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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
client focusb2bbusiness modelManufacturingsectorElectronic ComponentssectorIndustrial TechnologysectorVerified Unicorns and $1B ExitssectorPower ConvertersindustryEngineering and Manufacturing Equipment

Valuation & funding

Astrodyne TDI funding history

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
ACQUISITIONExit 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
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Financials

Workforce over time

Available workforce history. Financial fields without reported data are omitted.

YearEmployees
2026 391
2025 216
2024 216
2023 216
2022 216
2021 220
2020 200
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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.

Latest monthly visits30K 3-month web change-23.1% 1-year team growth+77.3%
Monthly website visits26 observations · Oct 2020–Jul 2026
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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

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Team profiled 3 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators Hidden — book a demo quality score
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Investors

10 investors on Astrodyne TDI's cap table

Sourced from Dealroom's funding and investor records.

Series A 3 investors entered at this stage
CB Health Ventures
Zero Stage Capital
POD Holding
Series B+ 4 investors entered at this stage
Advent International
MVM Life Science Partners
Pappas Capital
Oakwood Medical Investors
Other known 3 additional known investors
TE Connectivity
Backcast Partners
Tinicum

Global footprint

Where Astrodyne TDI has talent and traffic

Workforce by country
🇺🇸 United States · Mansfield HQ
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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.

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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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