# 50 leading Telecommunications companies in New York State

Tamtam tracks 56 Telecommunications companies headquartered in New York State. This list ranks the 50 largest by number of employees on LinkedIn, led by Optimum, Altice USA and PT (Performance Technologies, Inc.). Their median headcount is 176. Half of them were founded in 1996 or later. The most common headquarters are New York (19), Syracuse (4) and Queens (3).

This selection of telecommunications companies in New York State comprises mostly large and mid-sized firms. They offer a range of services, from high-speed broadband and mobile services to advanced network solutions and fiber-optic connectivity. Companies like Optimum and Altice USA provide internet, mobile, and entertainment services, while PT (Performance Technologies, Inc.) specializes in signaling systems and gateways for telecom networks. IPC Systems offers SaaS communications platforms and electronic trading connectivity.

A notable pattern among these companies is the concentration of headquarters in New York City and its surrounding areas, including Queens, Bethpage, and Staten Island. Many of these firms were founded between the 1980s and early 2000s, indicating a mature sector, though some newer companies like JMA Wireless (2012) and US Mobile (2014) also feature.

🇺🇸 New York State · 50 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Optimum](https://www.tamtam.ai/c/optimum-queens) (optimum.com)<br>Optimum, a brand of Altice USA, offers reliable internet service with Optimum Mobile on America's largest 5G network and up to 8 Gig Fiber Internet speeds | Telecommunications | 🇺🇸 Queens | 8,331 |  |
| 2 | [Altice USA](https://www.tamtam.ai/c/altice-usa) (alticeusa.com)<br>Provider of high-speed broadband, mobile, entertainment, voice services, local news content, and advanced advertising across 21 states. | Telecommunications | 🇺🇸 Queens | 6,646 |  |
| 3 | [PT (Performance Technologies, Inc.)](https://www.tamtam.ai/c/pt-performance-technologies-inc) (pt.com)<br>Global supplier of advanced network solutions offering signaling systems for telecom networks and gateways for IP interworking in various industries | Telecommunications | 🇺🇸 Rochester | 5,805 | 1981 |
| 4 | [Cablevision](https://www.tamtam.ai/c/cablevision) (linkedin.com)<br>A telecommunications company formerly known as Cablevision, now operating as Altice USA Follow us on LinkedIn for updates and news | Telecommunications | 🇺🇸 Bethpage | 3,179 |  |
| 5 | [Mediacom Communications](https://www.tamtam.ai/c/mediacom-communications) (mediacomcable.com)<br>Provides video, high-speed data, phone, home security, automation, broadband solutions, advertising, and production services to households and businesses. | Telecommunications | 🇺🇸 Mediacom Park | 2,495 | 1995 |
| 6 | [Bright House Networks](https://www.tamtam.ai/c/bright-house-networks) (brighthouse.com)<br>A leading cable systems operator in the US, offering video, high-speed data, home security, business solutions, and targeted advertising services | Telecommunications | 🇺🇸 Syracuse | 2,132 |  |
| 7 | [IPC Systems](https://www.tamtam.ai/c/ipc-systems) (ipc.com)<br>Providing SaaS communications platforms and ultra-low latency electronic trading connectivity with expertise in regulations, market structures, and asset classes worldwide. | Telecommunications | 🇺🇸 New York | 1,434 | 1973 |
| 8 | [JMA Wireless](https://www.tamtam.ai/c/jma-wireless) (jmawireless.com)<br>A global tech company specializing in cutting-edge wireless technology solutions, including 5G, private networks, antennas, and indoor capabilities, manufactured in the US | Telecommunications | 🇺🇸 Syracuse | 756 | 2012 |
| 9 | [Lightpath](https://www.tamtam.ai/c/lightpath) (lightpathfiber.com)<br>Lightpath provides advanced fiber-optic network solutions with top-notch customer service, empowering organizations with reliable, secure, and high-performance connectivity to digital destinations | Telecommunications | 🇺🇸 Bethpage | 744 | 1989 |
