CAMAS, Wash., August 7, 2025 - nLIGHT, Inc. (Nasdaq: LASR), a leading provider of high-power lasers for mission critical directed energy, optical sensing, and advanced manufacturing applications, today reported financial results for the second quarter of 2025 that exceeded expectations.

“2Q 2025 represented a solid quarter of execution for nLIGHT, with revenue, gross margin and Adjusted EBITDA all ahead of our expectations,” commented Scott Keeney, nLIGHT’s President and Chief Executive Officer. “Increased demand for our portfolio of directed energy products and laser sensing solutions is providing us with better visibility into the second half of the year, and we are increasing our aerospace and defense outlook for 2025 to growth of at least 40% year-over-year, up from our prior outlook calling for growth of at least 25%."

Revenues of $61.7 million for the second quarter of 2025 were up 22.2% compared to $50.5 million for the second quarter of 2024. Gross margin was 29.9% for the second quarter of 2025 compared to 23.5% for the second quarter of 2024. GAAP net loss for the second quarter of 2025 was $3.6 million, or $0.07 per diluted share, compared to net loss of $11.7 million, or $0.25 per diluted share, for the second quarter of 2024. Non-GAAP net income for the second quarter of 2025 was $2.9 million, or $0.06 per diluted share, compared to non-GAAP net loss of $4.6 million, or $0.10 per diluted share, for the second quarter of 2024. Reconciliations of the non-GAAP metrics presented here to the most directly comparable GAAP metric have been provided in the tables included at the end of this release.

For the third quarter of 2025, nLIGHT expects revenues to be in the range of $62 million to $67 million. The midpoint of $64.5 million includes Products revenue of approximately $45 million and Advanced Development revenue of approximately $19 million. nLIGHT expects overall gross margin to be in the range of 24% to 30%, with Products gross margin in the range of 32% to 36% and Advanced Development gross margin of approximately 8%. nLIGHT expects Adjusted EBITDA to be in the range of $2.0 million to $6.0 million.

We have not reconciled our outlook for Adjusted EBITDA because unrealized and realized foreign exchange gains and losses cannot be reasonably calculated or predicted nor can the probable significance be determined at this time. Accordingly, a reconciliation is not available without unreasonable effort.

Parties interested in listening to nLIGHT’s quarterly conference call may do so by dialing 1-800-549-8228 (U.S., toll-free) or +1-289-819-1520 (international and toll), with the conference title: nLIGHT Second Quarter 2025 Earnings. The call can also be accessed via the web by going to nLIGHT’s Investor Relations page at http://investors.nlight.net.

In addition to U.S. GAAP results, this press release contains non-GAAP financial results, including Adjusted EBITDA, non-GAAP net income (loss) and non-GAAP net income (loss) per share, basic and diluted. We use Adjusted EBITDA to help us evaluate our business, measure our performance, identify trends affecting our business, formulate business plans and make strategic decisions. In addition to our results determined in accordance with GAAP, we believe Adjusted EBITDA is a meaningful measure of performance as it is commonly utilized by us and the investment community to analyze operating performance in our industry. Similarly, we believe that providing non-GAAP net income (loss) and non-GAAP net income (loss) per share, basic and diluted, is useful to our investors as they present an informative supplemental view of our results from period to period by removing the effect of stock-based compensation expense and other non-recurring items. However, the non-GAAP metrics presented herein are specific to us and may not be comparable to similar metrics disclosed by other companies because of differing methods used by other companies in calculating them.

We define Adjusted EBITDA as net income (loss) adjusted for income tax expense (benefit), other non-operating income or expense, interest income or expense, depreciation and amortization, stock-based compensation, acquisition and integration-related costs, and other non-recurring items as determined by management, as applicable. We define non-GAAP net income (loss) as GAAP net income (loss) adjusted for stock-based compensation, amortization of purchased intangibles, acquisition and integration-related costs, and other non-recurring items as determined by management, as applicable. We define non-GAAP net income (loss) per share, basic and diluted, as non-GAAP net income (loss) divided by the weighted-average number of shares outstanding during the respective period plus the dilutive effect of any common stock equivalents during the period in the case of non-GAAP net income (loss) per share, diluted.

Tables presenting the reconciliation of net loss to Adjusted EBITDA, as well as the reconciliation of GAAP to non-GAAP net income (loss) and GAAP to non-GAAP net income (loss) per share, basic and diluted, are included at the end of this press release.

Certain statements in this release are “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, Section 21E of the Securities Exchange Act of 1934, as amended, and the Private Securities Litigation Reform Act of 1995. Words such as “outlook,” “guidance,” “expects,” “intends,” “projects,” “plans,” “believes,” “estimates,” “targets,” “anticipates,” and similar expressions may identify these forward-looking statements. Examples of forward-looking statements include, but are not limited to, statements regarding expected revenues, gross margin, and Adjusted EBITDA, and our business strategy and ability to profitably grow our business, as well as any other statement that does not directly relate to any historical or current fact. Forward-looking statements are based on our current expectations and assumptions, which may not prove to be accurate. These statements are not guarantees and are subject to risks, uncertainties and changes in circumstances that are difficult to predict. Many factors could cause actual results to differ materially and adversely from these forward-looking statements, including but not limited to our ability to compete successfully in the markets for our products; changes in the markets we serve or in the global economy; our ability to increase our volumes and decrease our costs to offset potential declines in the average selling prices of our products; rapid technological changes in the markets that we participate in; our ability to develop and maintain products that can achieve market acceptance; our ability to generate sufficient revenues to achieve or maintain profitability in the future; our high levels of fixed costs and inventory and their effect on our gross profits and results of operations if demand for our products declines or we maintain excess inventory levels; our ability to manage growth and spending during economic downturns; our manufacturing capacity and operations and their suitability for future levels of demand; our reliance on third parties to manufacture certain of our products and product components; our reliance on a small number of customers for a significant portion of our revenues; our ability to manage risks associated with international customers and operations; the effect of government export and import controls on our ability to compete in international markets; our ability to protect our proprietary technology and intellectual property rights; fluctuations in our quarterly results of operations and other operating measures; and the effect on our business of claims, lawsuits, government investigations, other legal or regulatory proceedings, or commercial or contractual disputes that we are or may become involved in. Additional information concerning these and other factors can be found in nLIGHT's filings with the Securities and Exchange Commission (the “SEC”), including other risks, relevant factors and uncertainties identified in the “Risk Factors” section of nLIGHT's most recent Annual Report on Form 10-K or subsequent filings with the SEC. nLIGHT undertakes no obligation to update publicly or revise any forward-looking statements contained herein to reflect future events or developments, except as required by law.

The nLIGHT logo and “nLIGHT” are registered trademarks or trademarks of nLIGHT, Inc. in various jurisdictions.

nLIGHT, Inc. is a leading provider of high-power lasers for mission critical directed energy, optical sensing, and advanced manufacturing applications. Headquartered in Camas, Washington, nLIGHT employs approximately 800 people with operations in the United States, Europe and Asia. For more information, please visit www.nlight.net.

John Marchetti

Vice President, Corporate Development & Investor Relations

nLIGHT, Inc.

(360) 566-4460

john.marchetti@nlight.net

Consolidated Statements of Operations

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Condensed Consolidated Balance Sheets

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Consolidated Statements of Cash Flows

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Reconciliation of GAAP Financial Metrics to Non-GAAP

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(1) There is no income tax effect related to the stock-based compensation and amortization of purchased intangibles adjustments due to the full valuation allowance in the United States.

Supplemental Schedule of Financial Information

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