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SEM Startups

Updated September 2026

Companies in the sem sector developing innovative solutions and technologies.

Explore 681 recently funded sem companies with verified founder contact information and fundraising data.

Total Companies
681
Total Funding
$1.3B
Avg Funding
$50.7M
Global Reach
7
countries

Top Cities for SEM

Guilford
Sydney
Lexington
Austin
Edinburgh
Goleta

Recently Funded Companies

Export
Guilford, United States

Quantum SI offers Next Generation Protein Sequencing that makes diagnostics digital.

$50.0M raised
Jul 2025

Founder Contacts

41,000+ verified contacts

Sydney, Australia

Millibeam is an semiconductor firm that specializes in the creation of advanced radio-frequency and millimeter wave chipsets.

$3.0M raised
Jul 2024

Founder Contacts

41,000+ verified contacts

Lexington, United States

Xooker is a mobile-commerce platform that helps local businesses Attract, Acquire, Engage and Reward their customers via mobile devices.

Jul 2023

Founder Contacts

41,000+ verified contacts

Austin, United States

Sluicebox connects the electronics value chain with carbon intelligence.

$4.6M raised
Jul 2025

Founder Contacts

41,000+ verified contacts

Edinburgh, United Kingdom

Chromacity Lasers is a spin-out from Heriot-Watt University, one of the UK’s leading technical universities with a focus on photonics.

$1.3M raised
Jul 2024

Founder Contacts

41,000+ verified contacts

Goleta, United States

ChipAgents revolutionizes chip design and verification with Agentic AI, boosting RTL productivity 10x for smarter, faster innovation.

$60.0M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Santa Clara, United States

Eliyan develops chiplet interconnect and connectivity solutions that improve bandwidth and power efficiency for AI systems.

$145.0M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Santa Clara, United States

Provider of breakthrough e-beam lithography solution for cost-effective production of leading-edge semiconductors and rapid time to market.

$31.0M raised
Jul 2025

Founder Contacts

41,000+ verified contacts

Sunnyvale, United States

Tensordyne is a technology company involved in building AI math, chips, hardware, and software in order to make AI affordable and efficient.

$35.0M raised
Jul 2025

Founder Contacts

41,000+ verified contacts

Palo Alto, United States

Algolia is the Search-as-a-Service platform that enables companies to deliver fast and relevant digital experiences that drive real results.

Jul 2021

Founder Contacts

41,000+ verified contacts

Kraków, Poland

Online sales engine for Experiences; SaaS

$888K raised
Jul 2021

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Idemitsu Renewables is a renewable energy business of Idemitsu Kosan.

$61.0M raised
Jul 2022

Founder Contacts

41,000+ verified contacts

Baltimore, United States

Oculi is a deep-tech fabless company that offers patented visual AI privacy-first platform with embedded technology for businesses.

$3.0M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Sofia, Bulgaria

Renalfa is a clean energy investment group with focus in renewable energy and e-mobility.

$370.3M raised
Jul 2025

Founder Contacts

41,000+ verified contacts

San Jose, United States

Etched is an AI chip startup that designs and manufactures hardware systems optimized for artificial intelligence model inference workloads.

$300.0M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Yonkers, United States

Hughes Energy Group is a green tech, fiber production company providing a low-carbon solution to recycling organic waste.

$3.7M raised
Jul 2025

Founder Contacts

41,000+ verified contacts

Los Angeles, United States

Qolab is a technology company that engaged in research and development of superconducting quantum computers.

$54.2M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Neuchâtel, Switzerland

CCRAFT is a manufacturer of thin-film lithium niobate and photonic integrated circuits.

$7.8M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Arlington Heights, United States

Tagore Technology is a semiconductor company that manufactures radio frequency products.

$2.0M raised
Jul 2025

Founder Contacts

41,000+ verified contacts

Irvine, United States

AONDevices provides super-low power edge AI solutions, including chips, algorithms, and software.

Jul 2025

Founder Contacts

41,000+ verified contacts

Palo Alto, United States

PsiQuantum develops quantum computer using photonic qubits and silicon photonics to build fault-tolerant quantum computing systems.

$125.0M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Zürich, Switzerland

NematX offers novel materials and comprehensive industrial 3D printing solutions for various industries.

$1.5M raised
Jul 2024

Founder Contacts

41,000+ verified contacts

Atlanta, United States

Carbice is developing a product used to dissipate heat away from product packaging to stop electronic devices from overheating.

Jul 2026

Founder Contacts

41,000+ verified contacts

Leipzig, Germany

B2B Generative AI Document Search

$4.6M raised
Jul 2026

Founder Contacts

41,000+ verified contacts

Newport, United Kingdom

CSA Catapult is a non-profit organisation that aims to accelerate growth in sectors that use compound semiconductors.

$3.2M raised
Jul 2023

Founder Contacts

41,000+ verified contacts

Showing 76 to 100 of 681 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 681 sem companies tracked in the VCBacked database.

Average Funding
$50.7M
Total Funding Tracked
$1.3B
Countries Represented
7

Distribution by Funding Stage

Other25 companies

Top Cities for SEM

1.Santa Clara
2 companies$176.0M
2.Palo Alto
2 companies$125.0M
3.Guilford
1 companies$50.0M
4.Sydney
1 companies$3.0M
5.Lexington
1 companiesUndisclosed

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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