Best High Tech Companies in Connecticut, United States
The 150 best High Tech companies in Connecticut, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Keurig.
Our analysis of 306 High Tech companies
$95.7b in tracked funding; 95% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best High Tech companies in Connecticut
| # | Company | Disclosed funding | Last round | Employees | Founder | Tech stack | Web popularity | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Keurig Provider of smart brewing coffee makers | $1.4B | 146 mo ago | 3,424 | — | Cart FunctionalitySAP Commerce CloudJava+40 | Top 50k | 235 patents Single‑serve coffee brewing systems with cartridge design and automated water/valve control | 1 launch |
| 2 | Quantum Circuits Develops quantum computers using superconducting quantum circuits | $105M | 22 mo ago | 20 20 → 26 (+30%) | Michel Devoret Co-Founder & CSO | WordPressMySQLPHP+19 | Top 10M | 10 patents Quantum photonic entangling gates, cryogenic‑room‑temp interfaces, and qubit resistive attenuators. | — |
| 3 | Budderfly Provider of energy management solutions and services for buildings 76Innovation top 19%Patents top 19%Funding top 22%Growth top 27% All 11 signals ▾Innovationtop 19% Patentstop 19% Fundingtop 22% Growthtop 27% Newstop 30% Moattop 32% Producttop 33% Techtop 41% Talenttop 41% Marketbottom 49% Globalbottom 36% Innovation: 68 patents (top 23% of patent-holders) · 43 filings since 2022 vs 9 in 2017-21 Patents: 68 patents matched (strict assignee match) · 43 filings since 2022 vs 9 in 2017-21 rank vs industry peers · Fliar Intelligence Index 76/100 | $85M | 2 mo ago | 103 | Al Subbloie Founder & CEO | HubSpot CMS HubApple iCloud MailZoho+29 | Top 5M | 68 patents Patents concentrated in computing, sensing & instrumentation | 2 partnerships |
| 4 | Prepared Developer of AI-powered platform for public safety emergency response management 53Funding top 21%Talent top 28%Product top 36%Moat top 39% All 10 signals ▾Fundingtop 21% Talenttop 28% Producttop 36% Moattop 39% AItop 45% Techtop 48% Growthbottom 40% Marketbottom 39% Globalbottom 36% Newsbottom 29% Funding: Raised $52.8M across 7 rounds · 7 rounds over 4 yrs (1.8/yr) Talent: 3 named leaders on record · 3 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 53/100 | $53M | 12 mo ago | 42 | Neal Soni Co-Founder | WebflowAmazon Web Servicescore-js+23 | Top 5M | — | — |
| 5 | NanoViricides Targeted antiviral therapeutics 14Funding top 26%Moat top 48%Growth bottom 40%News bottom 35% All 7 signals ▾Fundingtop 26% Moattop 48% Growthbottom 40% Newsbottom 35% Globalbottom 30% Marketbottom 29% Techbottom 24% Funding: Raised $47.0M across 7 rounds · 7 rounds over 15 yrs (0.5/yr) Moat: Editorial + unicorn rating 5/10 · 10 curated direct competitors tracked rank vs industry peers · Fliar Intelligence Index 14/100 | $47M | 7 mo ago | 17 | — | RequireJSHSTSOpen Graph | Top 10M | — | — |
| 6 | Ion Torrent Next generation sequencing using semiconductor technology. | $37M | 195 mo ago | — | Jonathan Rothberg Founder & CEO | — | — | — | — |
| 7 | CAS Medical Systems Provider of Vital Signs Monitors & Accessories | $33M | 119 mo ago | 73 | — | — | — | — | — |
| 8 | Wellinks Provider of virtual pulmonary rehabilitation and personalized chronic obstructive pulmonary disease management 37Moat top 31%Funding top 33%Growth top 40%Tech top 44% All 9 signals ▾Moattop 31% Fundingtop 33% Growthtop 40% Techtop 44% Talentbottom 49% Patentsbottom 38% Marketbottom 36% Innovationbottom 35% Globalbottom 31% Moat: Editorial + unicorn rating 7/10 · IP moat: 13 patents Funding: Raised $26.1M across 6 rounds · 6 rounds over 12 yrs (0.5/yr) rank vs industry peers · Fliar Intelligence Index 37/100 | $26M | 13 mo ago | 41 | Stacie Bratcher Chief Executive Officer | WebflowApple iCloud MailMicrosoft 365+23 | Top 10M | 13 patents Patents concentrated in health & consumer products | — |