| 10 | [MetTel](https://www.tamtam.ai/c/mettel) (mettel.net)<br>Global communications provider offering tailored connectivity solutions for voice, data, mobility, and IoT with a focus on digital transformation and customer experience | Telecommunications | 🇺🇸 New York | 735 | 1996 |
| 11 | [US Mobile](https://www.tamtam.ai/c/us-mobile) (usmobile.com)<br>Revolutionizing wireless connectivity with advanced technology and customer-centric design, offering customizable plans, high-speed roaming, and 24/7 customer support | Telecommunications | 🇺🇸 New York | 668 | 2014 |
| 12 | [KDDI America, Inc.](https://www.tamtam.ai/c/kddi-america-inc) (us.kddi.com)<br>A US subsidiary of a Fortune Global 500 company offering high-quality communications, data centers, and solution services worldwide with a strong reputation | Telecommunications | 🇺🇸 Staten Island | 591 | 1989 |
| 13 | [Insight Communications](https://www.tamtam.ai/c/insight-communications) (myinsight.com)<br>A cable operator offering bundled video, internet, and voice services to residential and business customers, along with a news network | Telecommunications | 🇺🇸 New York | 508 | 1985 |
| 14 | [Vyve Broadband](https://www.tamtam.ai/c/vyve-broadband) (vyvebroadband.com)<br>Providing reliable and affordable cable TV, phone, and internet services with industry-leading speeds over a advanced fiber network Enhancing connectivity for residential and business users | Telecommunications | 🇺🇸 Rye Brook | 507 | 2012 |
| 15 | [Pilot](https://www.tamtam.ai/c/pilot) (pilotfiber.com)<br>Pilot provides reliable and fast office internet services without contracts, with a focus on simplicity, quality, and outstanding customer support | Telecommunications | 🇺🇸 New York | 415 | 2014 |
| 16 | [GoNetspeed](https://www.tamtam.ai/c/gonetspeed) (gonetspeed.com)<br>Providing high-quality internet and voice services through fiber and DSL, focusing on transparency and excellent customer support. | Telecommunications | 🇺🇸 Rochester | 391 |  |
| 17 | [Broadview Networks, now part of Windstream](https://www.tamtam.ai/c/broadview-networks-now-part-of-windstream) (solutions.uniti.com)<br>This company partners with businesses nationwide to provide innovative solutions for networking and communication challenges through digital transformation Follow them for updates | Telecommunications | 🇺🇸 Rye Brook | 388 | 1996 |
| 18 | [BCM One](https://www.tamtam.ai/c/bcm-one) (bcmone.com)<br>Global provider of NextGen communications and managed services, simplifying enterprise voice solutions and network services while prioritizing world-class client relationships | Telecommunications | 🇺🇸 New York | 323 | 1992 |
| 19 | [Ronco](https://www.tamtam.ai/c/ronco) (ronco.net)<br>A family-owned company specializing in integrated communications for various industries, offering custom solutions, ongoing support, and education opportunities since 1965 | Telecommunications | 🇺🇸 Tonawanda | 321 | 1965 |
| 20 | [Medical Answering Services LLC](https://www.tamtam.ai/c/medical-answering-services-llc) (wp2.medanswering.com)<br>A New York corporation providing Medicaid Transportation Management and Prior Authorization Services for New York State Department of Health in 55 counties since 2003 | Telecommunications | 🇺🇸 Syracuse | 277 |  |
| 21 | [Eastern Communications Ltd.](https://www.tamtam.ai/c/eastern-communications-ltd) (easterncommunications.com)<br>Provider of mission critical communications technology, services, and infrastructure for public safety, transportation, and utilities | Telecommunications | 🇺🇸 Queens | 185 | 1976 |
| 22 | [WCS](https://www.tamtam.ai/c/wcs) (beanfield.com)<br>Specializing in IP voice solutions for enterprises, we cater to those with mission-critical voice needs like financial trading firms and emergency response centers | Telecommunications | 🇺🇸 New York | 183 | 2006 |
| 23 | [Webbing](https://www.tamtam.ai/c/webbing) (webbingsolutions.com)<br>Global data MVNO providing enterprise-grade IoT services, offering secure global connectivity through innovative SIM technology and management platforms with 600+ mobile carriers worldwide | Telecommunications | 🇺🇸 Brooklyn | 181 | 2010 |
