Bridgeline Digital, Inc.

ANNUAL REPORT ON FORM 10-K FOR THE YEAR ENDED September 30, 2025

INDEX

Forward Looking Statement

All statements included in this Annual Report on Form 10-K, other than statements or characterizations of historical fact, are forward-looking statements. These “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995, are based on our current expectations, estimates and projections about our industry, management’s beliefs, and certain assumptions made by us, all of which are subject to change. Forward-looking statements can often be identified by words such as “anticipates,” “expects,” “intends,” “plans,” “predicts,” “believes,” “seeks,” “estimates,” “may,” “will,” “should,” “would,” “could,” “potential,” “continue,” “ongoing,” similar expressions, and variations or negatives of these words. These statements appear in a number of places in this Form 10-K and include statements regarding the intent, belief or current expectations of Bridgeline Digital, Inc. These forward-looking statements are not guarantees of future results and are subject to risks, uncertainties and assumptions, including, but not limited to: business operations and the business of our customers, suppliers and partners; our ability to retain and upgrade current customers, increasing our recurring revenue, our ability to attract new customers, our revenue growth rate; our history of net loss and our ability to achieve or maintain profitability; our liability for any unauthorized access to our data or our users’ content, including through privacy and data security breaches; any decline in demand for our platform or products; changes in the interoperability of our platform across devices, operating systems, and third party applications that we do no control; competition in our markets; our ability to respond to rapid technological changes, extend our platform, develop new features or products, or gain market acceptance for such new features or products, particularly in light of potential disruptions to the productivity of our employees resulting from remote work; our ability to manage our growth or plan for future growth, and our acquisition of other businesses and the potential of such acquisitions to require significant management attention, disrupt our business, or dilute stockholder value; the volatility of the market price of our common stock, the ability to maintain our listing on the Nasdaq Capital Market; or our ability to maintain an effective system of internal controls as well as other risks described in our filings with the Securities and Exchange Commission. Any of such risks could cause our actual results to differ materially and adversely from those expressed in any forward-looking statement. Bridgeline Digital, Inc. assumes no obligation to, and does not currently intend to, update any such forward-looking statements, except as required by applicable law. We urge readers to* *review carefully the risk factors described herein and in the other documents that we file with the Securities and Exchange Commission. You can read these documents atwww.sec.gov.

Where we say “we,” “us,” “our,” “Company” or “Bridgeline” or “Bridgeline Digital” we mean Bridgeline Digital, Inc.