Top 57 SaaS Companies in New Hampshire, United States, May 2026

Portsmouth, New Hampshire, United States

At Bottomline, we help businesses pay and get paid. As a trusted partner to banks, corporates, and financial institutions worldwide, we deliver secure, scalable, and innovative solutions that simplify complex payment workflows, reduce fraud risk, and drive operational efficiency. With decades of expertise in financial messaging, cash management, and digital banking, our SaaS platforms and services are built to meet the evolving needs of modern finance teams. Whether it's automating B2B payments, streamlining compliance, or enabling real-time visibility into cash flow, Bottomline is committed to making business payments seamless and secure. We serve over 1,200 financial institutions and 10,000 businesses globally, helping them navigate the future of payments with confidence.

Manchester, New Hampshire, United States

Sequel Med Tech is a healthcare technology company focused on diabetes management, developing transformative drug-delivery advancements to improve the health and lives of people with diabetes.

Portsmouth, New Hampshire, United States

Blue Mantis is a security-first, IT solutions and services provider with a 30+ year history of successfully helping clients achieve business modernization through digital technology services and strategic guidance. The company provides systems integration, cloud management, cybersecurity, and networking services.

Manchester, New Hampshire, United States

Newforma develops, sells, and supports project information management (PIM) software for architecture, engineering, and construction firms worldwide. The company centralizes files, emails, and conversations into one connected information management platform for full AEC project visibility.

Hampton, New Hampshire, United States

QAT Global is an information technology company offering cloud computing, big data, analytics, and integration solutions.

Peterborough, New Hampshire, United States

AI-powered digital advertising platform for automotive dealerships

Nashua, New Hampshire, United States

Retailer of online auto parts. The company's online platform offers aftermarket auto parts, car body parts, replacement and new automobile, and truck parts that are of high-quality, enabling customers to have quality auto parts.

Nashua, New Hampshire, United States

Developer of a security software designed to simplify enterprise access control. The company's software closes security gaps and ensures only trusted, known assets connect to corporate networks and provides real-time defense against cyber attacks including zero-days, phishing and ransomware, enabling IT professionals to regain control of their networks and enhance organizations cyber-risk mitigation strategies.

Portsmouth, New Hampshire, United States

Senet offers a low cost, long distance sensor network, and high-value SaaS applications on a subscription .

Amsterdam, New Hampshire, United States

Developer of a cloud-based fitness software platform designed to offer innovative fitness, member engagement, coaching and club management services. The company's platform consists of a complete ecosystem with an integrated mobile application and services for exercise and nutrition guidance, progress tracking, online coaching, member and staff management, scheduling, online sign-up, payments and access control, etc, enabling clients to connect their entire business to the system and users to tackle their nutrition intake.