| 9 | Wearsafe Internet-first brand offering safety wearables | $26M | 43 mo ago | 7 | Phillip Giancarlo Co-Founder & CTO | — | — | 22 patents Short-range wireless motion/location sensors in wearable safety devices for emergency reporting | — |
| 10 | Z-Medica Provider of hemostatic products for bleeding control | $25M | 165 mo ago | 124 | — | — | — | — | — |
| 11 | FitLinxx Provider of wireless wearable fitness solutions | $13M | 202 mo ago | 52 | Keith Camhi Co-Founder & CEO | — | — | 12 patents Wearable health-monitoring sensors with data fusion and audio device‑to‑device communication. | — |
| 12 | Polarity Enterprise knowledge augmentation and collaboration platform | $13M | 37 mo ago | 20 | Joseph Rivela Chief Strategy Officer / Co-Founder | — | — | 10 patents Patents concentrated in electrical & electronics | — |
| 13 | Mango DSP Platform for gamers seeking trusted online gaming sites and tech insights | $12M | 241 mo ago | 3 | Baruch Peled Founder & CEO | — | — | — | — |
| 14 | Surrey NanoSystems Developer of ultra-black coatings and materials for aerospace and other applications | $12M | 171 mo ago | 32 | David Wong Co-CEO | PHPFacebook LoginZURB Foundation+14 | Top 10M | — | 2 launchs |
| 15 | Weave AI-powered platform to accelerate investigational new drug submission | $10M | 8 mo ago | 9 | Umut Eser Co-Founder & Chief AI Officer | — | — | — | — |
| 16 | EverWorker Developer of an AI platform providing AI workforce solutions | $10M | 16 mo ago | — | Anton Antich Co-Founder & CPO | HubSpot CMS Hubcore-jsPreact+15 | Top 5M | — | 2 launchs |
| 17 | AION Biosystems AI-driven remote monitoring platform for providers | $9M | 26 mo ago | 20 | Samara Barend CEO | WordPressMySQLPHP+29 | Top 50M | 12 patents Wearable skin-contact sensors and AI-driven low-power monitoring of vital physiological signals | — |
| 18 | bastion Bastion is a lending, borrowing and exchange protocol built on Aurora, the Ethereum-compatible layer of the… | $9M | 49 mo ago | 5 | — | — | — | 34 patents Downhole pressure generation and tubular manipulation systems for oil‑field drilling. | — |
| 19 | Intelescope Provider of forestry analytics via imagery | $8M | 134 mo ago | — | Steven Schlussel Co-Founder & CEO | — | — | — | — |
| 20 | ZetrOZ Manufacturer of non-invasive medical devices that accelerate tissue healing and relieve pain 32Moat top 32%Growth top 35%Funding top 38%Patents top 46% All 8 signals ▾Moattop 32% Growthtop 35% Fundingtop 38% Patentstop 46% Innovationtop 47% Techbottom 43% Globalbottom 36% Marketbottom 19% Moat: Editorial + unicorn rating 7/10 · IP moat: 41 patents Growth: Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 32/100 | $7M | 9 mo ago | 10 | — | WordPressMySQLPHP+16 | Top 50M | 41 patents Therapeutic wearable/portable ultrasound devices and low-profile transducer coupling technologies | — |
| 21 | Magik Eye Provider of 3D image sensors for VR applications | $6M | 90 mo ago | 17 | Takeo Miyazawa Founder & CEO | — | — | 156 patents Patents concentrated in computing, sensing & instrumentation | — |
| 22 | Sonata Scientific Provider of light-activated anti-microbial nanomaterials | $5M | 45 mo ago | 7 | — | — | — | — | — |
| 23 | CertaScan Newborn footprinting solution for hospitals, enhancing infant identification and safety | $5M | 99 mo ago | 10 | — | — | — | — | 1 partnership |
| 24 | ValidSoft Provider of voice biometrics and deepfake protection security authentication solutions 57AI top 20%Innovation top 23%Product top 26%Funding top 37% All 9 signals ▾AItop 20% Innovationtop 23% Producttop 26% Fundingtop 37% Moattop 48% Talentbottom 49% Techbottom 46% Globalbottom 44% Marketbottom 31% AI: Classified as an AI company Innovation: 8 product lines · Deep-tech classification: Artificial Intelligence rank vs industry peers · Fliar Intelligence Index 57/100 | $4M | 3 mo ago | 17 17 → 37 (+118%) | Pat Carroll Founder & CEO & Executive Chairman | — | — | — | — |