| 24 | [Maxsip Telecom](https://www.tamtam.ai/c/maxsip-telecom) (maxsipconnects.com)<br>Telecommunications company in New York providing free high-speed tablets and discounted smart devices through the affordable connectivity program, along with retail internet connection | Telecommunications | 🇺🇸 New York | 180 |  |
| 25 | [Arcom Digital](https://www.tamtam.ai/c/arcom-digital) (arcomdigital.com)<br>A global leader in technology products for Cable Television, specializing in network impairment solutions and intelligent monitoring for digital systems | Telecommunications | 🇺🇸 Syracuse | 176 |  |
| 26 | [Advantage Communications Group](https://www.tamtam.ai/c/advantage-communications-group) (advantagecg.com)<br>Optimize network infrastructure through global partnerships, technology expertise, and software, managing procurement, provisioning, inventory, and expenses across communications solutions. | Telecommunications | 🇺🇸 Port Washington | 174 | 2001 |
| 27 | [Globecomm Systems Inc.](https://www.tamtam.ai/c/globecomm-systems-inc) (globecomm.com)<br>The company provides robust connectivity solutions for video, voice, and data in the most remote locations on Earth, serving various industries worldwide | Telecommunications | 🇺🇸 Hauppauge | 169 | 1994 |
| 28 | [Mobile Phones Shop Limited](https://www.tamtam.ai/c/mobile-phones-shop-limited) (smartphones-wholesales.com)<br>Leading distributor of smart mobile phones, laptops, games consoles, desktop computers, and accessories with global reach and focus on innovation and customer satisfaction | Telecommunications | 🇺🇸 New York | 168 | 2007 |
| 29 | [General Mobile](https://www.tamtam.ai/c/general-mobile) (generalmobile.com)<br>Global brand integrating lifestyle with latest technologies, producing high-quality smart mobile products and providing seamless mobile and internet solutions worldwide | Telecommunications | 🇺🇸 New York | 165 | 2005 |
| 30 | [Tillman Fiber](https://www.tamtam.ai/c/tillman-fiber)<br>Tillman FiberCo LLC provides symmetrical gigabit internet to residential and commercial customers, along with point-to-point telecommunications services for enterprise clients | Telecommunications | 🇺🇸 New York | 165 | 2021 |
| 31 | [REDCOM Laboratories, Inc.](https://www.tamtam.ai/c/redcom-laboratories-inc) (redcom.com)<br>Specializing in advanced communications solutions, this company focuses on interoperability, reliability, and ease of use for military, government, and commercial clients worldwide | Telecommunications | 🇺🇸 Victor | 156 | 1978 |
| 32 | [DFT Communications](https://www.tamtam.ai/c/dft-communications) (dftcommunications.com)<br>A family of companies providing telecommunications, internet, security systems, wireless communications, and network solutions in Western New York and parts of Pennsylvania | Telecommunications | 🇺🇸 Fredonia | 147 | 1898 |
| 33 | [Pyramid Network Services, LLC](https://www.tamtam.ai/c/pyramid-network-services-llc) (pyramidns.com)<br>A nationwide contractor specializing in wireless communications networks, offering services from site acquisition to construction management with a focus on cost-effective solutions | Telecommunications | 🇺🇸 East Syracuse | 147 |  |
| 34 | [Tii Technologies Inc.](https://www.tamtam.ai/c/tii-technologies-inc) (tiitech.com)<br>The company delivers innovative fiber and copper solutions for the communications industry, with a focus on customer-specific requirements and quality performance | Telecommunications | 🇺🇸 Edgewood | 137 | 1964 |
| 35 | [OXIO](https://www.tamtam.ai/c/oxio) (oxio.com)<br>OXIO provides a telecom-as-a-service platform, unbundling mobile infrastructure to deliver custom networks to brands quickly with actionable intelligence for improved customer experiences | Telecommunications | 🇺🇸 New York | 105 | 2018 |
| 36 | [Broadband Telecom](https://www.tamtam.ai/c/broadband-telecom) (broadbandtele.net)<br>Provides wholesale and retail voice traffic services, including fraud detection, HD voice, and ITFS/DID services to global telecommunications customers. | Telecommunications | 🇺🇸 Kew Gardens | 101 | 2005 |
