Tellabs: Detailed Company Information & Corporate Profile
Summary
Tellabs is a Dallas‑Fort Worth headquartered IT Services firm that began operations in 1978. The company specializes in Optical LAN, enterprise networking, telecommunications access, connectivity, and broadband solutions.
With 100 to 200 employees, Tellabs generates between $500 million and $1 billion in annual revenue and functions as a subsidiary within its industry sector (SIC code 3669).
The leadership team drives the company’s strategic direction: Joel Fischer leads SE Operations, Karen Leos heads Global Sales & Professional Services, while Mark Gervasoni manages Federal Accounts. Technical expertise is provided by engineers such as John Knapek and Jim Gainer, and operational support comes from Todd Hofmeister and Charles Hartley.
| Tellabs Website | tellabs.com |
| Social Links |    |
| Phone Number | 1-972-588-7000 |
| Industries | |
| Tellabs Headquarters Address | 4240 International Parkway, Carrollton, TX, 75007 US |
| Company Size | 100-200 employees |
| Specialities & Services | Optical LAN, Enterprise networking, Telecommunications access, Connectivity, Broadband |
| SIC Code | 3669 |
| NAICS Code | 334290 Other Communications Equipment Manufacturing |
| DMA Code | Dallas-fort Worth Metropolitan Area |
| Founded | 1978 |
| Estimated Annual Revenue | $500M - 1B |
| Operating Status | Subsidiary |
| Updated: | 2026-09-17 |
Competitors
Name | Founded | Type | Employees |
|---|---|---|---|
| 1996 | Public Company | 1.0K - 5.0K | |
| 1996 | Public Company | 5.0K - 10K | |
| 1993 | Privately Held | 250 - 500 | |
| 1996 | Privately Held | 250 - 500 |
Estimated Website Traffic
The chart shows a decline in traffic to the tellabs.com website. In August, traffic decreased to 1947, compared to 2077 in the previous month. The highest traffic in 2026 was recorded in February, reaching 8477 visits.
Workforce Turnover
Number of employees switched from or switched to
Length of Employment
Tellabs's workforce includes employees across a wide range of tenure levels.
1% have been with the company for 3 to 4 years1% have been with the company for 5 to 7 years1% have been with the company for 8 to 10 years96% have been with the company for more than 11 years
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Tellabs Corporate Information: FAQ
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