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SAN DIEGO

Industrials

Industrials startups in San Diego. Manufacturing, hardware, and physical-world operations. Overlaps heavily with the region's decades-old aerospace and defense manufacturing base, now extending into robotics and automated production.

8
companies
$113.6M
total raised
Series A$73.6M
Monarch Quantum, Inc.
San Diego, CA · Founded 2025

We’re an integrated photonics company in California building the light engines that power the next era of quantum technology — from advanced computing to precision sensing.

Series AIndustrials
Series A$35.5M
Nuvve Holding Corp.
San Diego, CA · Founded 2020

Nuvve: Batteries, microgrids and Vehicle-to-Grid (V2G) for Intelligent Electrification; Nuvve powers flexible energy by turning buildings, batteries, and EVs..

Series AIndustrials
Seed$2.4M
Hempacco Co., Inc.
San Diego, CA · Founded 2019

Disrupting Tobacco

SeedIndustrials
Series A$750K
Alderbuck Energy, Inc.
San Diego, CA · Founded 2024

Alderbuck Energy is modernizing power distribution with solid-state transformer technology built for the electricity demands of AI, EVs, and the modern grid.

Series AIndustrials
Series A$720K
Pacific Integrated Energy, Inc.
San Diego, CA

Pi Energy was co-founded by Phil Layton (COO), and the solar technology company has raised capital from retail investors through the equity crowdfunding platform StartEngine.

Series AIndustrials
Pre-Seed$450K
Delta-S Energy, Inc.
San Diego, CA · Founded 2024
Pre-SeedIndustrials
Seed$119K
Alcheme Bio Inc.
San Diego, CA · Founded 2023

Nutralase® is a precision enzyme system from Alcheme Bio that removes off-flavors from plant proteins at the molecular source — clean label, drop-in, no reformulation.

SeedIndustrials
Zephyr Fusion
San Diego, CA · Founded 2025 · 2 employees

Powering tomorrow's industrial revolution in space

Y CombinatorIndustrials