Significant Accounting Policies (Policies)	6 Months Ended
Jun. 30, 2026
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include the accounts of Baldwin and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. As the sole manager of Baldwin Holdings, Baldwin operates and controls all the business and affairs of Baldwin Holdings, and has the sole voting interest in, and controls the management of, Baldwin Holdings. Accordingly, Baldwin consolidates Baldwin Holdings in its consolidated financial statements, resulting in a noncontrolling interest related to the membership interests of Baldwin Holdings (the “LLC Units”) held by Baldwin Holdings’ members in the Company’s consolidated financial statements. The Company has prepared these condensed consolidated financial statements in accordance with Accounting Standards Codification (“ASC”) Topic 810, Consolidation (“Topic 810”). Topic 810 requires that if an enterprise is the primary beneficiary of a variable interest entity, the assets, liabilities, and results of operations of the variable interest entity should be included in the consolidated financial statements of the enterprise. The Company has recognized certain entities as variable interest entities, of which the Company is the primary beneficiary, and has included the accounts of these entities in the consolidated financial statements. Refer to Note 4 for additional information regarding the Company’s variable interest entities. Topic 810 also requires that the equity of a noncontrolling interest shall be reported on the condensed consolidated balance sheets within total equity of the Company. Certain redeemable noncontrolling interests are reported on the condensed consolidated balance sheets as mezzanine equity. Topic 810 also requires revenues, expenses, gains, losses, net income or loss, and other comprehensive income or loss to be reported in the consolidated financial statements at consolidated amounts, which include amounts attributable to the owners of the parent and the noncontrolling interests.
Use of Estimates	Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosures of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from these estimates. Significant estimates underlying the accompanying condensed consolidated financial statements include the application of guidance for revenue recognition, impairment of intangible assets and goodwill, the valuation of acquired relationships, the valuation of contingent consideration and the Tax Receivable Agreement liabilities.
Recent Accounting Standards	In November 2024, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40)—Disaggregation of Income Statement Expenses (“ASU 2024-03”) to improve the disclosures about a public business entity’s expenses and supply more detailed information about the types of expenses in commonly presented expense captions. These expense captions include purchases of inventory, employee compensation, depreciation, amortization, and depletion in commonly presented expense captions such as cost of sales, selling, general and administrative expense, and research and development. This guidance is effective for annual reporting periods beginning after December 15, 2026 and interim reporting periods beginning after December 15, 2027. The Company expects the adoption of this standard to expand its expense disclosures, but otherwise have no impact on the consolidated financial statements. In May 2025, the FASB issued ASU No. 2025-03, Business Combinations (Topic 805) and Consolidation (Topic 810): Determining the Accounting Acquirer in the Acquisition of a Variable Interest Entity (“ASU 2025-03”). This ASU amends the guidance for identifying the accounting acquirer in a business combination effected primarily by exchanging equity interests when the legal acquiree is a variable interest entity (“VIE”) that meets the definition of a business. Under the new guidance, entities must consider the factors in ASC 805-10-55-12 through 55-15—such as relative voting rights, composition of the governing body and management, and size of the combining entities—regardless of whether the legal acquiree is a VIE. This change is intended to improve consistency and comparability in financial reporting for economically similar transactions. The guidance is effective for annual reporting periods beginning after December 15, 2026, and interim periods within those annual periods, with early adoption permitted. The Company will apply the amendments prospectively to business combinations occurring after the initial application. The Company expects the adoption of this standard to change how it evaluates the accounting acquirer in future business combinations involving a VIE, but otherwise have no impact on the consolidated financial statements. In September 2025, the FASB issued ASU No. 2025-06, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software (“ASU 2025-06”). ASU 2025-06 updates the accounting framework for internal-use software development costs to better reflect modern development practices, including agile methodologies. Key changes include replacing the traditional project stage model with a capitalization threshold based on management’s authorization and commitment to fund the project, along with a requirement that completion of the project be probable. ASU 2025-06 also supersedes guidance on website development costs. This guidance is effective for fiscal years beginning after December 15, 2027 and interim periods within those fiscal years. The Company is currently evaluating the impact this standard will have on the consolidated financial statements.
