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SEM Startups

Updated November 2026

Companies in the sem sector developing innovative solutions and technologies.

Explore 700 recently funded sem companies with verified founder contact information and fundraising data.

Total Companies
700
Total Funding
$522.7M
Avg Funding
$20.9M
Global Reach
8
countries

Top Cities for SEM

Palaiseau
Los Alamos
Austin
Geel
Meylan
Copenhagen

Recently Funded Companies

Export
Palaiseau, France

mirSense is a developer and manufacturer of a new generation of ultra-compact gas sensors designed to offer lasers for the medium infrared.

$7.9M raised
Apr 2025

Founder Contacts

41,000+ verified contacts

Los Alamos, United States

UbiQD is an advanced materials company that manufactures low-hazard quantum dots (QDs) and nanocomposites.

$20.0M raised
Apr 2025

Founder Contacts

41,000+ verified contacts

Austin, United States

Inspire Semiconductor in developing and delivering superior solutions for HPC, AI, blockchain and other compute-intensive applications.

$3.0M raised
Apr 2025

Founder Contacts

41,000+ verified contacts

Geel, Belgium

Magics Technologies is a nuclear research center that develops autonomous machines for sustainable energy sources.

$11.1M raised
Apr 2025

Founder Contacts

41,000+ verified contacts

Meylan, France

Dolphin Semiconductor is a semiconductor company that designs the key functions of an integrated circuit.

$11.3M raised
Apr 2025

Founder Contacts

41,000+ verified contacts

Copenhagen, Denmark

Sparrow Quantum develope and commercializes photonic quantum chip technology.

$24.2M raised
Apr 2025

Founder Contacts

41,000+ verified contacts

Glasgow, United Kingdom

Neuranics is a deep-tech startup that creates game-changing sensing solutions for healthcare, gaming, and metaverse applications.

$8.0M raised
Apr 2025

Founder Contacts

41,000+ verified contacts

Greifenberg, Germany

FaradaIC Sensors is to commoditize gas sensors and provide flexible gas sensing at a cheap cost for the expanding market.

$4.9M raised
Apr 2025

Founder Contacts

41,000+ verified contacts

Albany, United States

Lux Semiconductors develops crystalline thin-film semiconductors for flexible integrated circuits.

$2.9M raised
Apr 2025

Founder Contacts

41,000+ verified contacts

London, United Kingdom

Vaire builds energy-efficient semiconductor technology that powers AI computing with ultra-low energy consumption.

Mar 2025

Founder Contacts

41,000+ verified contacts

Sheffield, United Kingdom

Phlux is a photonics company developing innovative light detector and imaging systems.

$11.6M raised
Mar 2025

Founder Contacts

41,000+ verified contacts

Cupertino, United States

Retym is a semiconductor startup that builds semiconductor technology to transform the data center and telecommunications industries.

$75.0M raised
Mar 2025

Founder Contacts

41,000+ verified contacts

Goleta, United States

Aeluma operates as a semiconductor company that specializes in sensors and communications.

$12.0M raised
Mar 2025

Founder Contacts

41,000+ verified contacts

Lyon, France

Carbon is a French maker of solar modules.

$2.1M raised
Mar 2025

Founder Contacts

41,000+ verified contacts

New York, United States

ParadeDB is a modern Elasticsearch alternative built on Postgres. Built for real-time, update-heavy workloads.

$12.0M raised
Mar 2025

Founder Contacts

41,000+ verified contacts

Atlanta, United States

Plaid Semiconductors offers semiconductor substrates and interposer solutions for multi‑chip computing and high‑performance systems.

Mar 2025

Founder Contacts

41,000+ verified contacts

Dalmine, Italy

Resilco provides sustainable solutions for gas purification.

$5.5M raised
Mar 2025

Founder Contacts

41,000+ verified contacts

Cologne, Germany

Neutron Star Systems develops superconducting propulsion tech, enabling scalable, efficient, sustainable mobility for spacecraft.

$4.0M raised
Mar 2025

Founder Contacts

41,000+ verified contacts

London, United Kingdom

Zero Point Motion develops inertial sensors to enable precision positioning and navigation.

$5.2M raised
Mar 2025

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Inversion Semiconductor is engaged in the development of an advanced lithography platform for next-generation semiconductor applications.

$500K raised
Mar 2025

Founder Contacts

41,000+ verified contacts

Austin, United States

CleanPlanet Chemical is changing the way companies acquire chemicals and manage waste.

$30.0M raised
Mar 2025

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Exla employs quantization techniques for AI models to reduce memory consumption while simultaneously improving inference speed.

Mar 2025

Founder Contacts

41,000+ verified contacts

Høje Tåstrup, Denmark

ATLANT 3D leads atomic-scale manufacturing, innovating in microelectronics, optics, and photonics with digital precision.

$15.0M raised
Mar 2025

Founder Contacts

41,000+ verified contacts

Santa Clara, United States

Celestial AI develops an optical interconnect technology platform for data center and AI computing solutions.

$255.0M raised
Mar 2025

Founder Contacts

41,000+ verified contacts

Toronto, Canada

Miromind is a professional international SEO agency specializing in technical, semantic, and generative SEO for B2B and enterprise sectors.

$1.5M raised
Mar 2025

Founder Contacts

41,000+ verified contacts

Showing 326 to 350 of 700 companies

About the SEM Startup Ecosystem

The sem sector is an active area of startup innovation and venture capital investment. Companies in this space are developing new technologies, platforms, and services that address evolving market needs and create new business opportunities.

Funding Trends in SEM

SEM companies raise capital across various funding stages, from early seed rounds to late-stage growth financing. Investor interest in this sector is driven by the size of the addressable market, the pace of technology adoption, and the potential for scalable business models.

Growth Outlook

The sem sector is expected to continue evolving as technology advances, market dynamics shift, and new opportunities emerge. Companies that demonstrate strong product-market fit, efficient growth, and clear competitive advantages are well-positioned to attract continued investment.

SEM Funding Breakdown

Here is how funding is distributed among the 700 sem companies tracked in the VCBacked database.

Average Funding
$20.9M
Total Funding Tracked
$522.7M
Countries Represented
8

Distribution by Funding Stage

Other25 companies

Top Cities for SEM

1.Austin
2 companies$33.0M
2.London
2 companies$5.2M
3.San Francisco
2 companies$500K
4.Palaiseau
1 companies$7.9M
5.Los Alamos
1 companies$20.0M

Related Industries

Companies in the sem sector often overlap with or complement businesses in adjacent industries. Exploring related verticals can help you discover additional companies, identify partnership opportunities, and understand the broader competitive landscape.

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700 SEM Startups (2026) — Recently Funded — Page 14 | VCBacked