# Top 50 multinational companies in New Hampshire

Tamtam tracks 60 multinational companies headquartered in New Hampshire. This list ranks the 50 largest by number of employees on LinkedIn, led by Planet Fitness, Transavia and Connection. Their median headcount is 824. Half of them were founded in 1987 or later. The most common headquarters are Portsmouth (12), Manchester (7) and Nashua (6).

This selection of companies in New Hampshire highlights a mix of well-established mid-sized to large firms, with a strong presence in technology, manufacturing, and services. Planet Fitness, for example, is a fast-growing fitness franchisor, while Connection provides tailored IT services. Timberland is a global leader in footwear and apparel, and Skillsoft specializes in AI-native skills management for businesses. Bottomline simplifies complex payment workflows, and Allegro MicroSystems is a leader in power and sensing solutions.

A notable pattern is the concentration of headquarters in New Hampshire towns like Hampton, Merrimack, Stratham, Nashua, Portsmouth, Manchester, and Londonderry, indicating a diverse geographical spread within the state rather than a single urban hub. The companies also span a broad range of founding dates, from Albany International Corp. established in 1895 to I-SEC Security founded in 2005, showcasing a blend of legacy and newer enterprises.

🇺🇸 New Hampshire · 50 companies · Updated Nov 14, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Planet Fitness](https://www.tamtam.ai/c/planet-fitness) (planetfitness.com)<br>A fast-growing fitness franchisor with over 2,400 locations, dedicated to providing affordable, high-quality fitness experiences in a Judgement Free Zone® | Wellness and Fitness Services | 🇺🇸 Hampton | 18,335 | 1992 |
| 2 | [Transavia](https://www.tamtam.ai/c/transavia) (transavia.com)<br>An airline with 50 years of experience flying passengers to over 160 destinations, offering easy booking, various fare options, and dedicated services for business travelers | Airlines and Aviation | 🇺🇸 Schiphol | 5,275 | 1965 |
| 3 | [Connection](https://www.tamtam.ai/c/connection) (connection.com)<br>Deliver tailored IT services and advanced technology solutions to businesses, enterprises, and governments across multiple industries worldwide. | IT Services and IT Consulting | 🇺🇸 Merrimack | 3,993 | 1982 |
| 4 | [Timberland](https://www.tamtam.ai/c/timberland) (timberland.com)<br>A global leader in footwear and apparel, encouraging employees to embrace adventure and sustainability, offering perks for outdoor activities and career growth opportunities | Retail | 🇺🇸 Stratham | 3,927 |  |
| 5 | [Skillsoft](https://www.tamtam.ai/c/skillsoft) (skillsoft.com)<br>Global leader AI-native skills management for human + AI era. Unifying learning, real-time skills intelligence, workforce insights, building Skillforce to drive business outcomes. | E-Learning Providers | 🇺🇸 Nashua | 3,160 | 1998 |
| 6 | [Bottomline](https://www.tamtam.ai/c/bottomline-portsmouth) (bottomline.com)<br>Simplifying complex payment workflows, reducing fraud risk, and driving operational efficiency with secure, scalable, innovative solutions for businesses and financial institutions. | Software Development | 🇺🇸 Portsmouth | 2,951 |  |
| 7 | [Allegro MicroSystems](https://www.tamtam.ai/c/allegro-microsystems) (allegromicro.com)<br>A global leader in power and sensing solutions for motion control and energy-efficient systems, driving breakthrough advancements in various industries | Semiconductor Manufacturing | 🇺🇸 Manchester | 2,882 | 1990 |
| 8 | [EFI](https://www.tamtam.ai/c/efi) (efi.com)<br>A leading company in digital imaging, EFI offers innovative products for signage, packaging, textiles, ceramic tiles, and personalized documents to enhance productivity | Printing Services | 🇺🇸 Londonderry | 2,691 | 1989 |
| 9 | [Albany International Corp.](https://www.tamtam.ai/c/albany-international-corp) (albint.com)<br>Global producer of custom fabrics for paper and nonwovens, supplier of advanced composite aerospace parts including fan blades and cases. | Textile Manufacturing | 🇺🇸 Rochester | 2,584 | 1895 |