Repurchases Of Common Stock	Repurchases of Class A Common Stock The Company accounts for repurchases of its Class A common stock using the constructive retirement method. Shares repurchased are retired immediately upon repurchase and are returned to the status of authorized but unissued shares. Any excess of the repurchase cost over par value is recorded as a reduction to accumulated deficit. No treasury stock is carried on the condensed consolidated balance sheets. In connection with each repurchase of a share of Class A common stock, a corresponding LLC Unit of Baldwin Holdings held by the Company and a corresponding share of Class B common stock are cancelled, which results in a reduction to noncontrolling interest.
Tax Receivable Agreement	Tax Receivable Agreement Baldwin is a party to the Tax Receivable Agreement with Baldwin Holdings’ LLC Members that provides for the payment by Baldwin to Baldwin Holdings’ LLC Members of 85% of the amount of cash savings, if any, in U.S. federal, state and local income tax or franchise tax that Baldwin actually realizes as a result of (i) any increase in tax basis in Baldwin Holdings’ assets resulting from (a) previous acquisitions by Baldwin of LLC Units from Baldwin Holdings’ LLC Members, (b) the acquisition of LLC Units from Baldwin Holdings’ LLC Members using the net proceeds from any future offering, (c) redemptions or exchanges by Baldwin Holdings’ LLC Members of LLC Units and the corresponding number of shares of Class B common stock for shares of Class A common stock or cash or (d) payments under the Tax Receivable Agreement, and (ii) tax benefits related to imputed interest resulting from payments made under the Tax Receivable Agreement. This payment obligation is an obligation of Baldwin and not of Baldwin Holdings. For purposes of the Tax Receivable Agreement, the cash tax savings in income tax will be computed by comparing the actual income tax liability of Baldwin (calculated with certain assumptions) to the amount of such taxes that Baldwin would have been required to pay had there been no increase to the tax basis of the assets of Baldwin Holdings as a result of the redemptions or exchanges and had Baldwin not entered into the Tax Receivable Agreement. The Company accounts for amounts payable under the Tax Receivable Agreement in accordance with ASC Topic 450, Contingencies (“Topic 450”). Estimating the amount of payments that may be made under the Tax Receivable Agreement is by its nature imprecise, insofar as the calculation of amounts payable depends on a variety of factors. The actual increase in tax basis, as well as the amount and timing of any payments under the Tax Receivable Agreement, will vary depending upon a number of factors, including the timing of redemptions or exchanges, the price of shares of our Class A common stock at the time of the redemption or exchange, the extent to which such redemptions or exchanges are taxable and the amount and timing of our income. Any such changes in these factors or changes in the Company’s determination of the need for a valuation allowance related to the tax benefits acquired under the Tax Receivable Agreement, including changes in the expected realization of tax benefits, which may be informed by, but not solely determined by, valuation allowance assessments, could adjust the Tax Receivable Agreement liabilities recognized on the condensed consolidated balance sheets. The Company accounts for the effects of these increases in tax basis and associated payments under the Tax Receivable Agreement arising from future redemptions or exchanges as follows: •records an increase in deferred tax assets through additional paid-in capital for the estimated income tax effects of the increases in tax basis based on enacted federal and state tax rates at the date of the redemption or exchange; •to the extent it is estimated that the Company will not realize the full benefit represented by the deferred tax asset, based on an analysis that will consider, among other things, our expectation of future earnings, the Company reduces the deferred tax asset with a valuation allowance, also recorded to additional paid-in capital; and •records 85% of the estimated realizable tax benefit as defined in the Tax Receivable Agreement as an increase to the liability due under the Tax Receivable Agreement, with the offset to additional paid-in capital. Subsequent changes to the initial establishment of the increases in deferred tax assets and Tax Receivable Agreement liability between reporting periods will be recognized in the condensed consolidated statements of stockholders’ equity and mezzanine equity as the exchanges represent transactions among stockholders. Subsequent changes in any of our estimates after the date of the redemption or exchange, as well as any interest accrued on the Tax Receivable Agreement between the Company’s annual tax filing date and the Tax Receivable Agreement payment date, are recognized in the condensed consolidated statements of comprehensive income (loss). In the unlikely event of an early termination of the Tax Receivable Agreement, the Company is required to pay to each holder of the Tax Receivable Agreement an early termination payment equal to the discounted present value of all unpaid Tax Receivable Agreement payments.

Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2026

The consolidated financial statements include the accounts of Baldwin and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation.

As the sole manager of Baldwin Holdings, Baldwin operates and controls all the business and affairs of Baldwin Holdings, and has the sole voting interest in, and controls the management of, Baldwin Holdings. Accordingly, Baldwin consolidates Baldwin Holdings in its consolidated financial statements, resulting in a noncontrolling interest related to the membership interests of Baldwin Holdings (the “LLC Units”) held by Baldwin Holdings’ members in the Company’s consolidated financial statements.

The Company has prepared these condensed consolidated financial statements in accordance with Accounting Standards Codification (“ASC”) Topic 810, Consolidation (“Topic 810”). Topic 810 requires that if an enterprise is the primary beneficiary of a variable interest entity, the assets, liabilities, and results of operations of the variable interest entity should be included in the consolidated financial statements of the enterprise. The Company has recognized certain entities as variable interest entities, of which the Company is the primary beneficiary, and has included the accounts of these entities in the consolidated financial statements. Refer to Note 4 for additional information regarding the Company’s variable interest entities.

Topic 810 also requires that the equity of a noncontrolling interest shall be reported on the condensed consolidated balance sheets within total equity of the Company. Certain redeemable noncontrolling interests are reported on the condensed consolidated balance sheets as mezzanine equity. Topic 810 also requires revenues, expenses, gains, losses, net income or loss, and other comprehensive income or loss to be reported in the consolidated financial statements at consolidated amounts, which include amounts attributable to the owners of the parent and the noncontrolling interests.

Use of Estimates

The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosures of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from these estimates. Significant estimates underlying the accompanying condensed consolidated financial statements include the application of guidance for revenue recognition, impairment of intangible assets and goodwill, the valuation of acquired relationships, the valuation of contingent consideration and the Tax Receivable Agreement liabilities.

Recent Accounting Standards

In November 2024, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40)—Disaggregation of Income Statement Expenses (“ASU 2024-03”) to improve the disclosures about a public business entity’s expenses and supply more detailed information about the types of expenses in commonly presented expense captions. These expense captions include purchases of inventory, employee compensation, depreciation, amortization, and depletion in commonly presented expense captions such as cost of sales, selling, general and administrative expense, and research and development. This guidance is effective for annual reporting periods beginning after December 15, 2026 and interim reporting periods beginning after December 15, 2027. The Company expects the adoption of this standard to expand its expense disclosures, but otherwise have no impact on the consolidated financial statements.

In May 2025, the FASB issued ASU No. 2025-03, Business Combinations (Topic 805) and Consolidation (Topic 810): Determining the Accounting Acquirer in the Acquisition of a Variable Interest Entity (“ASU 2025-03”). This ASU amends the guidance for identifying the accounting acquirer in a business combination effected primarily by exchanging equity interests when the legal acquiree is a variable interest entity (“VIE”) that meets the definition of a business. Under the new guidance, entities must consider the factors in ASC 805-10-55-12 through 55-15—such as relative voting rights, composition of the governing body and management, and size of the combining entities—regardless of whether the legal acquiree is a VIE. This change is intended to improve consistency and comparability in financial reporting for economically similar transactions. The guidance is effective for annual reporting periods beginning after December 15, 2026, and interim periods within those annual periods, with early adoption permitted. The Company will apply the amendments prospectively to business combinations occurring after the initial application. The Company expects the adoption of this standard to change how it evaluates the accounting acquirer in future business combinations involving a VIE, but otherwise have no impact on the consolidated financial statements.

In September 2025, the FASB issued ASU No. 2025-06, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software (“ASU 2025-06”). ASU 2025-06 updates the accounting framework for internal-use software development costs to better reflect modern development practices, including agile methodologies. Key changes include replacing the traditional project stage model with a capitalization threshold based on management’s authorization and commitment to fund the project, along with a requirement that completion of the project be probable. ASU 2025-06 also supersedes guidance on website development costs. This guidance is effective for fiscal years beginning after December 15, 2027 and interim periods within those fiscal years. The Company is currently evaluating the impact this standard will have on the consolidated financial statements.

