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MCJ — Portfolio

Investor actively backing innovative startups and growth-stage companies across various industries and funding rounds.

56
Companies
$522.7M
Total invested
$9.0M
Avg. check
54
Industries
Artificial Intelligence (AI) 6Sustainability 6Battery 4Energy 4Information Technology 4Renewable Energy 4+48 more
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Portfolio companies

Showing 124 of 56
Mantel
September 2024

Mantel proposes a method to trap CO2 before it enters the atmosphere.

Carbon Capture · Cambridge$30.0M Series A
Kopperfield
September 2022

Solving online commerce for home electrification

Battery · Seattle$5.0M Seed
Cloud to Street
September 2022

Cloud to Street is a satellite and AI platform to track floods in near real-time anywhere on earth.

Artificial Intelligence (AI) · New York$12.0M Series A
Dispatch Goods
September 2021

Dispatch Goods is an industrial tech company building the infrastructure for reusable packaging.

Delivery · San Francisco$5.8M Seed
Clean Crop Technologies
July 2026

Clean Crop Technologies specializes in advanced treatments for foods and seeds, effectively reducing mold, pathogens, and bacteria.

AgTech · Holyoke$7.9M Venture - Series Unknown
Rodatherm Energy
July 2026

A geothermal company that plumbs its boreholes with a closed loop

Energy · Salt Lake City$8.0M Grant
Paces
July 2024

Agentic AI for Power Projects and AI Infrastructure

Artificial Intelligence (AI) · BrooklynSeries A
LGND
July 2025

LGND is a technology business that specialises in AI-powered spatial data solutions.

Artificial Intelligence (AI) · Berkeley$9.0M Seed
Rheaply
June 2022

Rheaply provides a platform that enables organizations to exchange materials and resources effectively.

Enterprise Software · Chicago$20.0M Venture - Series Unknown
Red Metals
June 2026

Red Metals is a copper manufacturing company that builds a domestic high-conductivity copper rod production.

Industrial Automation · Charleston$10.0M Seed
Waterplan
June 2024

Waterplan is a SaaS platform for companies to manage water availability in their facilities and supply chain.

Artificial Intelligence (AI) · San FranciscoGrant
Verse
June 2026

Verse delivers energy cost intelligence for the enterprise.

Artificial Intelligence (AI) · San Francisco$54.0M Series B
Terra.do
June 2022

Terra.do operate as an online climate school that offers learners an overview of the entire climate landscape.

Education · Stanford$5.0M Seed
Moment Energy
May 2026

Moment Energy is a clean tech company focused on repurposing electric vehicle batteries to create sustainable energy storage solutions.

Battery · Coquitlam$3.0M Series B
Helio Home
May 2023

Helio makes transition off fossil fuels and fully electrify their homes

Home Improvement · DenverSeed
Recheck
May 2026

Recheck is the clean business platform for the solar industry.

Infrastructure · Hanover$2.0M Pre-Seed
Clarasight
April 2026

Climate Club is a carbon reduction platform that focuses on employee education, engagement, and activation.

GreenTech · New York$11.5M Series A
Phuc Labs
April 2023

Phuc Labs implements robotics to automate the method of identifying, separating, and reclaiming particles from water.

Recycling · BostonSeed
Carbon Collective
April 2022

Carbon Collective is a financials services company.

Financial Services · Albany$2.2M Seed
Impossible Metals
April 2026

Impossible Metals is building underwater robotics vehicles which mine battery metals responsibly from the seabed.

Battery · PasadenaVenture - Series Unknown
Cirplus
February 2024

B2B Marketplace for circular plastics

Internet · HamburgVenture - Series Unknown
Lilac Solutions
February 2024

Lilac is a direct lithium extraction technology company that enables producers to extract lithium from brine resources.

Advanced Materials · Oakland$145.0M Series C
Archimetis
February 2026

Archimetis provides an AI-powered operational reasoning system for energy, chemical, pharma, and industrial plants.

Agentic AI · South San Francisco$11.5M Venture - Series Unknown
Kodama Systems
October 2025

Restoring forests for future generations

Forestry · Sonora$7.0M Seed

Where MCJ invests

Artificial Intelligence (AI)6
Sustainability6
Battery4
Energy4
Information Technology4
Renewable Energy4

About MCJ's portfolio

How many companies has MCJ invested in?

MCJ has invested in 56 companies tracked in our database. The portfolio spans multiple industries and funding stages, from seed-stage startups to late-stage companies.

What industries does MCJ invest in?

MCJ's top investment sectors include Artificial Intelligence (AI), Sustainability, Battery, Energy, Information Technology. The firm invests across 54 different industry categories.

What is MCJ's largest investment?

Among tracked funding rounds, Lilac Solutions received $145.0M in a Series C round. MCJ's total known invested capital is $522.7M.

What is the average investment size for MCJ?

MCJ's average investment size is $9.0M across its portfolio of 56 companies.

What are MCJ's most recent investments?

Recent MCJ portfolio additions include Mantel, Kopperfield, Cloud to Street, Dispatch Goods, Clean Crop Technologies. These companies were founded in 2020 or later.

Reach the founders behind these 56 companies
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