Calix Competitors and Similar CompaniesClear all
Tellabs's competitors and similar companies include ADTRAN, Silver Peak and Gamma.
 ADTRAN ADTRAN Holdings is a company that provides networking and communications platforms, software, and services focused on the broadband access market. |  Silver Peak Silver Peak is a company providing physical and virtual appliances and networking equipment. | |||
Founding Date | Founding Date 1978 | Founding Date 1985 | Founding Date 2004 | Founding Date 2002 |
Type | Type Private | Type Public | Type Private | Type Public |
Tags | ||||
Locations | Locations Carrollton, US HQ | Locations Huntsville, US HQ Melbourne, AU South Melbourne, AU Wien, AT São Paulo, BR Montreal, CA Shenzhen, CN see more | Locations Santa Clara, US HQ München, DE Shibuya City, JP | Locations London, GB HQ Düsseldorf, DE Oberkotzau, DE Budapest, HU Amstelveen, NL Amsterdam, NL Delft, NL see more |
Employees | Employees 1,156 | Employees 3,0914% decrease | Employees 2521% decrease | Employees 1,926 |
Valuation ($) | Valuation ($) N/A | Valuation ($) 511 m | Valuation ($) N/A | Valuation ($) 2 b |
Financial | ||||
Revenue (est.) | Revenue (est.) N/A | Revenue (est.) $1.1b (FY, 2025) | Revenue (est.) N/A | Revenue (est.) £645.8m (FY, 2025) |
Cost of goods | Cost of goods N/A | Cost of goods $668.9m (FY, 2025) | Cost of goods N/A | Cost of goods £257.6m (FY, 2025) |
Gross profit | Gross profit N/A | Gross profit $415m (FY, 2025) | Gross profit N/A | Gross profit £388.2m (FY, 2025) |
Operating ⚠ | ||||
Product Categories | Product Categories 13 (Jan, 2023) | Product Categories 3 (FY, 2021) | Product Categories N/A | Product Categories N/A |
Solutions | Solutions 2 (Jan, 2023) | Solutions N/A | Solutions 5 (Nov, 2022) | Solutions N/A |
For sources of this data, please see the company profile
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ADTRAN
HQ
Huntsville, US
Employees
3,091↓ 4% decrease
ADTRAN Holdings is a company that provides networking and communications platforms, software, and services focused on the broadband access market.
View companySilver Peak
HQ
Santa Clara, US
Employees
252↓ 1% decrease
Silver Peak is a company providing physical and virtual appliances and networking equipment.
View company
Gamma
HQ
London, GB
Employees
1,926
Gamma Communications is a supplier of communication products and services.
View company