MARCHEX INC

Report of Independent Registered Public Accounting Firm

To the Stockholders' and the Board of Directors of Marchex, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Marchex, Inc. and its subsidiaries (the Company) as of December 31, 2024 and 2023, the related consolidated statements of operations, stockholders’ equity and cash flows for the years then ended, and the related notes to the consolidated financial statements (collectively, the financial statements). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2024 and 2023, and the results of its operations and its cash flows for the years then ended, in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits, we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective or complex judgments. The communication of the critical audit matter does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Occurrence of Pay per Call Revenue

As described in Note 1 of the consolidated financial statements, the Company generates revenue from the Company's conversational analytics technology platform when customers pay the Company a fee for call, text, or other communication related data element they receive from calls or texts or for each phone number tracked based on a pre-negotiated rate. Revenue is recognized over time as the service is performed.

We identified the occurrence of pay per call revenue as a critical audit matter as the processes to track and record the calls on which revenue is recorded is based on data from internally developed systems, which are complex and require an increased audit effort around assessing the reliability of data.

Our audit procedures related to the occurrence of calls included performing the following audit procedures, among others:

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We obtained an understanding of the relevant controls related to the occurrence of calls and tested such controls for design and operating effectiveness.

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In order to assess the accuracy of information generated from the internally developed information systems, we reconciled the total call information to the third-party vendor bills.

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On a sample basis, we agreed the minutes from the call information to the vendor bill.

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On a sample basis, we listened to calls to determine the call occurred.

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On a sample basis, we obtained the customer invoice, the supporting call log data from the Company’s internal tracking system relating to the invoiced period, and the underlying customer contracts. For each sample we recalculated the invoiced amount.

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We tested the reasonableness of changes in pay per call revenue by performing trend analysis which compared month-over month revenues.

/s/ RSM US LLP

We have served as the Company's auditor since 2022.

Seattle, Washington

March 14, 2025