astronics.com Nasdaq: ATRO Astronics Investor Presentation January 2026 Peter J. Gundermann, Chairman, President & CEO Nancy L. Hedges, Vice President & CFO Exhibit 99.1 Safe Harbor Statement This presentation contains forward-looking statements as defined by the Securities Exchange Act of 1934. One can identify these forward-looking statements by the use of the words “expect,” “anticipate,” “plan,” “may,” “will,” “estimate,” “feeling” or other similar expressions and include all statements with regard to the Company’s preliminary unaudited revenue and bookings for the fourth quarter of 2025 and full year 2025, 2026 revenue expectations, the amount of capital expenditures for 2025, the amount of the impact of tariffs on costs for materials to the Company and level of mitigation potential with respect thereto, the amount of backlog to be recognized as revenue over the next twelve months, the strength and length of time associated with tailwinds for the Aerospace segment, the achievement of profitability in the Test segment, the level of operating leverage the business can obtain and statements regarding the strategy of the Company and its outlook. Forward-looking statements also include all statements related to achieving any revenue or profitability expectations, expectations of continued growth, the level of liquidity, the level of cash generation, the level of demand by customers and markets and the amount of expected capital expenditures. Because such statements apply to future events, they are subject to risks and uncertainties that could cause actual results to differ materially from those contemplated by the statements. Important factors that could cause actual results to differ materially from what may be stated here include the trend in growth with passenger power and connectivity on airplanes, the state of the aerospace and defense industries, the market acceptance of newly developed products, internal production capabilities, the timing of orders received, the status of customer certification processes and delivery schedules, the demand for and market acceptance of new or existing aircraft which contain the Company’s products, the impact of regulatory activity and public scrutiny on production rates of a major U.S. aircraft manufacturer, the need for new and advanced test equipment, customer preferences and relationships, the effectiveness of the Company’s supply chain, and other factors which are described in filings by Astronics with the Securities and Exchange Commission. Except as required by applicable law, the Company assumes no obligation to update forward-looking information in this presentation whether to reflect changed assumptions, the occurrence of unanticipated events or changes in future operating results, financial conditions or prospects, or otherwise. Non-GAAP Financial Measures This presentation will discuss some non-GAAP (“adjusted”) financial measures which we believe are useful in evaluating our performance. You should not consider the presentation of this additional information in isolation or as a substitute for results compared in accordance with GAAP. The non-GAAP (“adjusted”) measures are notated and we have provided reconciliations of comparable GAAP to non-GAAP measures in tables found in the Supplemental Information portion of this presentation. astronics.com 2 astronics.com 3 Astronics Corporation (Nasdaq: ATRO) Market data as of January 14, 2026 [Source: FactSet]; Shares Outstanding as of October 30, 2025; Ownership as of most recent filings $2.4 billionMarket Cap $71.58Recent Price $71.58/ $15.4952-Week Range (high/low) 769,600Average Daily Volume (3 mos.) 1968/1972Established/IPO 31.6 millionShares Out – Common 4.0 millionShares Out – Class B 84.6%Institutional ownership 9.1%Insider ownership Russell 3000®/2000®Index membership INNOVATION. COLLABORATION. SUCCESS. Astronics serves the world’s aerospace, defense, and other mission critical industries with proven, innovative technology solutions. Our strategy is to grow value by developing technologies, organically or through acquisition, for our targeted markets. 69% 8% 21% Other 2% astronics.com 4 Solid Franchise with Leading Market Positions 92%8% Aerospace Test Systems TTM Q3 25 Sales: $830.6 million Commercial Aerospace General Aviation Defense & Government* *Includes Test and Aerospace sales Commercial Aerospace ~50/50 Line Fit/Retrofit ~50/50 Narrowbody/Widebody
astronics.com 29 Created a Portfolio for Growth 2013 2014 2015 2016 2017 2018 2019 PECO Manufacturing » July 2013 » Aerospace: Manufacturing Services PGA Avionics » December 2013 » Aerospace: Power, Executive Armstrong Aerospace » January 2015 » Aerospace: Systems Certification, Power AeroSat » October 2013 » Aerospace: Connectivity EADS N.A. Test » February 2014 » Semiconductor and A&D Test Custom Control Concepts » April 2017 » Aerospace: Executive Telefonix PDT » December 2017 » Aerospace: Connectivity Sale of Semi Test Business » February 2019 » Semiconductor Test Freedom Communication Technologies » July 2019 » A&D Test Diagnosys Test Systems » October 2019 » A&D Test Select Competitors » Airbus KID – Systeme » Burrana » Collins Aerospace » Crane Aerospace ELECTRICAL POWER » Safran » Honeywell » Transdigm » Collins Aerospace LIGHTING & SAFETY AVIONICS » Viavi » Lockheed » National Instruments TEST SOLUTIONS » Meggitt » Safran » Ametek » Transdigm » Whelan » Diehl Aerospace » Kontron » Panasonic » Teradyne » Ametek » Keysight » Rhode & Schwartz Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024 $ (11,098)$ 1,314$ 9,528($ 2,832)($ 11,738)GAAP Consolidated Net Income (Loss) 2,9203,0973,1504,1666,217Interest expense (1,226)5376463,4086,565Income tax expense (benefit) 5,1635,3785,5885,8946,041Depreciation and amortization 1,4391,5572,3452,1571,772Equity-based compensation expense ---624-Early retirement penalty waiver -----Non-cash 401K contribution and quarterly bonus accrual1 3596,2292791,411259Simplification and restructuring initiatives -3,5046,2284,762(332)Legal reserve, settlements and recoveries 1,2702,7532,9756,0665,558Litigation related legal expenses 