Best Business Services Companies in Norwalk, United States
The 42 best Business Services companies in Norwalk, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: 203 Trading LLC.
Ranked: Best Business Services companies in Norwalk
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Advanced Electronic Systems Provider of installation and monitoring services for alarm systems, specializing in residential security | $5M | 32 mo ago | Funding Raised | Howard Friedman Owner | 1973 | WordPressMySQLPHP+16 | 281 patents Smart grid power distribution, fault detection, and wireless high‑frequency power management systems. | — |
| 2 | 203 Trading LLC Provider of IT support and hardware distribution services | $5M | 77 mo ago | Funding Raised | Pat Libertino Owner | 2016 | — | — | — |
| 3 | Xerox Provider of printing and digital document solutions, services, and related supplies | $1M | 16 mo ago | Public | Steve Bandrowczak CEO | 1906 | Cart FunctionalityMagentoKlevu+29 | 30,599 patents Secure document handling, printing technologies, and digital imaging workflow solutions. | 2 launchs |
| 4 | SDG Provider of cybersecurity advisory, transformation, and managed services for enterprises | — | 8 mo ago | Acquired | Ajay Gupta Founder & CEO | 1993 | Cart FunctionalityWordPressMySQL+32 | 291 patents Nanoparticle drug delivery formulations and pulsed‑power downhole drilling equipment | — |
| 5 | Vertrue Internet display advertiser | — | 228 mo ago | Acquired | Gary Johnson Co-founder & CEO | 1989 | — | — | — |
| 6 | Acosta Marketing Group Acosta Mosaic Group (AMG) houses a suite of specialized marketing agencies that deliver world-class insights… | — | — | — | — | — | — | — | — |
| 7 | american interactive marketing American Interactive Marketing is a marketing agency that offers a full suite of digital marketing services… | — | — | — | — | 2007 | — | — | — |
| 8 | apex technology services Apex Technology Services is a software company that provides cloud and cybersecurity services. | — | — | — | — | — | Master SliderYouTubeVarnish+18 | 63 patents Deterministic real-time shared-memory communication and memory allocation for embedded systems | — |
Top 5 Business Services companies in Norwalk
#1
Public · Norwalk, Connecticut · founded 1906 · 3466 employees$1Mraised▾
Provider of printing and digital document solutions, services, and related supplies. The company offers printers, digital printing presses, software, and digital services. These include capture and workflow automation, cloud print services, and invoice management. The company also provides IT, managed print, and security solutions. It serves industries such as education, financial services, government, healthcare, legal, retail, and small and medium businesses.
- Apr 2025Conventional Debt$991.4K
- Dec 2018Grant (prize money)$19.4K
- Mar 2018Grant (prize money)$26.5K
#2
Funding Raised · Norwalk, Connecticut · founded 1973$5Mraised▾
Advanced Electronic Systems (AES) specializes in the installation and monitoring of alarm systems for residential and commercial properties. They offer advanced technology that allows users to create and monitor critical communications systems anywhere, eliminating the need for third-party providers. AES provides security solutions for both homeowners and businesses, ensuring peace of mind and flexibility in accessing their systems.
- Dec 2023Conventional Debt$5M
#3
Funding Raised · Norwalk, Connecticut · founded 2016$5Mraised▾
Provider of IT support and hardware distribution services
- Mar 2020Conventional Debt$5M
#4
Acquired · Norwalk, Connecticut · founded 1993 · 31 employees—raised▾
Provider of cybersecurity advisory, transformation, and managed services for enterprises. The company delivers solutions in identity, risk, and threat management. It offers strategic services that empower leaders with identity governance, access management, and privileged access management. The company provides risk management, GRC, and cyber resilience services. It also offers security assessments, vulnerability management, and cloud security services.
- Dec 2025Conventional Debt—
- Dec 2024Unattributed—
- Sep 2018Unattributed—
#5
Acquired · Norwalk, Connecticut · founded 1989 · 116 employees—raised▾
Vertrue specialises in providing internet direct marketing services. The company offers marketing online affinity and loyalty membership programs. It offers D2C savings, club membership, and loyalty programs on various categories, such as healthcare & cosmetic surgery, security & credit protection services, shopping, personal property, discounts, and foreclosure home sales. The company also provides fee-based consumer pricing services for real estate foreclosures, car auctions, and consumer durables; online dating, relationship opportunity, and social interaction services for adult singles; and lead generation services. Vertrue was founded in 1989, went public in 1996, and was, again, taken private by One Equity Partners in 2007.
- Aug 2007Conventional Debt—
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.