| 10 | [Altra Industrial Motion](https://www.tamtam.ai/c/altra-industrial-motion) (altramotion.com)<br>Designing, producing motion control and power transmission solutions for equipment speed, torque, positioning, and other functions, solving complex customer challenges worldwide. | Appliances, Electrical, and Electronics Manufacturing | 🇺🇸 Braintree | 2,238 |  |
| 11 | [Sitecore](https://www.tamtam.ai/c/sitecore) (sitecore.com)<br>The company provides digital experience software SaaS solution for brands to create memorable customer interactions | Software Development | 🇺🇸 Manchester | 1,745 | 2001 |
| 12 | [HMSHost International](https://www.tamtam.ai/c/hmshost-international) (hmshost.work)<br>A global restaurateur specializing in operating hospitality outlets in travel venues worldwide, offering international brands and regional concepts to over 900 million customers annually | Hospitality | 🇺🇸 Schiphol | 1,466 |  |
| 13 | [I-SEC Security](https://www.tamtam.ai/c/i-sec-security) (i-sec.com)<br>A global provider of advanced aviation security services including consulting, handling, training, and developing cost-effective security solutions for clients | Security and Investigations | 🇺🇸 Schiphol Oost | 1,376 | 2005 |
| 14 | [Hypertherm Associates](https://www.tamtam.ai/c/hypertherm-associates) (hyperthermassociates.com)<br>A US manufacturer of industrial cutting products and software, delivering solutions that shape the future for businesses worldwide | Manufacturing | 🇺🇸 Hanover | 1,316 | 1968 |
| 15 | [IAPP](https://www.tamtam.ai/c/iapp) (iapp.org)<br>The company is the largest privacy association globally, providing resources for professionals and businesses to navigate evolving privacy and AI governance issues | Non-profit Organizations | 🇺🇸 Portsmouth | 1,315 | 2000 |
| 16 | [CAMP Systems International, Inc.](https://www.tamtam.ai/c/camp-systems-international-inc) (campsystems.com)<br>Industry-leading aircraft maintenance and regulatory compliance management solution, offering a suite of services for fixed and rotor wing aircraft globally | IT Services and IT Consulting | 🇺🇸 Merrimack | 1,153 | 1968 |
| 17 | [Velcro Companies](https://www.tamtam.ai/c/velcro-companies) (velcro.com)<br>Global organization providing innovative fastening solutions with over 60 years of experience, owning 400+ patents and global manufacturing locations | Textile Manufacturing | 🇺🇸 Manchester | 1,117 | 1951 |
| 18 | [Standex International](https://www.tamtam.ai/c/standex-international) (standex.com)<br>A global industrials company with market-leading brands serving electronics, engraving, and specialty technology industries, advancing vital sectors like electric vehicles and solar technology | Manufacturing | 🇺🇸 Salem | 1,112 | 1955 |
| 19 | [Carpet One Floor & Home](https://www.tamtam.ai/c/carpet-one-floor-and-home) (carpetone.com)<br>North America's top floor covering retailer with over 1,000 locations offering a wide selection of flooring options and expert installation services | Retail | 🇺🇸 Manchester | 1,081 | 1984 |
| 20 | [Laborie](https://www.tamtam.ai/c/laborie) (laborie.com)<br>A world-class medical company specializing in diagnostic equipment and supplies for Urology, Gastroenterology, Gynecology, Obstetrics, and Neonatology, making a positive impact globally | Medical Equipment Manufacturing | 🇺🇸 Portsmouth | 1,068 | 1967 |
| 21 | [Resonetics](https://www.tamtam.ai/c/resonetics) (resonetics.com)<br>Develops and manufactures precision components for medical devices, partnering with R&D teams from prototype to production-scale manufacturing with global facilities. | Manufacturing | 🇺🇸 Nashua | 1,067 | 1987 |
| 22 | [Nordson MEDICAL](https://www.tamtam.ai/c/nordson-medical) (nordsonmedical.com)<br>Global expert in designing, developing, and manufacturing complex medical devices and component technologies, serving interventional, surgical, and specialized markets with innovative solutions | Medical Equipment Manufacturing | 🇺🇸 Salem | 1,014 | 1968 |
| 23 | [Levi9 Technology Services](https://www.tamtam.ai/c/levi9-technology-services) (levi9.com)<br>A technology service partner in the Netherlands, offering digital product development, software scaling, and complex platform building with a customer-centric approach and industry expertise | IT Services and IT Consulting | 🇺🇸 Amsterdam | 967 | 2005 |
