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Mark Tompkins - portfolio and founded companies

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About Mark Tompkins

Mark Tompkins is an entrepreneur and an angel investor based out of New York City, United States. Their journey in the startup ecosystem started in 2021 through Aeluma. Mark Tompkins has founded 1 company. As an angel investor, Mark Tompkins has a portfolio of 5 companies, focusing primarily on sectors like High Tech, Auto Tech and 9 more sectors. They invest in companies across United States and United Kingdom. Their most notable investments include companies like Serve Robotics and Aeluma.
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New York City, United States
Investment Portfolio
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Mark Tompkins' Investments

Mark Tompkins has invested in 5 companies. Their most recent investment was in Matternet (Post IPO Round) on May 28, 2026. Their investments are primarily in High Tech, Auto Tech and 9 more sectors. Their investment portfolio include companies in United States and United Kingdom.
Here is the list of recent investments by Mark Tompkins:
Date
Company
Round
Round Amount
Co-Investors
May 28, 2026
Post IPO
$33M
Feb 10, 2026
Angel
$80M
Sep 2025
Angel
Undisclosed
-
Aug 10, 2023
Series A
$30M
View all Investments by Mark Tompkins
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Mark Tompkins' Portfolio Exits

Mark Tompkins has 3 Portfolio Exits namely Serve Robotics, Aeluma and Deep Fission.
Here are the details of all portfolio exits by Mark Tompkins:
Company
Description
Location
Total Funding
Founded Year
Exit Type
Exit Date
Developer of autonomous robots for last-mile delivery of goods
$247M
2021
IPO
Apr 18, 2024
Provider of LiDAR-based sensors
Goleta (United States)
$8M
2020
IPO
Nov 17, 2022
Nuclear energy company that is developing a novel, deeply buried, small modular reactor technology designed to provide a safe, clean, and efficient source of power
Berkeley (United States)
$84M
2023
IPO
Jun 18, 2026
View all Portfolio Exits by Mark Tompkins

Mark Tompkins' Founded Companies

Mark Tompkins has founded Montrose Capital Partners.
Here is the detail of this founded company:
Company
Short Description
Total Funding
Founded Year
Current Stage
Location
Public markets venture capital firm investing in high-growth early-stage companies
-
-
Unfunded
Miami
View all Founded Companies by Mark Tompkins

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