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SEM Startups

Updated July 2026

Companies in the sem sector developing innovative solutions and technologies.

Explore 654 recently funded sem companies with verified founder contact information and fundraising data.

Total Companies
654
Total Funding
$909.6M
Avg Funding
$36.4M
Global Reach
7
countries

Top Cities for SEM

Palo Alto
Cupertino
Santa Barbara
Irvine
San Francisco
Zürich

Recently Funded Companies

Export
Palo Alto, United States

Quattr's platform unifies SEO, analytics, and AI search into workflows that get you cited in AI answers, not just ranked in search results.

$6.0M raised
Aug 2021

Founder Contacts

30,000+ verified contacts

Cupertino, United States

Ventana delivers high-performance RISC-V CPUs with extensible instruction sets for cloud, data center, 5G, AI, and automotive markets.

$55.0M raised
Aug 2022

Founder Contacts

30,000+ verified contacts

Santa Barbara, United States

Mentium develops co-processors for AI at the Edge, specializing in mission-critical applications, both on ground and in Space.

Aug 2023

Founder Contacts

30,000+ verified contacts

Irvine, United States

TransSiP provides power saving and energy harvesting technology.

$638K raised
Aug 2023

Founder Contacts

30,000+ verified contacts

San Francisco, United States

Kura Technologies specializes in developing advanced AR glasses with cutting-edge display technology.

Aug 2023

Founder Contacts

30,000+ verified contacts

Zürich, Switzerland

Scrona is a manufacturing company that focuses on developing a wide range of semiconductor products.

$4.0M raised
Jul 2024

Founder Contacts

30,000+ verified contacts

Morrisville, United States

SWIR Vision Systems is an infrared imaging company offering the highest resolution IR sensors globally.

Jul 2023

Founder Contacts

30,000+ verified contacts

Cambridge, United Kingdom

ChipFlow is an open-source semiconductor chip design platform.

$1.5M raised
Jul 2023

Founder Contacts

30,000+ verified contacts

Guilford, United States

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

$50.0M raised
Jul 2025

Founder Contacts

30,000+ 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

30,000+ 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

30,000+ verified contacts

Austin, United States

Sluicebox connects the electronics value chain with carbon intelligence.

$4.6M raised
Jul 2025

Founder Contacts

30,000+ 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

30,000+ 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

30,000+ 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

30,000+ 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.

$150.0M raised
Jul 2021

Founder Contacts

30,000+ verified contacts

Kraków, Poland

Online sales engine for Experiences; SaaS

$888K raised
Jul 2021

Founder Contacts

30,000+ verified contacts

San Francisco, United States

Idemitsu Renewables is a renewable energy business of Idemitsu Kosan.

$61.0M raised
Jul 2022

Founder Contacts

30,000+ 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

30,000+ 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

30,000+ verified contacts

Arlington Heights, United States

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

$2.0M raised
Jul 2025

Founder Contacts

30,000+ verified contacts

Irvine, United States

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

Jul 2025

Founder Contacts

30,000+ verified contacts

Zürich, Switzerland

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

$1.5M raised
Jul 2024

Founder Contacts

30,000+ 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

30,000+ verified contacts

Toronto, Canada

Untether AI develops AI chips to enable new frontiers in AI applications.

$125.0M raised
Jul 2021

Founder Contacts

30,000+ verified contacts

Showing 51 to 75 of 654 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 654 sem companies tracked in the VCBacked database.

Average Funding
$36.4M
Total Funding Tracked
$909.6M
Countries Represented
7

Distribution by Funding Stage

Other25 companies

Top Cities for SEM

1.Palo Alto
2 companies$156.0M
2.Irvine
2 companies$638K
3.San Francisco
2 companies$61.0M
4.Zürich
2 companies$5.5M
5.Cupertino
1 companies$55.0M

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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654 SEM Startups (2026) — Recently Funded Companies, Investors & Rounds | VCBacked