ESCO TECHNOLOGIES INC

The Registrant is ESCO Technologies Inc. (NYSE: ESE), sometimes referred to in this report as ESCO. Except where the context indicates otherwise, the terms “Company”, “we”, “our” and “us” are used in this report to refer to ESCO together with its subsidiaries through which its businesses are conducted. We are:

Our business is focused on generating predictable and profitable long-term growth in sales and earnings through continued expansion of our product offerings across each of our business segments. Our corporate strategy is centered on a multi-segment portfolio serving our established high-growth, high-margin end markets through a number of wholly-owned direct and indirect subsidiaries. Our stock is listed on the New York Stock Exchange, where its ticker symbol is “ESE”.

Our fiscal year ends September 30. Throughout this Annual Report, unless the context indicates otherwise, references to a year (for example 2025) refer to our fiscal year ending on September 30 of that year, and references to the “Consolidated Financial Statements” refer to our Consolidated Financial statements included in the Financial Information section of this Annual Report beginning on page F-1, an Index to which is provided on page F-1.

We classify our business operations into three segments for financial reporting purposes, although for reporting certain financial information we treat Corporate activities as a separate segment. Our three operating segments during 2025, together with the significant domestic and foreign operating subsidiaries or businesses within each segment, are as follows:

Aerospace & Defense (A&D):

PTI Technologies Inc. (PTI)

Crissair, Inc. (Crissair)

Globe Composite Solutions, LLC (Globe), which except as the context may otherwise indicate, also includes Westland Technologies, Inc. (Westland)

Mayday Manufacturing Co. (Mayday)

ESCO Maritime Solutions (Maritime), which except as the context may otherwise indicate, includes ESCO Maritime Solutions, Ltd., DNE Technologies, Inc. (DNE), EMS Development Corporation (EMS), Measurement Systems, Inc. (MSI) and PMES I Limited (all acquired April 25, 2025)

Utility Solutions Group (USG):

Doble Engineering Company

Morgan Schaffer Ltd. (Morgan Schaffer)

I.S.A. – Altanova Group S.r.l. and affiliates (Altanova)

NRG Systems, Inc. (NRG)

Except as the context may otherwise indicate, the term “Doble” as used herein includes Doble Engineering Company, Morgan Schaffer, Altanova and ESCO’s other USG subsidiaries except NRG.

RF Test & Measurement (Test):

ETS-Lindgren, which except as the context may otherwise indicate, includes ETS-Lindgren Inc., MPE Limited (MPE) and ESCO’s other Test segment subsidiaries

Our operating subsidiaries are engaged primarily in the research, development, manufacture, sale and support of the products and systems described below. Their respective businesses are subject to a number of risks and uncertainties, including without limitation those discussed in Item 1A, “Risk Factors.” See also Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” and “Forward-Looking Information.”

We are continually seeking ways to reduce our overall operating costs, streamline business processes and enhance the branding of our products and services. Our Company-wide “ESCO Operating System” initiative, begun in 2025, has already produced numerous velocity and cost improvements. We also continue to seek opportunities to supplement our growth by making strategic acquisitions. In April 2025, we acquired the Signature Management & Power (“SM&P”) business of Ultra Electronics Holdings Limited, comprising Ultra PMES Limited (subsequently renamed as PMES I Limited), a private limited company incorporated in England and Wales, Measurement Systems, Inc., a Delaware corporation, EMS Development Corporation, a New York corporation, and DNE Technologies, Inc., a Delaware corporation. The SM&P business, which we now refer to as ESCO Maritime Solutions or Maritime, includes Signature Management products, providing solutions for surface ships and submarines that provide magnetic and electric field countermeasures to prevent underwater mine and sensor detection, and Power Management products, providing innovative and highly-engineered motors that drive critical ship propulsion systems with an ultra-quiet design ensuring low vibration levels to increase stealth capabilities; both of these product lines are highly complementary to our current naval programs. In November 2023, we acquired MPE Limited (MPE), a United Kingdom-based global manufacturer of high-performance products for military, utility, telecommunication and other critical infrastructure applications. In February 2023 we acquired CMT Materials, LLC and its affiliate Engineered Syntactic Systems, LLC (together, CMT). CMT is a leading supplier of syntactic materials for buoyancy and specialty applications, with expertise in designing and manufacturing custom syntactic foam components and systems utilized in industrial, oceanographic, military, and naval applications. Information about these acquired businesses is provided in the following section, “Products,” and in Note 2 to the Consolidated Financial Statements.