| 25 | WaveAerospace UAVs for military operations | $4M | 34 mo ago | — | Mark Strauss Co-Founder & CEO | WordPressMySQLPHP+9 | Top 50M | — | — |
| 26 | Sekai Electronics Ruggedized video systems for military, aerospace, and harsh environments | $4M | 142 mo ago | 14 | Roland Soohoo CEO & President | — | — | — | — |
| 27 | SRS Provider of a platform for commercial property assessed clean energy programs | $4M | 149 mo ago | 11 | — | — | — | 117 patents Real-time audio signal processing, adaptive object streaming, and immersive sound rendering | — |
| 28 | Basic6 Integrating multiple clouds in a single console | $4M | 117 mo ago | 8 | Edward Samson Founder & CEO | — | — | 17 patents Patents concentrated in electrical & electronics | — |
| 29 | Yobe Provides AI based customer voice analysis solutions | $4M | 24 mo ago | 5 | — | — | — | 7 patents Voice biometric and speaker ID via high‑frequency attack/release audio processing | — |
| 30 | Revise Decentralized tools for building an NFT marketplace | $4M | 49 mo ago | 11 | Raunaq Vaisoha Co-Founder & CEO | — | — | — | — |
| 31 | Elidah Provider of non-invasive home device for strengthening pelvic muscles control | $3M | 36 mo ago | 7 | Gloria Kolb Co-Founder & CEO | — | — | 15 patents Electrical stimulation devices for urinary incontinence therapy | 1 launch · 1 award |
| 32 | CerePlast Information hub for surveys, login portals, and online ticket payments | $3M | 194 mo ago | 24 | — | — | — | 32 patents Biodegradable polymer blends using bio-based fillers (algae, starch) and high‑heat PLA. | — |
| 33 | Peer Robotics Provider of automated robotic solutions for warehouse material handling | $2M | 12 mo ago | 13 | Alok Kumar Co-Founder & CTO | WebflowSplidecore-js+14 | Top 10M | — | — |
| 34 | GXO Provider of AI-enabled warehouse automation solutions | $2M | 30 mo ago | 22,424 22,424 → 36,739 (+64%) | Malcolm Wilson CEO | DrupalApple iCloud MailPHP+30 | Top 500k | — | 1 partnership |
| 35 | Aquiline Drones Provides drone-based services to enterprises | $2M | 49 mo ago | 36 | Barry Alexander Co-Founder & CEO | WordPressMySQLPHP+12 | Top 50M | — | 3 partnerships |
| 36 | Ambio Health Wireless remote health and activity monitoring system for better home living | $2M | 146 mo ago | 4 | Alden Stevens Co-Founder and President | — | — | — | — |
| 37 | D.GS Provider of pet products using nanotechnology | $2M | 105 mo ago | 3 | Chris Onthank Founder & CEO | Cart FunctionalityShopifyPlyr+30 | Top 10M | — | — |
| 38 | Predictably Human Provider of a device for remote monitoring for addiction treatments and support for chronic conditions | $2M | 17 mo ago | 6 | Carl Marci Co-Founder | — | — | — | — |
| 39 | ROM Technologies Provider of clinician-controlled at-home physical therapy devices | $1M | 29 mo ago | 206 | Peter Arn CEO | WordPress Block EditorWordPressSentry+34 | Top 5M | — | 1 job opening |
| 40 | DIANT Pharma Developer of technology for the synthesis of nanoparticles | $1M | 44 mo ago | 9 | Diane Burgess Co-Founder | WordPressMySQLPHP+21 | Top 50M | — | — |
| 41 | Target Arm Develops launching platform for drones | $1M | 64 mo ago | 10 | Jeffrey Mcchesney Chairman | WixSentryBootstrap+9 | Top 50M | — | 1 partnership |
| 42 | A.D.A.M. Provider of on-demand 3D printing services for orthopedics | $558K | 32 mo ago | 19 | Denys Gurak CEO and Founder | — | — | — | — |
| 43 | Aircaps Developer of smart glasses providing real-time captions and language translations | $500K | 8 mo ago | — | Nirbhay Narang Co-Founder & CTO | Node.jsZohoVimeo+26 | Top 10M | — | — |
