![]() Sennheiser Sennheiser electronic develops, manufactures, and markets headphones, headsets, microphones, and integrated systems. | ![]() Poly Poly (also known as Plantronics, formerly known as Polycom) is a producer of audio and video electronics for commercial use. | ||
Founding Date | Founding Date 1964 | Founding Date 1945 | Founding Date 1961 |
Type | Type Private | Type Private | Type Subsidiary |
Tags | |||
Locations | Locations Framingham, US HQ Sydney, AU Vancouver, CA Saint Germain En Laye, FR Esslingen, DE Hong Kong, HK Tokyo, JP see more | Locations Wedemark, DE HQ | Locations Scotts Valley, US HQ North Sydney, AU Toronto, CA Meudon, FR München, DE Milano, IT Torri Bianche, IT see more |
Employees | Employees 6,6881% decrease | Employees 1,856 | Employees 3,022 |
Financial | |||
Revenue (est.) | Revenue (est.) $3.1b (Y, 2023) | Revenue (est.) N/A | Revenue (est.) $1.7b (FY, 2022) |
Operating ⚠ | |||
Products | Products 77 (May, 2024) | Products N/A | Products 16 k (Q3, 2017) |

Sennheiser electronic develops, manufactures, and markets headphones, headsets, microphones, and integrated systems.
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Poly (also known as Plantronics, formerly known as Polycom) is a producer of audio and video electronics for commercial use.
View company