Vexlum
Vexlum

Vexlum

Measured by AhrefsDR39Ahrefs DR: 39/100. Below median. Measured by Ahrefs. Median 44.Measured by StartupHub.aiAgent21Agent Readiness: 21/100. Bottom 25%. Measured by StartupHub.ai. Median 41.Measured by Google PageSpeedSpeed68Site Speed: 68/100. Above median. Measured by Google PageSpeed. Median 62.Measured by StartupHub.aiTrust72Data Trust: 72/100. Above median. Measured by StartupHub.ai. Median 61.

Developing compact, cost-effective, high-power laser sources at precise wavelengths for quantum computing, atomic clocks, and other advanced technologies.

2017Active21Tampere, Finland

About

Vexlum specializes in III-V semiconductors, essential for lasers, solar cells, and detectors. Their proprietary VECSEL (Vertical-External-Cavity Surface-Emitting Laser) technology addresses a critical bottleneck in high-tech industries by providing compact, cost-effective, high-power laser sources at precise wavelengths. This enables the scaling up of technologies such as quantum computing and atomic clocks.

Key facts

Website
vexlum.com
Headquarters
Tampere, Finland
Founded
2017
Employees
21
Total funding
$18M (Seed)
Business model
B2B

Funding rounds

Funding rounds raised by Vexlum
DateRoundAmountLead investors
5 Feb 2026Seed$11M
13 Mar 2024Grant (prize money)$7M

Tech stack

Detected on vexlum.com, last scanned 21 Oct 2026.

Frontend
Bootstrap
Analytics
Google Analytics 4, Google Tag Manager
SEO
Yoast SEO
CMS / Builders
WordPress
Email provider
Microsoft 365
Cookie consent
CookieHub

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Frequently asked

What does Vexlum do?

The company is vertically integrated, controlling the process from chip fabrication to final system assembly. Vexlum's technology originated from over 20 years of research at the Optoelectronics Research Centre (ORC) in Tampere, Finland, with a key collaboration with NIST in 2012 leading to the company's spinout in 2017. They are expanding from boutique production to industrial-scale capability to meet demand from the quantum, semiconductor, and space sectors.

Is Vexlum trustworthy and reputable?

StartupHub's Data Trust & Reputation score for Vexlum is 72 out of 100, a generally safe rating, based on site security posture, privacy practices, malware and phishing checks, and public reputation signals.

How much funding has Vexlum raised?

Vexlum has raised a total of $18M in funding. The most recent round on record is Seed.

How many employees does Vexlum have?

Vexlum has approximately 21 people on record.

Public record

SEC filings, insider activity, nonprofit links and pay benchmarks for Vexlum