![]() Espey Manufacturing & Electronics Espey Manufacturing & Electronics is a company that designs, develops, and manufactures industrial power supplies and transformers. | ![]() Filtronic Filtronic (formerly known as Filtronic Comtek) is a company that designs, manufactures, and sells radio frequency, microwave, and millimeter wave products. | ![]() Teledyne ETM Teledyne ETM (formerly known as ETM-Electromatic) is a company that designs and builds high-voltage and high-power electronic subsystems. | |
Founding Date | Founding Date 1928 | Founding Date 1977 | Founding Date 1973 |
Type | Type Public | Type Public | Type Subsidiary |
Tags | |||
Locations | Locations Saratoga Springs, US HQ | Locations Sedgefield, GB HQ High Peak, GB Leeds, GB Salisbury, US | Locations Newark, US HQ Loveland, US |
Employees | Employees 1523% increase | Employees 133 | Employees 901% decrease |
Valuation ($) | Valuation ($) 85.5 m | Valuation ($) 179.4 m | Valuation ($) N/A |
Financial | |||
Revenue (est.) | Revenue (est.) $44m (FY, 2025) | Revenue (est.) £56.3m (FY, 2025) | Revenue (est.) N/A |
Cost of goods | Cost of goods $31.3m (FY, 2025) | Cost of goods £16.7m (FY, 2025) | Cost of goods N/A |
Gross profit | Gross profit $12.7m (FY, 2025) | Gross profit £40.1m (FY, 2025) | Gross profit N/A |
Net income | Net income $8.1m (FY, 2025) | Net income £14m (FY, 2025) | Net income N/A |
Operating ⚠ | |||
Markets | Markets N/A | Markets 6 (FY, 2021) | Markets 8 (Sep, 2022) |

Filtronic (formerly known as Filtronic Comtek) is a company that designs, manufactures, and sells radio frequency, microwave, and millimeter wave products.
View company
Teledyne ETM (formerly known as ETM-Electromatic) is a company that designs and builds high-voltage and high-power electronic subsystems.
View company