| 44 | Mobile Sense Technologies Wearable connected wristband for ECG monitoring and arrythmia detection | $500K | 113 mo ago | 3 | — | — | — | — | — |
| 45 | NXT-ID Provider of medical alert devices and personal emergency response systems | $244K | 85 mo ago | 25 | — | — | — | 52 patents Patents concentrated in computing, sensing & instrumentation | — |
| 46 | DefenCall Safety solutions provider offering panic/duress button apps and community protection | $200K | 159 mo ago | 11 | Jim Ackerly Founder & CEO | — | — | — | — |
| 47 | futuresTHRIVE AI-based mental health screening device for individuals and employees | $100K | 51 mo ago | 3 | Wendy Ward Founder | — | — | — | — |
Top 12 High Tech companies in Connecticut
#1
Acquired · Shelton, Connecticut · founded 2007 · 103 employees$84.8Mraised▾
Provider of energy management solutions and services for buildings. It provides integrated light switches to monitor and control lighting loads, advanced power strips to monitor and control plug load at the workstation level, temperature sensors, and electrical panel-level monitoring devices to monitor load at each level and report back to central software. It caters to corporations, municipal governments, colleges, universities, and manufacturers.
- Mar 2026Conventional Debt$550M
- Jun 2025Conventional Debt$100M
- Jan 2024Conventional Debt$400M
- Oct 2020Series B$7.8M
#2
Public · West Haven, Connecticut · founded 2005 · 17 employees$47Mraised▾
NanoViricides discovers, develops and commercializes therapeutics to treat viral infections. Nanoviricide is an antiviral agent based on the TheraCour polymeric micelle technology. This is a biomimetic platform technology has enabled the Company to rapidly develop highly effective drug candidates against a number of viral diseases. Currently developing drugs against five diseases: FluCide, a single drug against all influenzas including pandemic viruses, bird flu (H5N1), and highly pathogenic strains; HIVCide, which was found to be so effective in SCID-hu mouse model studies that it is widely believed that it could result in a “functional cure” of HIV/AIDS; HerpeCide for oral and genital herpes; DengueCide, a single drug to combat all dengue virus types; and a broad-spectrum antiviral for infections of the external eye.
- Nov 2025Post IPO$6M
- Feb 2019Post IPO$2.5M
- Jan 2014Post IPO$20M
- Feb 2013Post IPO$6M
#3
Acquired · Hartford, Connecticut · founded 2003 · 17 employees$4.2Mraised▾
Provider of voice biometrics and deepfake protection security authentication solutions. The company delivers voice identity assurance for contact centers and omnichannel communications. It offers digit-based voice authentication, speech analysis algorithms, and multi-factor authentication. The business provides technology that detects synthetically generated speech from genuine human speech.
- Mar 2026Series A$449.3K
- Mar 2025Series A$260K
- Mar 2023Series A$300K
- Mar 2021Series A$12.9M
#4
Acquired · New Haven, Connecticut · founded 2019 · 42 employees$52.8Mraised▾
Developer of AI-powered platform for public safety emergency response management. The platform offers call-taking, dispatch, and quality assurance tools. It facilitates translation services to overcome language barriers. The platform also provides training and coaching resources for staff development. It aims to improve situational awareness through media and text functionalities.
- May 2025Series C$80M
- Oct 2024Series B$27M
- Oct 2023Series A$16M
- Apr 2022Seed$9.8M
#5
Series A · New Haven, Connecticut · founded 2022 · 9 employees$10Mraised▾
AI-powered platform to accelerate investigational new drug submission. The platform accelerate document drafting, navigate complex source documents, streamline reviews, and automatic content updates. It has applications for pharmaceutical companies, biotech, and regulatory consultants.
