50 Best Test and Measurement Companies to Watch in 2026

The most prominent test and measurement companies ranked by global prominence, funding activity, and market position. Showing the top 50 out of 2,451 companies tracked on Fsome.

2,451
Total Companies
$23.2B
Total Funding
$9.4M
Avg Funding
London
Top Location
# Company Location Employees Total Funding Last Round Last Funded
1
LaunchDarkly
LaunchDarkly is a feature management platform that allows software development t…
Oakland 251 - 500 $330.3M Series D 2021-08-10
2
AB Tasty
AB Tasty offers AI-driven experimentation, personalization, and product optimiza…
Paris 251 - 500 $65.7M Series C 2020-07-22
3
Vivoo
Vivoo is an at-home health tracker that uses urine to provide personalized recom…
San Francisco 51 - 100 $22.1M Series B 2024-07-15
4
Testlio
Testlio’s managed crowdsourced testing platform connects experts with engineerin…
San Francisco 101 - 250 $20.5M Series B 2021-10-26
5
Amperon
Amperon is an energy forecasting company that builds AI-powered electricity anal…
Houston 101 - 250 $31.0M Series Unknown 2026-01-13
6
SiC Systems
SiC Systems is a cutting-edge technology startup that integrates advanced AI age…
Nashville 1 - 10 $2.5M Pre Seed 2025-10-14
7
Optics11
Maritime Defense and Energy Solutions
Amsterdam 51 - 100 $53.0M Debt Financing 2026-01-15
8
LEON
Leon belives that food should taste good and do you good.
London 501 - 1K $32.6M Series Unknown 2017-05-19
9
iSpot.tv
iSpot.tv provides real-time TV ad data and analytics by connecting TV impression…
Bellevue 251 - 500 $382.8M Private Equity 2022-04-27
10
Keysight Technologies
Keysight Technologies is an electronic measurement company.
Santa Rosa c 10001 max $1.4B Post Ipo Debt 2025-04-10
11
Haus
Haus is a marketing science platform that helps brands understand the true busin…
Mountain View 51 - 100 $61.1M Series Unknown 2025-04-18
12
Density
Density builds the technical infrastructure for cities, buildings, and spaces to…
San Francisco 101 - 250 $217.2M Series D 2021-11-10
13
Mirion Technologies
Mirion Technologies is provides radiation detection, and monitoring solutions fo…
Irvine 1K - 5K $3.0B Post Ipo Debt 2025-11-06
14
Inocras
Inocras provides AI-driven genomic analysis focused on cancer and rare diseases.
San Diego 51 - 100 $52.7M Series Unknown 2024-12-05
15
Eppo
Eppo provides an AB experimentation and feature management platform to make test…
San Francisco 51 - 100 $47.5M Series B 2024-08-20
16
Unleash
Unleash is an enterprise-ready open source feature management platform.
Oslo 11 - 50 $14.0M Series B 2026-03-04
17
Scarlet
Europe’s only Notified Body specialised in software and AI.
London 51 - 100 $26.6M Series A 2024-06-14
18
comScore
comScore is a cross-platform measurement company that measures audiences, brands…
Reston 1K - 5K $673.3M Post Ipo Equity 2025-09-29
19
Soda
Soda is a software company that provides data quality solutions through testing …
Brussels 11 - 50 $31.5M Series Unknown 2024-07-11
20
Applause
Applause is a crowd-sourced digital quality testing enabling companies to delive…
Framingham 251 - 500 $115.8M Series F 2016-09-14
21
MEQ Probe
MEQ Probe offers tech solutions for real-time meat measurement using AI and lase…
Reservoir 11 - 50 $15.8M Series A 2025-12-15
22
Aptimmune
Aptimmune is a biotechnology company that specializes on developing mucosal vacc…
St Louis 1 - 10 $8.8M Convertible Note 2022-01-10
23
Synthesized
Deliver compliant production-like data to testing and development teams for any …
London 11 - 50 $22.8M Series A 2025-09-24
24
GrowthBook
GrowthBook is an open source feature flagging and experimentation platform
Anaheim 11 - 50 $23.1M Series A 2025-07-01
25
Mitera Biosciences
Mitera Biosciences is a biotech innovator using non-invasive skin epigenetics to…
Bellevue 1 - 10 $1.8M Seed 2025-12-30
26
Quantum Diamonds
Quantum Diamonds provides described nitrogen-vacancy diamonds for quantum sensin…
Garching Bei M├╝nchen 11 - 50 $7.7M Seed 2023-11-27
27
Nair Electronics
Nair Electronics is a domestic aviation sensor company that develops and owns fu…
Xiamen 11 - 50 $71.1M Series D 2025-12-31
28
TRACT
TRACT operates as an innovative platform for measuring sustainability performanc…
Amsterdam 11 - 50 $32.8M Series A 2025-10-23
29
Fluid-Screen
Fluid-Screen is a biotech company that provides chip technology for bacterial ca…
Beverly 1 - 10 $10.3M Series A 2022-05-31
30
CPTx
CPTx develops single-stranded DNA products to neutralize viruses and address inf…
Planegg 11 - 50 $29.0M Series Unknown 2024-09-12
31
Dynata
Dynata engages in first-party data and data services.
