William Geist is a managing partner at Upper90 who specializes in hybrid financing that combines equity and non-dilutive capital for technology companies focused on efficient scaling rather than growth at all costs. His background spans investment banking, M&A, and public markets along with his CFA designation, giving him a more quantitative and risk-focused approach to venture investing than traditional early-stage VCs.
About their Fund
Sectors
Fintech, Ecommerce, Logistics, Marketplaces, SaaS
Rounds
Seed - Series A
Avg Check Size
$5M - $10M
Notable Investments
Upper90 is a hybrid credit and equity fund that requires both components in every deal, allowing them to structure bespoke credit against specific revenue streams while helping founders "skip or delay your Series A" to retain more ownership. Their LP base consists of 300+ founders and operators who drive deal sourcing, and they focus on data-predictable cash-flow businesses where they can provide large credit lines (sometimes 10x+ the equity raised) against predictable revenue streams.
Notable Fund
Investments
Is this information out of date? Let us know
Popular Investors
investor name
Active in
Rounds
Avg. Check
Links
Deeptech / Hardware
Robotics
Biotech
+
12
View more in profile...
Unknown
Pre-Seed - Seed
Unknown
$400K - $2M
Unknown
Defense
Deeptech / Hardware
Energy
+
7
View more in profile...
Unknown
Pre-Seed - Series A
Unknown
$100K - $5M
Unknown
Defense
Deeptech / Hardware
Energy
+
7
View more in profile...
Unknown
Pre-Seed - Series A
Unknown
$100K - $5M
Unknown
Biotech
Health
Deeptech / Hardware
+
2
View more in profile...
Unknown
Pre-Seed - Seed
Unknown
$250K - $2M
Unknown
Climate
Deeptech / Hardware
Materials
+
4
View more in profile...
Unknown
Pre-Seed - Seed
Unknown
$400K - $1.5M
Unknown
Deeptech / Hardware
Robotics
Biotech
+
7
View more in profile...
Unknown
Pre-Seed - Seed
Unknown
$400K - $2M
Unknown
Deeptech / Hardware
Robotics
Biotech
+
2
View more in profile...
Unknown
Pre-Seed - Seed
Unknown
~$750K
Unknown
Fintech
Deeptech / Hardware
Devtools
+
2
View more in profile...
Unknown
Pre-Seed - Series A
Unknown
$250K-$1M
Unknown
Or automatically find your investor matches
Upload your pitch deck to get your best investor matches in minutes.
Reveal the very best VCs to pitch for your startup
Get matching investors' email addresses
No ads. No catch. Free from VC Sheet.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Success. Check your email in 5 minutes.




















.jpeg)







.jpeg)











































































.png)
























































































































.jpeg)









.jpeg)
















































































.jpeg)



