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Fathom Fund

4201 Main St, Suite 255, Houston, TX, 77002, United States

Overview

Investment firm focused on deep-tech startups.

Founded

2023

Deals · 12mo

1

Links

WebsiteLinkedIn

Stage focus

Seed
Series A

Geographic focus

United States

Sector focus

—

Investment portfolio

6rounds
NAMEDATESIZE
OurSky
May 2026Participated
$90 MSeries A
Nullspace
Aug 2025Led
$3 MSeed
Persona AI
May 2025Participated
$27 MSeed
ReSource Chemical
Mar 2025Led
$15 MOther Equity
Xscape Photonics
Oct 2024Participated
$44 MSeries A
Convex
Nov 2021Participated
$4 MSeed
OurSky
May 2026Participated
$90 MSeries A
Nullspace
Aug 2025Led
$3 MSeed
Persona AI
May 2025Participated
$27 MSeed
ReSource Chemical
Mar 2025Led
$15 MOther Equity
Xscape Photonics
Oct 2024Participated
$44 MSeries A
Convex
Nov 2021Participated
$4 MSeed
6
Items
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Insights

Time horizon

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Deal Distribution

Fathom Fund: 6 funding rounds are recorded in the selected participation categories.All available history.
Fathom Fund: 6 funding rounds are recorded in the selected participation categories. All available history
Round typeLed dealsParticipated deals
Seed12
Series A02
Other Equity10

Monthly Deal Activity

Fathom Fund: 6 deals are recorded across 60 months.All available history.
Fathom Fund: 6 deals are recorded across 60 months. All available history
MonthDeals
Nov '211
Dec '210
Jan '220
Feb '220
Mar '220
Apr '220
May '220
Jun '220
Jul '220
Aug '220
Sep '220
Oct '220
Nov '220
Dec '220
Jan '230
Feb '230
Mar '230
Apr '230
May '230
Jun '230
Jul '230
Aug '230
Sep '230
Oct '230
Nov '230
Dec '230
Jan '240
Feb '240
Mar '240
Apr '240
May '240
Jun '240
Jul '240
Aug '240
Sep '240
Oct '241
Nov '240
Dec '240
Jan '250
Feb '250
Mar '251
Apr '250
May '251
Jun '250
Jul '250
Aug '251
Sep '250
Oct '250
Nov '250
Dec '250
Jan '260
Feb '260
Mar '260
Apr '260
May '261
Jun '260
Jul '260
Aug '260
Sep '260
Oct '260

Sector Breakdown

Fathom Fund: Space & Frontier Tech is the largest displayed sector by deal count (4 deals).All available history.

A deal can appear in multiple sectors, so sector totals may overlap. Capital represents disclosed total round sizes, not fund cheque sizes.

Fathom Fund: Space & Frontier Tech is the largest displayed sector by deal count (4 deals). All available history
SectorDeals
Space & Frontier Tech4
Enterprise Software3
Hardware & Robotics2
AI & Machine Learning2
Data, Analytics & IT2
Developer Tools2
Networks, Cloud & Communication1
Manufacturing1
Clean Energy & Sustainability1
Transportation & Logistics1

Deal Size Distribution

Fathom Fund: 6 rounds have a disclosed size in the displayed size bands.All available history.

Undisclosed round sizes are excluded. Capital represents total round sizes, not fund cheque sizes.

Fathom Fund: 6 rounds have a disclosed size in the displayed size bands. All available history
Round size band (USD)Deals
<$5M2
$5M-$10M0
$10M-$25M1
$25M-$50M2
$50M-$100M1
$100M-$250M0
$250M-$500M0
$500M-$1B0
$1B+0

Deals By Geography

Fathom Fund: United States has the largest recorded deal count among the displayed regions (6 deals).All available history.

Top 1 of 1 regions; European countries are grouped as Europe.

Fathom Fund: United States has the largest recorded deal count among the displayed regions (6 deals). All available history
RegionDeals
United States6
Fathom Fund: 20 co-investors are shown, with Altair sharing 1 recorded deals.All available history.

Co-Investors

Bubble size = shared deals

Click a bubble to open that fund in a new tab.

Shows up to 20 co-investors ranked by shared deals. Deals may be shared with multiple funds, so rows overlap. Capital is total round size, not fund cheque size.

Fathom Fund: 20 co-investors are shown, with Altair sharing 1 recorded deals. All available history
Co-investorShared deals
Altair1
Angels1
BRV Capital Management1
Chevron Technology Ventures1
Cisco Investments1
Cofounder Ventures1
dConstruct Technologies1
Detroit Venture Partners1
Embedded Ventures1
General Catalyst1
Golden Seeds1
Goose Capital1
IAG Capital Partners1
Invicta Growth1
Island Green1
K2 Global1
K50 Ventures1
Kalea Ventures1
Khosla Ventures1
Kyra Ventures1

Investment Strategy

Fathom Fund: Led accounts for 33% and participating for 67% of round participation.All available history.
Fathom Fund: Led accounts for 33% and participating for 67% of round participation. All available history
CategoryDeals (count)Share (%)
Led233%
Participating467%
Fathom Fund: Single-lead accounts for 50% and co-led for 50% of lead dynamics.All available history.
Fathom Fund: Single-lead accounts for 50% and co-led for 50% of lead dynamics. All available history
CategoryDeals (count)Share (%)
Single-lead150%
Co-led150%

Team

Paul Sheng