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SEM Startups

Updated October 2026

Companies in the sem sector developing innovative solutions and technologies.

Explore 693 recently funded sem companies with verified founder contact information and fundraising data.

Total Companies
693
Total Funding
$813.9M
Avg Funding
$32.6M
Global Reach
12
countries

Top Cities for SEM

Paris
Cork
Beaverton
Grenoble
Las Condes
Dalmine

Recently Funded Companies

Export
Paris, France

Kayrros is an advanced data analytics company that helps global energy market participants make better investment decisions.

$44.1M raised
Mar 2022

Founder Contacts

41,000+ verified contacts

Cork, Ireland

ActionZero is an industry pioneer, developing and deploying ground-breaking, self-funding solutions for a zero-emissions future.

$3.2M raised
Mar 2023

Founder Contacts

41,000+ verified contacts

Beaverton, United States

fJscaler is a manufacturing company that offers semiconductor products for the optical communications market.

$7.5M raised
Mar 2026

Founder Contacts

41,000+ verified contacts

Grenoble, France

SteerLight is a startup that develops LiDAR-based optical sensors, also known as laser-based optical systems, to aid with mobility.

$2.2M raised
Mar 2024

Founder Contacts

41,000+ verified contacts

Las Condes, Chile

Aclara Resources is focused on developing Heavy Rare Earths ("HREE") mineral resources in ionic clay deposits.

$41.5M raised
Mar 2026

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

Koto, Japan

IDDK is an industrial company that offers research, manufacturing, and sales of microscopic observation devices and peripheral technologies.

$536K raised
Mar 2024

Founder Contacts

41,000+ verified contacts

Zürich, Switzerland

AlpsenTek is a company engaged in the research and development of machine vision sensors and algorithms.

Mar 2026

Founder Contacts

41,000+ verified contacts

Madrid, Spain

Eranovum manages the development and construction of renewable energy projects in Spain using new era energy infrastructure.

$18.4M raised
Mar 2026

Founder Contacts

41,000+ verified contacts

London, United Kingdom

Catches offers AI-powered knowledge hub software that centralizes and retrieves company information for teams.

$10.0M raised
Mar 2026

Founder Contacts

41,000+ verified contacts

Linköping, Sweden

Polar Light Technologies focuses on developing the next generation of Nano and micro LED technology.

Mar 2026

Founder Contacts

41,000+ verified contacts

Pleasanton, United States

Alif Semiconductor develops AI-enabled microcontrollers and embedded processors for edge computing, IoT, automotive, industrial devices.

$113.4M raised
Mar 2022

Founder Contacts

41,000+ verified contacts

Miami Beach, United States

Pioneering a new era of Mixed Reality Tokens (XRTs) that unlock premium fan experiences in sports and entertainment

$3.0M raised
Mar 2022

Founder Contacts

41,000+ verified contacts

Boulder, United States

Great Sky combines photonics, superconductors, and semiconductors. to develop AI hardware.

$14.0M raised
Mar 2026

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

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

La Jolla, United States

Astrileux designs advanced engineering technologies that enable high volume manufacturing of next generation integrated circuits (IC) chips.

Mar 2024

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

Milano, Italy

Five Elements Labs is a software company focused on web3 infrastructure and innovative DeFi products.

$1.3M raised
Mar 2022

Founder Contacts

41,000+ verified contacts

Ikoma, Japan

LENZO is a semiconductor company that builds hardware designed for modern parallel workloads from blockchain to AI inference.

$3.2M raised
Mar 2026

Founder Contacts

41,000+ verified contacts

New York, United States

Xscape Photonics provides photonic chips for high-speed connections in high-performance computing systems and data centers.

$37.0M raised
Mar 2026

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

Saratoga, United States

Eridu provides frontier networking solutions for AI, purpose-built to meet the demands of scale-out and scale-up networks.

$200.0M raised
Mar 2026

Founder Contacts

41,000+ verified contacts

Showing 326 to 350 of 693 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 693 sem companies tracked in the VCBacked database.

Average Funding
$32.6M
Total Funding Tracked
$813.9M
Countries Represented
12

Distribution by Funding Stage

Other25 companies

Top Cities for SEM

1.London
2 companies$15.2M
2.Paris
1 companies$44.1M
3.Cork
1 companies$3.2M
4.Beaverton
1 companies$7.5M
5.Grenoble
1 companies$2.2M

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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