Castellum, Inc. · AMEX:CTM
Castellum — Q1 2026 Earnings Presentation
19 slides from Castellum's earnings presentation, May 13, 2026
Slide 1: Investor Presentation May 2026
pilin NYSE-American: CTM CASTELLUM Investor Presentation May 2026 Mission Ready Defense Technology Delivering Al-enabled Cyber, Electronic Warfare, C5ISR, and Decision Advantage.
Slide 2: Cautionary Statement Concerning Forward-Looking Statements
ppildag CASTELLUM Cautionary Statement Concerning Forward-Looking Statements: This release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended and Section 2£ of the Securities Exchange Act of 1934, as amended. These forward-looking statemen
Slide 3: Agenda and Snapshot
CASTELLUM Castellum’s Evolution Castellum Today Investment Highlights Programs We Support Contract Wins, Backlog & Pipeline Key Financial Metrics Leadership Growth Strategy Contact and Appendix Snapshot: NYSE American Shares Outstanding (3/31/2026) Market Cap. (5/8/2026)
Slide 4: Castellum's Evolution
—— UV CASTELLUM Founded in 2019 Listed on NYSE American in Oct 2022 ACCELERATE ORGANIC GROWTH Jul 2024— Dec 2025 BUILD PLATFORM & INTEGRATE Nov 2019—Jul 2024 a + Completed 7 acquisitions + Built and integrated a scalable public F company platform : + Focused on delivering leading-edge technology ser
Slide 5: Castellum Today: Capabilities and Subsidiaries
pptlieg CASTELLUM Relevant, powerful, high demand technologies and mission capabilities: Subsidiaries: Systems and Electronic Modeling and saeae Warfare, Simulation Engineering, informatio systems peas arfare Model: Integration Strategic Cyber Security, po eo Mision ps Intelligence Cyber Warfare, ih
Slide 6: Positioned to deliver shareholder value
CASTELLUM @} Positioned to deliver shareholder value through Highly Resilient Business disciplined execution and organic growth. Defense focused and federal IT & cybersecurity platform positioned to perform through budget cycles and administration changes Record Revenue & Contract Wins Clear Path to
Slide 7: Programs We Support
CASTELLUM @} Aircraft Launch and Integrated Fresnel Lens Augmented Reality PMA-290 P-8 Poseidon Recovery Optical Landing System Maintenance System Special Projects (ALRE) (IFLOLS) (ARMS) / XRa
Slide 8: Model Based System Engineering, Data Analytics, Cyber, Electronic Warfare
© castertum Model Based System Data Analytics Cyber Security and Warfare Electronic Warfare Engineering U.S. ARMY @ CYBER COMMAND
Slide 9: Supporting Naval Air Warfare Center and PMA 290
sotlag UV CASTELLUM $50M Supporting Naval Air Warfare Center Aircraft Providing Special Missions support Supporting Naval Air Warfare Center upp of the Naval Air Systems Command Lakehurst Mission Operations and Division Lakehurst to provide SSA and cyber Program Office PMA 290 Special Integration th
Slide 10: Entered 2026 on a very strong note
CASTELLUM Entered 2026 on a very strong note: 2025 Contract Wins Contract Backlog * | Opportunity Pipeline * $219M+ $273.3M $938M | 5+ year runway | vs $265M at 12/31/25 | vs $817M at 12/31/25 Top three revenue-producing contracts | } * As of 3/31/2026 Contract Backlog is defined as the total value
Slide 11: Revenue, Gross Profit, Adj EBITDA
CASTELLUM Revenue ($ in millions) Gross Profit ($ in millions) Adj EBITDA ($ in millions) 7 — 60 x 52.9 25 aa = a 50 m7 83 48 20 es 187 aga 1 = 40 ae ial 0.8 = 15 30 5.4 ii 06 10 7 20 13.3 14.3 6.2 = 0.4 = 10 ra | 5 | 0.2 0.3 o-—— —— 0 Oo 2019 2021 2022 2024 2025 a ses AES CLARE 2028 2024 2025 1.202
Slide 12: Led by Highly Experienced Management Team and Board
CASTELLUM @} Led by Highly Experience Management Team and Board Executive Leadership and Management Board of Directors Glen Ives, President & CEO Lieutenant General Bernard Champoux, USA (ret), Chair David Bell, CFO & Treasurer Mr. Mark Alarie Andrew Merriman, COO General John Campbell, USA, (ret) T
Slide 13: Growth Strategy: Organic Expansion
Pe potllg U CASTELLUM Growth Strategy ORGANIC EXPANSION: Driving Revenue Growth and Improve Margins Drive revenue growth by wining new prime contracts and task orders Integrate and promote cross selling between subsidiaries to unlock efficiencies, and new contract opportunities Presence across all D
Slide 14: Growth Strategy (cont.): Acquisition Strategy
Pe potling U CASTELLUM ] Growth Strategy (cont.) ACQUISITION STRATEGY: Adding Scale and Capabilities Selective, accretive acquisitions that expand core capabilities Companies with strong existing federal prime contracts and recurring revenue Companies with cultural and operational fit to enable seam
Slide 15: Castellum Investor Relations
@} CASTELLUM Castellum. Inc. Investor Relations 1934 Old Gallows Rd, Suite 350 The Equity Group Vienna, VA 22182 Lena Cati 703) 752-6157 212) 836-9611 Icati@theequitygroup.com Val Ferraro 212) 836-9633 vferraro @theequitygroup.com
Slide 16: Appendix
CASTELLUM —————ae _ sotlag a ee i ee Appendix
Slide 17: Consolidated Balance Sheet
sotlag CASTELLUM Consolidated Balance Sheet (unaudited) Assets frurrent Assets: cash s Accountsreceival Contract asset Due from buyer Prepaid income tres Prepaid expenses and other current assets Totalcurrent assers Fixed assets, net INon-Current Assets: Due from buyer, net of current portion Reht o
Slide 18: Consolidated Statement of Operations
—— CASTELLUM Consolidated Statement of Operations Three Months Ended March 31, Revenues cost of Revenues lGross Profit lOperating Expenses Indirect costs Overhead eral and admin Total operating expenses Loss From Operations Before Other Income lother income (Expense) Gain from change in fair value o
Slide 19: Reconciliation of Non-GAAP Adjusted EBITDA
sotlag CASTELLUM Reconciliation of Non-GAAP Adjusted EBITDA Revenues Gross profit Loss from operations before other income (expense) add Back Depreciation and amortization Adjust Stock based compensation non-cash and one-time charges Non-recurring charges Total non-cash charges Non-GAAP Adjusted EBI