Best Manufacturing Services Companies in Connecticut, United States
The 73 best Manufacturing Services companies in Connecticut, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: GW LaserTech.
Our analysis of 50 Manufacturing Services companies
$2.0b in tracked funding; 66% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2010.
Ranked: Best Manufacturing Services companies in Connecticut
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | GW LaserTech Manufacturer of fibre lasers | $38M | 56 mo ago | Series C | — | 2014 | Cart FunctionalityNode.jsElement UI+11 | — | — |
| 2 | Carling Tech Manufacturer of switch and circuits | $10M | 20 mo ago | Acquired | — | 1920 | DrupalApple iCloud MailPHP+15 | — | — |
| 3 | ISOPur Developer of advanced purification systems for hydraulic and lubricating oil | $8M | 282 mo ago | Series A | Curtis Knowlton Founder | 1995 | — | — | — |
| 4 | Whitman Controls Custom manufacturer of engineered pressure, vacuum, level, and temperature switches & sensors | $4M | 25 mo ago | Late Stage | Matt Powers CEO | 1968 | Cart FunctionalityWooCommerceWordPress+39 | — | — |
| 5 | Supercool Metals Offers materials designing and manufacturing services | $1M | 47 mo ago | Funding Raised | Jan Schroers Co-Founder | 2014 | — | 14 patents Flexible bulk metallic glass components for hydrogen storage and pressure vessels. | — |
| 6 | Synectic Full-service product development and manufacturing, from prototype to market | $164K | 178 mo ago | Acquired | Adam Lehman CEO & President | 1981 | WordPress Block EditorElementorCart Functionality+25 | — | — |
| 7 | Hamiltonsundstrand Developer of aerospace and industrial systems and components for multiple sectors | $20K | 14 mo ago | Public | — | 1999 | — | — | — |
| 8 | Scalable Robotics Provider of robotics fixturing, programming, and industrial training services | — | 44 mo ago | Seed | Carlos Martinez Founder Partner and CTO | 2019 | — | 13 patents Offline robot programming and teaching using 3D scanning of workspaces | — |
Top 8 Manufacturing Services companies in Connecticut
#1
Acquired · Plainville, Connecticut · founded 1920 · 247 employees$10Mraised▾
Manufacturer of switch and circuits
- Sep 2024Grant (prize money)$2.1M
- Dec 2017Grant (prize money)$1.2M
- Sep 2015Grant (prize money)$230.7K
- Aug 2015Grant (prize money)$3.8M
#2
Late Stage · Bristol, Connecticut · founded 1968 · 11 employees$4.5Mraised▾
Custom manufacturer of engineered pressure, vacuum, level, and temperature switches & sensors
- May 2024PE$4.5M
#3
Series C · Connecticut · founded 2014 · 500 employees$37.6Mraised▾
Manufacturer of fibre lasers
- Oct 2021Series C$7.8M
- Aug 2021Series C$15.5M
- Mar 2021Series C—
- Feb 2020Series B$14.3M
#4
Public · Windsor Locks, Connecticut · founded 1999 · 2599 employees$20Kraised▾
Developer of aerospace and industrial systems and components for multiple sectors. It provides engineered solutions for aircraft, industrial, and energy applications. The company focuses on designing, manufacturing, and servicing a wide array of products. These products include control systems, power systems, and sensing technologies.
- Apr 2025Grant (prize money)$20K
#5
Funding Raised · New Haven, Connecticut · founded 2014 · 6 employees$1.2Mraised▾
Manufacturer of ultrahigh strength metals designed to offer plastics-like processability. The company produces custom high-performance net-shaped components using amorphous metals and novel thermoplastic forming processes with high complexity and precision, added functionalities and advanced properties, enabling industries with optimal alternatives to conventional metal manufacturing methods.
- Jun 2022Grant (prize money)$198.9K
- Jul 2019Grant (prize money)$199.9K
- Apr 2016Grant (prize money)$689.4K
- Jan 2015Grant (prize money)$124.2K
#6
Series A · North Stonington, Connecticut · founded 1995$8Mraised▾
Developer of fluid purification systems for hydraulic and lubricating oil catering to oil and gas, power, wind and industrial hydraulics industries. The company offers sludge and varnish prevention and sub-micron purification technology, that pulls sticky sludge and varnish off the internals of machine valves, bearings, shafts and other critical parts, thereby enabling clients to improve plant uptime, reduces maintenance costs, extends the life of expensive capital equipment and reduce fluid consumption and waste disposal.
- Dec 2002Series A$8M
#7
Acquired · Milford, Connecticut · founded 1981 · 35 employees$164Kraised▾
Full-service product development and manufacturing, from prototype to market. They offer comprehensive services encompassing product strategy, industrial and electronic design, quality and regulatory management, prototype development (including 3D printing and urethane casting), design for manufacturing, new product introduction, contract manufacturing, and quality control. They serve diverse industries including medical, consumer products, capital equipment, food & beverage, and robotics. Their expertise lies in transforming product visions into market reality, ensuring compliance, functionality, and quality. They guide innovators through the complexities of product development, offering a clear path from design to market. They provide product development services, prototype development services, and contract manufacturing services. They are ISO certified, ensuring exceptional quality. They offer design guides and white papers as resources.
- Aug 2011Grant (prize money)$164K
#8
Seed · Ellington, Connecticut · founded 2019 · 6 employees—raised▾
Provider of robotics fixturing, programming, and industrial training services
- Oct 2022Seed—
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Manufacturing Services coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
What Connecticut researches in additive manufacturing
- University of Connecticut33
- Central Connecticut State University2
- VA Connecticut Healthcare System1
Common questions
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.