| 24 | [Service Credit Union](https://www.tamtam.ai/c/service-credit-union) (servicecu.org)<br>Member-owned financial cooperative offering banking services across multiple states and Germany, focusing on member well-being and community support. | Banking | 🇺🇸 Portsmouth | 925 | 1957 |
| 25 | [Parallel Wireless](https://www.tamtam.ai/c/parallel-wireless) (parallelwireless.com)<br>Leading disruptive software company revolutionizing wireless network deployment with open, secure, and intelligent RAN architecture for global MNOs | Telecommunications | 🇺🇸 Nashua | 824 | 2012 |
| 26 | [KAS BANK](https://www.tamtam.ai/c/kas-bank) (caceis.com)<br>Specialized asset servicing banking group providing a comprehensive range of services across Europe, North America, and Asia to financial institutions and corporate clients | Banking | 🇺🇸 Amsterdam | 816 | 1806 |
| 27 | [Epredia](https://www.tamtam.ai/c/epredia) (epredia.com)<br>A global precision cancer diagnostics company, providing groundbreaking technologies to improve patient outcomes in the battle against cancer | Biotechnology Research | 🇺🇸 Portsmouth | 737 | 2019 |
| 28 | [Global Technical Talent, an Inc. 5000 Company](https://www.tamtam.ai/c/global-technical-talent-an-inc-5000-company) (gttit.com)<br>A subsidiary of Chenega Corporation providing Total Talent Solutions, Global staffing, RPO, and Digital talent services to Fortune 500 clients | Staffing and Recruiting | 🇺🇸 Portsmouth | 614 | 1999 |
| 29 | [TURBOCAM International](https://www.tamtam.ai/c/turbocam-international) (turbocam.com)<br>A leader in turbomachinery manufacturing, producing prototype and production parts with advanced machining capabilities, specializing in integrally-bladed parts for aerospace engines | Aviation and Aerospace Component Manufacturing | 🇺🇸 Barrington | 558 | 1985 |
| 30 | [Hitchiner Manufacturing](https://www.tamtam.ai/c/hitchiner-manufacturing) (hitchiner.com)<br>A leading supplier of complex investment castings and finished subassemblies for automotive, aerospace, and other industries worldwide, utilizing cutting-edge technology and robotics | Aviation and Aerospace Component Manufacturing | 🇺🇸 Milford | 541 | 1946 |
| 31 | [GlobalSign](https://www.tamtam.ai/c/globalsign) (globalsign.com)<br>The company provides trusted identity and security solutions for businesses, enterprises, cloud providers, and IoT innovators to secure online communications | Computer and Network Security | 🇺🇸 Portsmouth | 511 | 1996 |
| 32 | [Sprague Operating Resources LLC](https://www.tamtam.ai/c/sprague-operating-resources-llc) (spragueenergy.com)<br>A leading independent supplier of energy and materials handling services in the Northeast, offering products like home heating oil, diesel, gasoline, and natural gas | Oil and Gas | 🇺🇸 Portsmouth | 508 | 1870 |
| 33 | [Loftware](https://www.tamtam.ai/c/loftware) (loftware.com)<br>Provides software for product identification, ensuring businesses manage labeling across their supply chain, saving money, reducing risk, and avoiding production delays. | Software Development | 🇺🇸 Portsmouth | 500 | 1986 |
| 34 | [Symetri USA](https://www.tamtam.ai/c/symetri-usa) (symetri.us)<br>A technology consulting firm providing technical services for planning, design, construction, operations, and maintenance of land and buildings for large-scale projects | Software Development | 🇺🇸 Nashua | 492 | 1994 |
| 35 | [Integrated Deicing Services, LLC](https://www.tamtam.ai/c/integrated-deicing-services-llc) (inlandgroup.aero)<br>Provider of aircraft deicing and anti-icing services using the largest fleet of forced-air trucks, operating at over 35 airport locations globally | Airlines and Aviation | 🇺🇸 Manchester | 487 | 2002 |
| 36 | [RiverStone](https://www.tamtam.ai/c/riverstone) (trg.com)<br>Specializing in risk management solutions for insurers and reinsurers, providing run-off claims resolution, reinsurance recovery, and dispute resolution on a global scale | Insurance | 🇺🇸 Manchester | 462 | 1999 |
| 37 | [Goss International](https://www.tamtam.ai/c/goss-international) (gossinternational.com)<br>Supplier of automated web offset presses for various printing applications, headquartered in Durham, NH with manufacturing centers in North America, Asia, and Europe | Machinery Manufacturing | 🇺🇸 Durham | 432 | 1850 |