Repurchases Of Common Stock

Repurchases of Class A Common Stock

The Company accounts for repurchases of its Class A common stock using the constructive retirement method. Shares repurchased are retired immediately upon repurchase and are returned to the status of authorized but unissued shares. Any excess of the repurchase cost over par value is recorded as a reduction to accumulated deficit. No treasury stock is carried on the condensed consolidated balance sheets. In connection with each repurchase of a share of Class A common stock, a corresponding LLC Unit of Baldwin Holdings held by the Company and a corresponding share of Class B common stock are cancelled, which results in a reduction to noncontrolling interest.

Tax Receivable Agreement

Baldwin is a party to the Tax Receivable Agreement with Baldwin Holdings’ LLC Members that provides for the payment by Baldwin to Baldwin Holdings’ LLC Members of 85% of the amount of cash savings, if any, in U.S. federal, state and local income tax or franchise tax that Baldwin actually realizes as a result of (i) any increase in tax basis in Baldwin Holdings’ assets resulting from (a) previous acquisitions by Baldwin of LLC Units from Baldwin Holdings’ LLC Members, (b) the acquisition of LLC Units from Baldwin Holdings’ LLC Members using the net proceeds from any future offering, (c) redemptions or exchanges by Baldwin Holdings’ LLC Members of LLC Units and the corresponding number of shares of Class B common stock for shares of Class A common stock or cash or (d) payments under the Tax Receivable Agreement, and (ii) tax benefits related to imputed interest resulting from payments made under the Tax Receivable Agreement.

This payment obligation is an obligation of Baldwin and not of Baldwin Holdings. For purposes of the Tax Receivable Agreement, the cash tax savings in income tax will be computed by comparing the actual income tax liability of Baldwin (calculated with certain assumptions) to the amount of such taxes that Baldwin would have been required to pay had there been no increase to the tax basis of the assets of Baldwin Holdings as a result of the redemptions or exchanges and had Baldwin not entered into the Tax Receivable Agreement.

The Company accounts for amounts payable under the Tax Receivable Agreement in accordance with ASC Topic 450, Contingencies (“Topic 450”). Estimating the amount of payments that may be made under the Tax Receivable Agreement is by its nature imprecise, insofar as the calculation of amounts payable depends on a variety of factors. The actual increase in tax basis, as well as the amount and timing of any payments under the Tax Receivable Agreement, will vary depending upon a number of factors, including the timing of redemptions or exchanges, the price of shares of our Class A common stock at the time of the redemption or exchange, the extent to which such redemptions or exchanges are taxable and the amount and timing of our income. Any such changes in these factors or changes in the Company’s determination of the need for a valuation allowance related to the tax benefits acquired under the Tax Receivable Agreement, including changes in the expected realization of tax benefits, which may be informed by, but not solely determined by, valuation allowance assessments, could adjust the Tax Receivable Agreement liabilities recognized on the condensed consolidated balance sheets.

The Company accounts for the effects of these increases in tax basis and associated payments under the Tax Receivable Agreement arising from future redemptions or exchanges as follows:

•records an increase in deferred tax assets through additional paid-in capital for the estimated income tax effects of the increases in tax basis based on enacted federal and state tax rates at the date of the redemption or exchange;

•to the extent it is estimated that the Company will not realize the full benefit represented by the deferred tax asset, based on an analysis that will consider, among other things, our expectation of future earnings, the Company reduces the deferred tax asset with a valuation allowance, also recorded to additional paid-in capital; and

•records 85% of the estimated realizable tax benefit as defined in the Tax Receivable Agreement as an increase to the liability due under the Tax Receivable Agreement, with the offset to additional paid-in capital.

Subsequent changes to the initial establishment of the increases in deferred tax assets and Tax Receivable Agreement liability between reporting periods will be recognized in the condensed consolidated statements of stockholders’ equity and mezzanine equity as the exchanges represent transactions among stockholders. Subsequent changes in any of our estimates after the date of the redemption or exchange, as well as any interest accrued on the Tax Receivable Agreement between the Company’s annual tax filing date and the Tax Receivable Agreement payment date, are recognized in the condensed consolidated statements of comprehensive income (loss). In the unlikely event of an early termination of the Tax Receivable Agreement, the Company is required to pay to each holder of the Tax Receivable Agreement an early termination payment equal to the discounted present value of all unpaid Tax Receivable Agreement payments.