Best Business Services Companies in Portsmouth, United States
The 73 best Business Services companies in Portsmouth, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: RMC Research Corporation.
Ranked: Best Business Services companies in Portsmouth
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | RMC Research Corporation Provider of research, program evaluation, and custom products for professional service providers | $45M | 145 mo ago | Funding Raised | — | 1982 | — | — | — |
| 2 | txnlab Provider of domain buying, selling, and registration services | $1M | 53 mo ago | Seed | Gabriel Kuettel Co-Founder | 2021 | — | — | — |
| 3 | Fleye Provider of event management services | $800K | 175 mo ago | Deadpooled | Cameron Miner Co-Founder & President | 2011 | — | 19 patents Wearable RF antenna integration and multi‑sensor video analytics for sports event monitoring | — |
| 4 | MadPow Provider of marketing and application development services | $225K | 142 mo ago | Acquired | Amy Heymans Founder & CEO | 2000 | — | — | — |
| 5 | Madison Resources Provider of HR management, payroll and outsourcing services | — | 66 mo ago | Funding Raised | — | 1992 | WordPressMySQLPHP+18 | — | — |
| 6 | Whaleback Managed Services Provider of cloud-based managed unified communication services | — | 190 mo ago | Acquired | — | 2005 | — | — | — |
| 7 | a&a search A&A Search is a staffing and recruiting company specializing in IT staffing services. | — | — | — | — | 2002 | — | — | — |
| 8 | Adaptive Communications VAR of enterprise security, networking & storage solution | — | — | Acquired | Stephen Thorpe Co-Founder & President | 1997 | — | — | — |
Top 6 Business Services companies in Portsmouth
#1
Seed · Portsmouth, New Hampshire · founded 2021$1.2Mraised▾
Provider of domain buying, selling, and registration services
- Jan 2022Seed$1.2M
#2
Funding Raised · Portsmouth, New Hampshire · founded 1982 · 133 employees$45.3Mraised▾
Provider of research, program evaluation, and custom products for professional service providers. It conducts research and program evaluations to help professional service providers understand their impact and improve outcomes. The company offers expertise, support, and custom products to assist clients in education, health, and the arts to deliver services more effectively. It applies proven methods to inform and promote evidence-based actions.
- May 2014Grant (prize money)$800K
- Sep 2012Grant (prize money)$149.6K
- Sep 2012Grant (prize money)$2.8M
- Mar 2011Grant (prize money)$1.3M
#3
Deadpooled · Portsmouth, New Hampshire · founded 2011$800Kraised▾
Operator of a video platform based in Portsmouth, New Hampshire. The company helps to capture videos of customer experiences, and then view, edit and share them through social networks while allowing them to connect with an active demographic and their friends and re-engage with them.
- Nov 2011Seed$800K
#4
Acquired · Portsmouth, New Hampshire · founded 2000 · 87 employees$225Kraised▾
Provider of marketing and application development services
- Aug 2014Grant (prize money)$225K
#5
Funding Raised · Portsmouth, New Hampshire · founded 1992 · 1221 employees—raised▾
Provider of HR management, payroll and outsourcing services
#6
Acquired · Portsmouth, New Hampshire · founded 2005 · 31 employees—raised▾
Provider of an internet protocol telephony service and develops phone services for small and medium sized businesses. The company provides cloud based managed services for business communications.
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Business Services coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
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.