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CARLSBAD

B2B

B2B startups in Carlsbad. Business software and services sold to other companies. The largest single category of startup across Southern California, spanning sales tools, vertical operating systems, and everything in between.

22
companies
$221.0M
total raised
Series C$103.0M
CARLSMED, INC.
Carlsbad, CA

Carlsmed® uses patient data and digital technologies to create optimal surgical plans and personalized aprevo® spine fusion devices.

Series CB2B
Series A$25.0M
Proper Voltage, Inc.
Carlsbad, CA

Proper Voltage is the digital bridge that seamlessly links power and product, opening up access to more choices and possibilities.

Series AB2B
$23.1M
New Nixon Holdings, Inc.
Carlsbad, CA

The entity behind Nixon, the watch and accessories brand founded in 1997 by Andy Laats and Chad DiNenna, which is now backed by private equity firm Trilantic Capital Management.

B2B
Seed$19.2M
ALT Sports Data, Inc.
Carlsbad, CA · Founded 2021

Unlock Engagement, New Fans & Revenue Through Sports Betting

SeedB2B
Series B$15.0M
Stone Engineering Equity Group, LLC
Carlsbad, CA · Founded 2025

This Carlsbad, CA private-equity vehicle for engineered stone manufacturing is run by managing member Oren Klaff, the investor and author best known for the bestselling sales book "Pitch Anything."

Series BB2B
$9.6M
We Comes Before Me Corp.
Carlsbad, CA · Founded 2023
B2B
$8.2M
Municipal Apparel Co LLC
Carlsbad, CA

MUNICIPAL was founded in 2019 to inspire people to bet on themselves and make big things happen. The apparel & footwear we create combines best-in-class quality, versatile performance and extreme comfort.

B2B
$3.5M
AppTech Payments Corp.
Carlsbad, CA

AppTech Payments Corp provides multi-bank payment infrastructure designed for compliance, scale, and operational resilience. Explore the platform, partner program, company, news, FAQ, and contact pages to learn more.

B2B
Seed$3.3M
ROSE DIAGNOSTICS INC.
Carlsbad, CA · Founded 2023

Co-founded by Andrew Morris, Eric Brouwer, and Adolfo Velazquez, the company is developing a rapid lung-cancer diagnostic called the verifi LUNG test.

SeedB2B
Series A$2.9M
Pear Health Labs, Inc.
Carlsbad, CA · Founded 2022

Through its health & fitness AI platform, PEAR creates personalized digital coaching experiences to help people move smarter, get healthier, and live happier.

Series AB2B
Seed$2.9M
mePrism Inc.
Carlsbad, CA · Founded 2019

Priwall helps you find and remove your personal data from data brokers. Protect your identity and reduce your digital footprint.

SeedB2B
Series C$2.1M
Safer Sports, Inc.
Carlsbad, CA · Founded 2022

SAFR Football Helmet Covers reduce the external blunt force that can cause traumatic brain injuries for all ages. Learn more!

Series CB2B
Series B$1.1M
AMERICA'S MOBILE INC
Carlsbad, CA · Founded 2021

Multi-carrier wireless internet for homes, businesses, and specialized equipment. No contracts, 24/7 support, and reliable connectivity across all 50 states.

Series BB2B
Seed$670K
LenderSquared, inc
Carlsbad, CA · Founded 2025

Founded by Ariel Trybuch, a fintech data/AI platform built for banks and credit unions.

SeedB2B
Series A$354K
VESTECK, INC.
Carlsbad, CA

The Vesteck Inc Endosuture Aneurysm Repair (ESAR) platform, Suture-Tight™, is revolutionizing the aneurysm repair space.

Series AB2B
Seed$250K
Wellin5 USA, Inc.
Carlsbad, CA · Founded 2019

Struggling with your mental health? Our online counsellors meet with you through our video counselling platform, when and where it works best for you.

SeedB2B
$250K
Hauser OS Inc.
Carlsbad, CA · Founded 2025

HAUSER is a world-class musician and magician of the cello. His passion is to show his audience the versatility of the cello. Watch latest videos and events!

B2B
Series A$250K
ClearPrice Networks, Inc.
Carlsbad, CA
Series AB2B
Seed$120K
Bristlecone Holdings, Inc.
Carlsbad, CA · Founded 2026

Bristlecone is the leading provider of connected logistics solutions, including AI applications, SAP integration, and more.

SeedB2B
Seed$20K
Lumate Technologies Inc.
Carlsbad, CA · Founded 2023
SeedB2B
Series A$725
Backplain, Inc.
Carlsbad, CA · Founded 2023

Multi-model AI with a patent-pending AI Firewall — for teams where data privacy is not optional. 47 models, one workspace, sensitive data stays home.

Series AB2B
Compose.ai
Carlsbad, CA · Founded 2021 · 7 employees

Cut your writing time by 40% with AI-powered autocomplete

Y CombinatorB2B