- Oct 2025Series A$20M
- May 2024Seed$10M
- Aug 2022Seed$1.6M
#6
Series A · New Haven, Connecticut · founded 2013 · 41 employees$26.1Mraised▾
Provider of virtual pulmonary rehabilitation and personalized chronic obstructive pulmonary disease management. The company offers programs for respiratory health through virtual pulmonary rehabilitation and personalized care management. It delivers clinical coaching support, at-home monitoring, and educational resources. The company aims to improve clinical outcomes and access to personalized care.
- May 2025Series A$2.4M
- Nov 2021Series A$25M
- Jul 2018Seed$50K
- Dec 2016Seed$795K
#7
Series A · Trumbull, Connecticut · founded 2009 · 10 employees$6.8Mraised▾
Manufacturer of non-invasive medical devices that accelerate tissue healing and relieve pain. The company develops wearable bioelectronic devices for sustained acoustic medicine delivery. The product line is designed for treating acute and chronic musculoskeletal conditions. The devices enhance tissue recovery and accelerate the body’s natural healing processes.
- Aug 2025Grant (prize money)$4.5M
- Feb 2025Grant (prize money)$4.5M
- Feb 2025Grant (prize money)$4.5M
- Oct 2020Grant (prize money)—
#8
Acquired · New Haven, Connecticut · founded 2015 · 20 employees$104.6Mraised▾
Quantum Circuits Inc. is a Yale University spin-off that designs superconducting quantum computing systems. It intends to develop modular quantum computers that can be reconfigured multiple times to function as computing systems for drug discovery and genetics, financial applications, industrial design functions, etc. As of November 2017, its products include hardware such as quantum-limited parametric amplifiers and other hardware devices. It intends to use its Series A funding round to build larger software teams as well.
- Aug 2024Series B$60M
- Feb 2024Series B$26.6M
- Nov 2017Series A$18M
#9
Seed · Greenwich, Connecticut · founded 2025$10Mraised▾
Developer of an AI platform providing AI workforce solutions. The platform enables users to create customized AI workers for various business functions. These AI workers can be deployed across departments like finance, operations, marketing, and human resources. The company offers services and training to help organizations implement AI workforces.
- Feb 2025Seed$10M
#10
Seed · New Haven, Connecticut · founded 2019 · 13 employees$2.4Mraised▾
Provider of automated robotic solutions for warehouse material handling. It delivers human-centric and adaptable mobile robots for material movement in warehousing, manufacturing, and assembly lines. It offers features for warehouse material picking, packaging, sorting, and visual inspection. It loops while automating the daily mundane tasks.
- Jun 2025Seed$2M
- Sep 2022Seed$2.3M
- Jan 2021Seed$20K
- Sep 2020Seed$72.9K
#11
Seed · New Haven, Connecticut · founded 2024$500Kraised▾
Developer of smart glasses providing real-time captions and language translations. The glasses offer transcription, noise reduction, and speaker recognition. They are designed to augment conversations, maintaining eye contact and keeping hands free. The glasses support multiple languages and are designed for all-day wearability.
- Sep 2025Seed$500K
#12
Acquired · Waterbury, Connecticut · founded 1992 · 3424 employees$1.4Braised▾
Provider of smart brewing coffee makers. The company supplies gourmet coffee, tea, and iced beverages of various brands as K-Cup portion packs. It markets its brewers and K-Cup portion packs through a network of local and national retailers, and grocery stores. The vending machine can be connected to the phone devices for customization of coffee based on temperature, taste, cup sizes, flavor and aroma, etc.
- Apr 2014Series E$105.5M
- Feb 2014Series E$1.3B
- Sep 2012Series D—
- Aug 2008Conventional Debt$18M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of High Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Semiconductors in Connecticut is moving
A read on the academic research around Semiconductors in Connecticut — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 51 papers.
Connecticut's University of Connecticut leads optimistic semiconductor research (mean stance 0.69) focusing on hardware security, integrated circuits, and VLSI testing, with breakthroughs dominating older pre-2020 work.
- University of Connecticut49
- Central Connecticut State University1
- Southern Connecticut State University1
- Integrated circuit14
- Chip11
- Embedded system9
- Overhead (engineering)7
- Electronic engineering6
- Integrated circuit5
- Embedded system5
- Reliability (semiconductor)3
- Electronic circuit3
- Hardware Trojan3
- Trojan2
- Hardware Trojan2
- Integrated circuit2
- Trustworthiness1
- Intellectual property1
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.