Plano 1K - 5K $31.5M Debt Financing 2024-05-28
32
Byterat
Byterat is a modern cloud platform for battery data analytics.
San Francisco 1 - 10 $4.5M Seed 2023-10-27
33
Quantifi Photonics
Quantifi Photonics is a telecommunications equipment supply company that special…
Auckland 51 - 100 $29.0M Grant 2024-07-01
34
OXZO
OXZO offers oxygenation solutions for aquaculture with its Oxymar® platform.
Puerto Varas 251 - 500 $25.0M Series Unknown 2025-12-04
35
TVision
TVision is an audience measurement company that provides information on TV and c…
New York 51 - 100 $58.2M Debt Financing 2024-12-16
36
Output Sports
Output Sports operates as a sports tech start-up.
Dublin 11 - 50 $8.8M Seed 2025-01-30
37
GravitHy
GravitHy is an iron manufacturing firm producing DRI/HBI through hydrogen reduct…
Marseille 11 - 50 $64.4M Series Unknown 2025-03-26
38
Qualis
Qualis provides technical services in the areas of engineering analysis, testing…
Huntsville 251 - 500 $3.2M Series Unknown 2025-03-06
39
Altimmune
Altimmune focused on the development of products to stimulate robust and durable…
Gaithersburg 51 - 100 $66.4M Post Ipo Debt 2025-05-13
40
Speedscale
Speedscale allows users to stress test cloud services with real-world scenarios.
Atlanta 1 - 10 $12.0M Pre Seed 2023-03-07
41
Stilla Technologies
Stilla Technologies is a Paris-based european biotechnology company.
Villejuif 51 - 100 $101.7M Series C 2024-02-22
42
Testkube
Testkube is a Kubernetes-native testing framework for automating test executions…
Wilmington 11 - 50 $8.0M Series A 2025-09-23
43
Longshot Space Technologies
Longshot Space develops hypersonic launch technologies to reduce space launch co…
Emeryville 1 - 10 $6.5M Series Unknown 2025-06-27
44
test.ai
test.ai provides an AI-powered test automation platform to help organizations de…
San Francisco 11 - 50 $17.6M Series A 2018-07-31
45
4Moving Biotech
4Moving Biotech is a biopharmaceutical company that develops osteoarthritis drug…
Lille 1 - 10 $22.6M Debt Financing 2026-02-10
46
BrightSpec
Brightspec provides analytical chemistry solutions using FT-MRR spectroscopy, a …
Charlottesville 1 - 10 $21.1M Series C 2022-12-14
47
RTDT Laboratories
RTDT is a No-code SaaS for Structural Health Monitoring of wind turbines.
Z├╝rich 1 - 10 $4.2M Pre Seed 2025-07-01
48
Kameleoon
Kameleoon is the most advanced optimization platform on the market. Simple, fast…
Paris 11 - 50 $8.1M Series Unknown 2019-07-01
49
Macro Biologics
Macro Biologics creates synthetic biological polymers for therapeutic and biotec…
Carlsbad 11 - 50 $5.0M Grant 2025-12-16
50
Collo
Collo provides industrial areas with resolution liquid-particle mixture sensors …
Tampere 11 - 50 $5.5M Series Unknown 2024-08-13