| 38 | [PlaneSense, Inc.](https://www.tamtam.ai/c/planesense-inc) (planesense.com)<br>Leaders in fractional aircraft ownership providing worry-free private jet ownership, cost-effective travel solutions, and maximum freedom of movement for owners | Aviation and Aerospace Component Manufacturing | 🇺🇸 Portsmouth | 389 | 1995 |
| 39 | [iCAD](https://www.tamtam.ai/c/icad) (icadmed.com)<br>Using AI, we empower healthcare providers to detect cancer more accurately and quickly, optimizing patient outcomes with proven technologies | Hospitals and Health Care | 🇺🇸 Nashua | 363 | 1984 |
| 40 | [KBACE, A Cognizant Company](https://www.tamtam.ai/c/kbace-a-cognizant-company) (cognizant.com)<br>Specializing in Oracle Cloud Software, the company helps businesses modernize and simplify their digital systems by offering full-service solutions and deep industry expertise | IT Services and IT Consulting | 🇺🇸 Nashua | 359 | 1998 |
| 41 | [Health Dialog](https://www.tamtam.ai/c/health-dialog) (carenethealthcare.com)<br>Providing integrated population health services including member engagement, health coaching, medication support, and decision-making tools for healthcare organizations. | Hospitals and Health Care | 🇺🇸 Bedford | 325 | 1997 |
| 42 | [Anvil International (INACTIVE)](https://www.tamtam.ai/c/anvil-international-inactive) (asc-es.com)<br>A unified company focusing on delivering service excellence through precision-engineered products, support, and knowledge, ultimately striving for customer success | Wholesale Building Materials | 🇺🇸 Exeter | 322 | 1850 |
| 43 | [Grassroot Soccer](https://www.tamtam.ai/c/grassroot-soccer) (grassrootsoccer.org)<br>An adolescent health organization that uses soccer to educate and mentor young people in over 60 countries, reaching 18 million adolescents since 2002 | Non-profit Organizations | 🇺🇸 Hanover | 312 | 2002 |
| 44 | [Avantium](https://www.tamtam.ai/c/avantium) (avantium.com)<br>Commercialization of technologies converting biomass and CO2 into sustainable materials, including plant-based sugars for FDCA production and advanced catalysis products and services. | Chemical Manufacturing | 🇺🇸 Amsterdam | 306 | 2000 |
| 45 | [Standex Engraving](https://www.tamtam.ai/c/standex-engraving) (mold-tech.com)<br>Global supplier specializing in mold texturing, surface finishes, and tooling for manufacturing products; part of a diversified global manufacturing corporation | Plastics Manufacturing | 🇺🇸 Salem | 296 | 1955 |
| 46 | [York IE](https://www.tamtam.ai/c/york-ie) (york.ie)<br>Advisory and venture capital firm specializing in helping technology companies grow by providing strategic guidance and investing in early-stage B2B SaaS startups | Venture Capital and Private Equity Principals | 🇺🇸 Manchester | 290 | 2019 |
| 47 | [Galvion](https://www.tamtam.ai/c/galvion) (galvion.com)<br>The company specializes in designing and delivering purpose-built solutions for military and tactical missions, enhancing agility and survivability for end-users | Defense and Space Manufacturing | 🇺🇸 Portsmouth | 257 | 2002 |
| 48 | [ElectroCraft](https://www.tamtam.ai/c/electrocraft) (electrocraft.com)<br>Specializing in custom manufacturing of AC, DC, and stepper motors, gearboxes, drives, and linear actuators for industrial, commercial, and consumer markets | Automation Machinery Manufacturing | 🇺🇸 Stratham | 240 |  |
| 49 | [Safran Defense & Space, Inc. Optronics](https://www.tamtam.ai/c/safran-defense-and-space-inc-optronics) (safran-dsi.com)<br>Global leader designing and producing high-performance electro-optics and navigation systems for defense and civil applications, including laser rangefinders, targeting solutions, and custom OEM solutions | Defense and Space Manufacturing | 🇺🇸 Bedford | 173 | 1985 |
| 50 | [Synergetics - A Worldwide Resource For Business Problem Solving](https://www.tamtam.ai/c/synergetics-a-worldwide-resource-for-business-problem-solving) (synergeticsww.com)<br>A respected global management consulting firm partnering with companies to drive growth, enhance performance, and create sustainable improvements in efficiencies and profitability | Business Consulting and Services | 🇺🇸 Portsmouth | 119 | 1975 |

