is co-founder and Managing Partner at 645 Ventures, an early-stage firm he launched in 2014 that leads seed and Series A rounds. He brings two decades of finance and technology experience, including building equities program trading and FX derivatives software, and previously served as the first Managing Entrepreneurial Officer at Cornell Tech, where he worked with former Twitter CTO Greg Pass to establish the campus Studio curriculum. His firm's portfolio includes Goldbelly, Iterable, FiscalNote, Squire, Resident/Nectar Sleep, FLY Labs (acquired by Google), Source3 (acquired by Facebook), and Abacus (acquired by Certify).
- Where does Aaron Holiday work?
- Aaron Holiday is General Partner at 645 Ventures and Board director at Efficient Capital Labs and Board director at UpsideHoM.
- What does Aaron Holiday invest in?
- Aaron Holiday invests in AI & Machine Learning, Cloud Computing, Consumer, Crypto & Web3, Data & Infrastructure, Deep Tech, Developer Tools, Direct to Consumer, E-commerce, EdTech, Enterprise Software, Fintech, Future of Work, Gaming, GovTech, Healthtech, InsurTech, IoT, Marketplaces, Media & Entertainment, Medical Devices, PropTech, SaaS, Social.
- What check size does Aaron Holiday write?
- Aaron Holiday typically writes checks of $250K – $1.5M.
- What boards does Aaron Holiday sit on?
- Aaron Holiday holds tracked board seats at Efficient Capital Labs, SkydropX, UpsideHoM.
- What companies has Aaron Holiday invested in?
- Investments tracked here include Abacus, BetterView Marketplace, Fiscal Note, Fly Labs, Goldbelly, Iterable, Nanit, Resident, Source3, Spiketrap, Squire Technologies, BigEye, and 8 more.
- Where did Aaron Holiday go to school?
- Aaron Holiday studied at Cornell Johnson Graduate School of Management (MBA, Venture Capital); Morehouse College (Bachelors of Science, Computer Science).
- Does Aaron Holiday lead rounds?
- Yes — Aaron Holiday has led 11 tracked investments.
Founder mafias
Y Combinator mafia8,773
Also came through, then founded or led a company.
+ 8,766 more
Goldman Sachs mafia249
Also came through, then founded or led a company.
+ 242 more
Cornell Johnson Graduate School of Management mafia10
Also came through, then founded or led a company.
+ 3 more
645 Ventures mafia3
Also came through, then founded or led a company.
Gotham Ventures mafia3
Also came through, then founded or led a company.
Same school
Also attended Cornell Johnson Graduate School of Management96
+ 90 more
Also attended Morehouse College23
+ 17 more
Shared employers
Also worked at Cornell Tech28
+ 22 more
Also worked at DFJ Gotham Ventures11
+ 5 more
Also worked at GFI Group7
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+ 1 more
Also worked at Goldman Sachs1,505
+ 1,499 more