1,247----Acquisition-related expenses 32,644--3,1616,987Loss on settlement of debt ---1,0322,203Non-cash reserves for customer bankruptcy -1,039-1,6903,527Warranty reserve $ 32,718$ 25,408$ 30,739$ 31,539$ 27,059Adjusted EBITDA Reconciliation of GAAP Net Income (Loss) to Adjusted EBITDA astronics.com 31 Reconciliation to Non-GAAP Performance Measures In addition to reporting net income, a U.S. generally accepted accounting principle (“GAAP”) measure, we present Adjusted EBITDA (earnings before interest, income taxes, depreciation and amortization, non-cash equity-based compensation expense, goodwill, intangible and long-lived asset impairment charges, equity investment income or loss, legal reserves, settlements and recoveries, restructuring charges, loss on extinguishment of debt, unusual specific warranty reserves, and customer bankruptcy reserve) which is a non-GAAP measure. The Company’s management believes Adjusted EBITDA is an important measure of operating performance because it allows management, investors and others to evaluate and compare the performance of its core operations from period to period by removing the impact of the capital structure (interest), tangible and intangible asset base (depreciation and amortization), taxes, equity- based compensation expense, goodwill, and other items as noted previously which are not commensurate with the core activities of the reporting period in which it is included. As such, the Company uses Adjusted EBITDA as a measure of performance when evaluating its business and as a basis for planning and forecasting. Adjusted EBITDA is not a measure of financial performance under GAAP and is not calculated through the application of GAAP. As such, it should not be considered as a substitute for the GAAP measure of net income and, therefore, should not be used in isolation of, but in conjunction with, the GAAP measure. Adjusted EBITDA, as presented, may produce results that vary from the GAAP measure and may not be comparable to a similarly defined non-GAAP measure used by other companies. 1 The sum of the four discrete quarters for the year ended December 31, 2024, does not sum to the zero-balance shown for the full year. In the first quarter of 2024, it was assumed that annual incentive compensation would be paid in stock, and thus such amount ($1.4 million) was presented as an addback for Adjusted EBITDA purposes. In the fourth quarter of 2024, it was concluded that all annual incentive compensation amounts would be paid in cash, and thus the addback for the full year has been eliminated. A reconciling adjustment has not been made to the quarter ended December 31, 2024, as it is deemed unnecessarily distortive to the Adjusted EBITDA measure for the quarter. Consolidated Nine Months EndedThree Months Ended 9/28/20249/27/20259/28/20249/27/2025 $ (13,383)$ (256)$ (11,738)$ (11,098)GAAP Consolidated Net Income 17,8329,1676,2172,920Interest expense 4,940(43)6,565(1,226)Income tax expense (benefit) 18,57216,1296,0415,163Depreciation and amortization expense 6,4145,3411,7721,439Equity-based compensation expense 3,454---Non-cash 401K contribution and quarter bonus accrual1 1,0336,867259359Simplification and restructuring initiatives (332)9,732(332)-Legal reserve, settlements and recoveries 13,6806,9985,5581,270Litigation-related legal expenses -1,247-1,247Acquisition-related expenses 6,98732,6446,98732,644Loss on settlement of debt 2,203-2,203-Non-cash reserves for customer bankruptcy 3,5271,0393,527-Warranty reserve $ 64,927$ 88,865$ 27,059$ 32,718Adjusted EBITDA1 $ 586,886$ 622,061$ 203,698$ 211,447Sales 11.1 %14.3 %13.3 %15.5 %Adjusted EBITDA margin % Reconciliation of GAAP Net Income (Loss) to Adjusted EBITDA astronics.com 32 Reconciliation to Non-GAAP Performance Measures In addition to reporting net income, a U.S. generally accepted accounting principle (“GAAP”) measure, we present Adjusted EBITDA (earnings before interest, income taxes, depreciation and amortization, non-cash equity-based compensation expense, goodwill, intangible and long-lived asset impairment charges, equity investment income or loss, legal reserves, settlements and recoveries, restructuring charges, gains or losses associated with the sale of businesses and grant benefits recorded related to the AMJP program), which is a non-GAAP measure. The Company’s management believes Adjusted EBITDA is an important measure of operating performance because it allows management, investors and others to evaluate and compare the performance of its core operations from period to period by removing the impact of the capital structure (interest), tangible and intangible asset base (depreciation and amortization), taxes, equity-based compensation expense, goodwill and other items as noted previously, which are not commensurate with the core activities of the reporting period in which it is included. As such, the Company uses Adjusted EBITDA as a measure of performance when evaluating its business and as a basis for planning and forecasting. Adjusted EBITDA is not a measure of financial performance under GAAP and is not calculated through the application of GAAP. As such, it should not be considered as a substitute for the GAAP measure of net income and, therefore, should not be used in isolation of, but in conjunction with, the GAAP measure. Adjusted EBITDA, as presented, may produce results that vary from the GAAP measure and may not be comparable to a similarly defined non-GAAP measure used by other companies. 1 Adjusted EBITDA is defined as net income before interest expense, income taxes, depreciation, amortization, and other adjustments. Adjusted EBITDA Margin is defined as Adjusted EBITDA divided by sales. Adjusted EBITDA and Adjusted EBITDA Margin are not measures determined in accordance with GAAP and may not be comparable with Adjusted EBITDA and Adjusted EBITDA Margin as used by other companies. Nevertheless, the Company believes that providing nonGAAP financial measures, such as Adjusted EBITDA and Adjusted EBITDA Margin, are important for investors and other readers of the Company’s financial statements.