## 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 14, 2026.

## More company lists in New Hampshire

- [The largest companies in New Hampshire](https://www.tamtam.ai/l/largest-companies-new-hampshire) (448)
- [Manufacturers in New Hampshire](https://www.tamtam.ai/l/manufacturers-new-hampshire) (62)
- [Companies with in-house R&D in New Hampshire](https://www.tamtam.ai/l/r-and-d-companies-new-hampshire) (50)
- [Critical infrastructure operators in New Hampshire](https://www.tamtam.ai/l/critical-infrastructure-operators-new-hampshire) (39)
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## The same list elsewhere in United States

- [Multinational companies in the United States](https://www.tamtam.ai/l/multinational-companies-united-states) (16,191)
- [Multinational companies in California](https://www.tamtam.ai/l/multinational-companies-california) (2,587)
- [Multinational companies in New York State](https://www.tamtam.ai/l/multinational-companies-new-york-state) (2,211)
- [Multinational companies in Texas](https://www.tamtam.ai/l/multinational-companies-texas) (1,418)
- [Multinational companies in Florida](https://www.tamtam.ai/l/multinational-companies-florida) (897)
- [Multinational companies in Illinois](https://www.tamtam.ai/l/multinational-companies-illinois) (830)
- [Multinational companies in Massachusetts](https://www.tamtam.ai/l/multinational-companies-massachusetts) (637)
- [Multinational companies in New Jersey](https://www.tamtam.ai/l/multinational-companies-new-jersey) (623)
- [Multinational companies in Georgia](https://www.tamtam.ai/l/multinational-companies-georgia) (521)
- [Multinational companies in Pennsylvania](https://www.tamtam.ai/l/multinational-companies-pennsylvania) (472)
- [Multinational companies in Michigan](https://www.tamtam.ai/l/multinational-companies-michigan) (467)
- [Multinational companies in Alabama](https://www.tamtam.ai/l/multinational-companies-alabama) (428)
- [Multinational companies in Virginia](https://www.tamtam.ai/l/multinational-companies-virginia) (396)
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## The same list elsewhere

- [Multinational companies in the world](https://www.tamtam.ai/l/multinational-companies-in-the-world) (74,906)
- [Multinational companies in North America](https://www.tamtam.ai/l/multinational-companies-in-north-america) (18,654)

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Source: https://www.tamtam.ai/l/multinational-companies-new-hampshire