| 37 | [INFINIGY](https://www.tamtam.ai/c/infinigy) (infinigy.com)<br>A professional services company providing technical solutions for the telecommunications industry, offering end-to-end solutions including engineering, project management, construction, and more | Telecommunications | 🇺🇸 Albany | 101 | 2001 |
| 38 | [VoltDelta](https://www.tamtam.ai/c/voltdelta)<br>This company provides data-driven contact management solutions to optimize customer journeys, increase revenue, boost retention, and reduce operating costs | Telecommunications | 🇺🇸 Pittsford | 98 | 1975 |
| 39 | [Mediacom Business](https://www.tamtam.ai/c/mediacom-business) (mediacombusiness.com)<br>Provider of innovative broadband products for public and private sector clients, offering scalable voice, video, and high-speed internet services up to 10-Gig speeds | Telecommunications | 🇺🇸 Mediacom Park | 69 |  |
| 40 | [MKJ COMMUNICATIONS](https://www.tamtam.ai/c/mkj-communications) (mkjcomm.com)<br>The company engineers, integrates, and maintains custom communication systems to keep customers safe, connected, and on schedule with cutting-edge technology | Telecommunications | 🇺🇸 Brooklyn | 57 | 2006 |
| 41 | [Younity](https://www.tamtam.ai/c/younity) (younity.io)<br>Innovative wireless internet platform for real estate offering property-wide access, maintenance automation, data optimization, and dedicated customer support for peace of mind | Telecommunications | 🇺🇸 New York | 39 | 2018 |
| 42 | [CosmoCom (An Enghouse Interactive Company)](https://www.tamtam.ai/c/cosmocom-an-enghouse-interactive-company) (cosmocom.com)<br>An innovative cloud contact center solution provider empowering businesses to unify customer interactions across various channels and locations worldwide | Telecommunications | 🇺🇸 Melville | 33 | 1996 |
| 43 | [TM Technology Partners](https://www.tamtam.ai/c/tm-technology-partners) (tmtechpartners.com)<br>Industry-leading consulting, design, and project management firm offering comprehensive services to public and private sectors for commercial, residential, and industrial projects of all sizes | Telecommunications | 🇺🇸 New York | 22 | 1993 |
| 44 | [Costrotta](https://www.tamtam.ai/c/costrotta) (aflglobal.com)<br>Full-service construction and project management company specializing in wireless industry, serving northeastern US with experienced team and strong customer partnerships | Telecommunications | 🇺🇸 Freeport | 22 | 1996 |
| 45 | [Hltourism](https://www.tamtam.ai/c/hltourism) (hltourism.com)<br>Specializing in technology management, software development, and implementing top-notch security for websites to help businesses efficiently manage their operations | Telecommunications | 🇺🇸 New York | 21 |  |
| 46 | [Robert Derector Telecommunications](https://www.tamtam.ai/c/robert-derector-telecommunications) (derector.com)<br>Provider of IT-related design, engineering, and consulting services including IT infrastructure, electronic security, and audiovisual system design for various industries | Telecommunications | 🇺🇸 New York | 18 | 1995 |
| 47 | [KeKu](https://www.tamtam.ai/c/keku) (keku.com)<br>KeKu offers a cost-effective way to call any phone number worldwide using SmartDials technology and internet calling, with additional features like call recording and SMS | Telecommunications | 🇺🇸 New York | 12 | 2006 |
| 48 | [LG Tech](https://www.tamtam.ai/c/lg-tech) (lgtech.us)<br>A certified provider of high-end solutions for wireless service providers, focused on quality, safety, and meeting strict deadlines for project management and construction | Telecommunications | 🇺🇸 New York | 11 |  |
| 49 | [Syntegra](https://www.tamtam.ai/c/syntegra) (syntegra.net)<br>A global company provides secure and scalable solutions connecting people and devices for data, voice, video, and more innovative communication experiences | Telecommunications | 🇺🇸 New York | 7 | 2022 |
| 50 | [Cypher Communications](https://www.tamtam.ai/c/cypher-communications) (cyphercommunications.net)<br>A full-service IT consulting firm specializing in Directv, internet, and phone services for lodging, commercial, and multi-dwelling unit markets Specializes in DIRECTV installation and deployment | Telecommunications | 🇺🇸 Pittsford | 5 |  |

