Ten4: Detailed Company Information & Corporate Profile
Summary
Ten4 delivers comprehensive telecommunications solutions from its Baltimore, MD headquarters. Founded in 1997, the company employs between 100 and 200 professionals and generates annual revenue in the $10‑$50 million range.
Ten4 specializes in SIP Trunks, Unified Communications as a Service (UCaaS), MPLS, POTS lines, Voice Hosted services, Cellular Broadband, hosted PBX, VOIP, fiber, cable, Ethernet, networks, connectivity, NOC operations, TEM, conferencing and related cloud offerings. The organization functions under the leadership of Founder & CEO Brooke Frank and President Scott Klemm, with key executives including Brad Muser (EVP Finance/Billing), Tom McDonnell (VP Operations), Deanna Kelly (VP HR/Counsel) and Victoria Lombardi (Telecommunications Coordinator). Support roles span from Help Desk Specialist Laura Strazzullo to Network Technician Samuel Chelemer and Senior Engineer Christopher Hansen. Ten4’s single‑point‑of‑contact approach integrates billing aggregation, cellular services and hosted phone solutions to streamline customer experience.
| Ten4 Website | ten4.us |
| Industries | |
| Ten4 Headquarters Address | 1700 Union Avenue, Baltimore, MD, 21201 US |
| Company Size | 100-200 employees |
| Specialities & Services | SIP Trunks, Unified Communications as a Service (UCaaS), Multi-Protocol Label Switching (MPLS), Plain Old Telephone Service (POTS lines), Voice Hosted, Single point of contact, Billing Aggregation, Cellular Broadband, Cellular, Hosted Phones, Cloud Offerings, Hosted PBX, Voice over IP (VOIP), Cable, Ethernet, Networks, Connectivity, Network Operations Center (NOC), Telecom Expense Management (TEM), Conferencing, Fiber |
| Founded | 1997 |
| Estimated Annual Revenue | $10M - 50M |
| Updated: | 2026-09-17 |
Estimated Website Traffic
The chart shows a growth in traffic to the ten4.us website. In September, traffic increased to 358, compared to 313 in the previous month. The highest traffic in 2026 was recorded in September, reaching 358 visits.
Workforce Turnover
Length of Employment
Ten4's workforce includes employees across a wide range of tenure levels.
10% have been with the company for 1 to 2 years19% have been with the company for 3 to 4 years29% have been with the company for 5 to 7 years10% have been with the company for 8 to 10 years33% have been with the company for more than 11 years
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Ten4 Corporate Information: FAQ
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