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Astrodyne TDI
Engineering and Manufacturing Equipment · Mansfield, United States · Founded 1994
Engineered power conversion and EMI filtering solutions. MoreLess
Astrodyne TDI is a global designer and manufacturer of highly engineered power solutions for demanding applications. The company's history is one of strategic growth through acquisitions. Astrodyne was founded in 1994, and in 2014, it acquired TDI Power, a company established over 50 years prior with expertise in high-power applications. This merger created a comprehensive provider of power solutions, combining Astrodyne's low-to-medium power products and EMI filters with TDI's high-power capabilities. Subsequent acquisitions included the EMI filter lines from Radius Power, LCR Electronics, and Filter Concepts, and, more recently, Powertronix in 2023, which added toroidal transformers and power distribution equipment to its portfolio. In November 2017, the company was acquired by Tinicum L.P., a private investment partnership. The company's business model is centered on a collaborative, engineer-to-engineer approach to develop custom and standard power solutions for original equipment manufacturers (OEMs). Astrodyne TDI serves a diverse range of high-stakes markets, including semiconductor capital equipment, medical, aerospace, defense, and industrial automation. Its clients are companies that require precise and reliable power conversion in harsh or highly variable conditions. The firm operates globally with engineering and manufacturing centers in the United States and China, and a presence in Europe and Malaysia, allowing it to provide localized support with a global reach. Astrodyne TDI's product portfolio is extensive, featuring AC/DC power supplies, DC/DC converters, EMI/RFI filters, power distribution units (PDUs), and transformers. Its products are designed for critical applications such as life-saving heart-assist devices, semiconductor manufacturing equipment, military aircraft, radar systems, and industrial control systems. The company provides solutions with various cooling methods, including liquid-cooled, forced air, and conduction, to meet specific environmental and operational demands. A key differentiator is its ability to create fully customized, turnkey solutions that integrate power supplies with features like RF filtering, digital communication, and variable output, helping clients reduce costs and time to market. Keywords: power conversion, EMI filters, RFI filters, AC/DC power supplies, DC/DC converters, power distribution units, PDU, toroidal transformers, custom power solutions, medical power supplies, military power supplies, aerospace power solutions, semiconductor equipment power, industrial automation, liquid-cooled power, high-reliability power, COTS power supplies, low leakage current, power management, electromagnetic interference, power engineering, motion control, ruggedized power, electrical equipment, demanding applications
Company overview
Astrodyne TDI company information
The essential company record, classifications and operating signals in one place.
- Status
- Acquired
- Founded
- 1994
- Headquarters
- Mansfield, United States
- Employees
- 383
- Open positions
- 11
- Dealroom signal
- 27.0
- Investment activity
- 1 companies · latest Jan 2024
- Capital deployed
- —
- Preferred round
- ACQUISITION
Valuation & funding
Astrodyne TDI funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| ACQUISITION✓Exit | Jul 2026 | $1.4B | $1.4B | TE Connectivity | ↗ |
| SERIES CEquity / VC | May 2005 | $26M | $106M | MVM Life Science Partners · Advent International · Pappas Capital · Oakwood Medical Investors | — |
| SERIES BEquity / VC | Aug 2002 | $10M | $40M | POD Holding · Zero Stage Capital · CB Health Ventures | — |
| SERIES AEquity / VC | Feb 2000 | $4M | $16M | CB Health Ventures · Zero Stage Capital | — |
Financials
Workforce over time
Available workforce history. Financial fields without reported data are omitted.
| Year | Employees |
|---|---|
| 2026 | 391 |
| 2025 | 216 |
| 2024 | 216 |
| 2023 | 216 |
| 2022 | 216 |
| 2021 | 220 |
| 2020 | 200 |
Growth signals
Astrodyne TDI website traffic
Latest recorded traffic for Astrodyne TDI is 30K monthly website visits, down 23.1% over the last three months. Astrodyne TDI's team grew 77.3% over the past year.
Hiring
Open positions at Astrodyne TDI
Current openings linked to this company in Dealroom.
Comparisons
Astrodyne TDI compared with similar companies
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Capital deployed
Astrodyne TDI investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Talent graph
Astrodyne TDI's talent
Source: Dealroom Talent Intelligence.
Investors
10 investors on Astrodyne TDI's cap table
Sourced from Dealroom's funding and investor records.





Global footprint
Where Astrodyne TDI has talent and traffic
In the news
Latest news about Astrodyne TDI
Recent press, funding announcements, and product moves mentioning Astrodyne TDI — open to read from the original sources.
Market sentiment
What the market is saying about Astrodyne TDI
An AI-synthesized read of the highest-engagement posts about Astrodyne TDI on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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