## How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.

## More company lists in New York State

- [The largest companies in New York State](https://www.tamtam.ai/l/largest-companies-new-york-state) (12,432)
- [Multinational companies in New York State](https://www.tamtam.ai/l/multinational-companies-new-york-state) (2,216)
- [Financial services firms in New York State](https://www.tamtam.ai/l/financial-services-firms-new-york-state) (1,272)
- [Financial Services companies in New York State](https://www.tamtam.ai/l/financial-services-companies-new-york-state) (1,076)
- [SaaS companies in New York State](https://www.tamtam.ai/l/saas-companies-new-york-state) (1,060)
- [Professional services firms in New York State](https://www.tamtam.ai/l/professional-services-firms-new-york-state) (955)
- [Real Estate companies in New York State](https://www.tamtam.ai/l/real-estate-companies-new-york-state) (789)
- [Venture capital and private equity firms in New York State](https://www.tamtam.ai/l/vc-and-private-equity-firms-new-york-state) (757)
- [Software Development companies in New York State](https://www.tamtam.ai/l/software-development-companies-new-york-state) (696)
- [Education providers in New York State](https://www.tamtam.ai/l/education-companies-new-york-state) (656)
- [AI companies in New York State](https://www.tamtam.ai/l/ai-companies-new-york-state) (585)
- [IT Services and IT Consulting companies in New York State](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-new-york-state) (570)
- [Retail chains in New York State](https://www.tamtam.ai/l/retail-chains-new-york-state) (559)
- [Healthcare providers in New York State](https://www.tamtam.ai/l/healthcare-providers-new-york-state) (494)
- [Companies with a mobile app in New York State](https://www.tamtam.ai/l/companies-with-mobile-app-new-york-state) (491)
- [Subscription businesses in New York State](https://www.tamtam.ai/l/subscription-businesses-new-york-state) (485)
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- [Advertising Services companies in New York State](https://www.tamtam.ai/l/advertising-services-companies-new-york-state) (473)
- [IT services companies in New York State](https://www.tamtam.ai/l/it-services-companies-new-york-state) (468)
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- [Companies with in-house R&D in New York State](https://www.tamtam.ai/l/r-and-d-companies-new-york-state) (419)
- [Hospitals and Health Care companies in New York State](https://www.tamtam.ai/l/hospitals-and-health-care-companies-new-york-state) (408)
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## The same list elsewhere in United States

- [Telecommunications companies in the United States](https://www.tamtam.ai/l/telecommunications-companies-united-states) (750)
- [Telecommunications companies in California](https://www.tamtam.ai/l/telecommunications-companies-california) (105)
- [Telecommunications companies in Texas](https://www.tamtam.ai/l/telecommunications-companies-texas) (81)
- [Telecommunications companies in Florida](https://www.tamtam.ai/l/telecommunications-companies-florida) (55)
- [Telecommunications companies in Virginia](https://www.tamtam.ai/l/telecommunications-companies-virginia) (40)
- [Telecommunications companies in Georgia](https://www.tamtam.ai/l/telecommunications-companies-georgia) (26)
- [Telecommunications companies in Massachusetts](https://www.tamtam.ai/l/telecommunications-companies-massachusetts) (26)
- [Telecommunications companies in New York](https://www.tamtam.ai/l/telecommunications-companies-new-york) (26)

## The same list elsewhere

- [Telecommunications companies in the world](https://www.tamtam.ai/l/telecommunications-companies-in-the-world) (3,307)
- [Telecommunications companies in North America](https://www.tamtam.ai/l/telecommunications-companies-in-north-america) (899)

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Source: https://www.tamtam.ai/l/telecommunications-companies-new-york-state