Exhibit 99.3

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

On April 7, 2021, pursuant to the terms set forth in the previously announced Agreement and Plan of Merger, dated March 1, 2021, Columbus McKinnon Corporation (‘the Company” or “CMCO”), completed its acquisition (“Acquisition”) of Precision Blocker, Inc, and its subsidiaries, including its indirect wholly-owned operating subsidiary Dorner Mfg. Corp. (collectively “Dorner”). The unaudited pro forma condensed combined balance sheet as of December 31, 2020 and the condensed combined statements of operations for the nine months ended December 31, 2020 and for the twelve months ended March 31, 2020, illustrate the effects of the Acquisition (the “Transaction” or the “Transaction Accounting Adjustments”), as well as contemporaneous financing activities and certain other related adjustments described below (the “Other Transaction Accounting Adjustments” and, together with the Transaction, the “Transactions”).

The Other Transaction Accounting Adjustments include but are not limited to the Company’s borrowing of $650 million under a new first lien term loan facility (the “New Term Loan”) to fund the Acquisition, the replacement of the prior revolving credit facility with an aggregate principal amount of $100 million (the “Existing Revolver”) with a new revolving credit facility with an aggregate principal amount of $100 million (the “New Revolver”), and the repayment of the remaining outstanding balance of the Company’s existing term loan (the “Existing Term Loan”). In addition, the Company plans to raise $150 million through the issuance of shares of the Company’s common stock, par value $0.01 per share (the “Equity Issuance”), with the proceeds of such Equity Issuance expected to be used to repay a portion of the New Term Loan. The completion of the Equity Issuance is subject to market and other conditions, and there can be no assurance as to whether or when the Equity Issuance may be completed, or as to the actual size or terms of the Equity Issuance. For more information about the Equity Issuance, refer to Note 6(e).

The Company’s fiscal year ends on March 31^st, while Dorner’s fiscal year ends on September 30^th. As the Company’s fiscal year end differs by more than one quarter from Dorner’s fiscal year end, the unaudited pro forma condensed combined statement of operations presented herein have been presented using the different fiscal periods as discussed below. The unaudited pro forma condensed combined statement of operations for the twelve months ended March 31, 2020 presented herein reflects a combination of the Company’s results of operations for its fiscal year ended March 31, 2020 and Dorner’s results of operations from April 1, 2019 through March 31, 2020, which were calculated using its fiscal year ended September 30, 2019, less the six months ended March 31, 2019, plus the six months ended March 31, 2020. The unaudited pro forma condensed combined statement of operations for the nine months ended December 31, 2020 presented herein reflects a combination of the Company’s results of operations for the nine months ended December 31, 2020 and Dorner’s results of operations from April 1, 2020 through December 31, 2020, calculated using its fiscal year ended September 30, 2020, less the six months ended March 31, 2020, plus the three months ended December 31, 2020. The unaudited pro forma condensed combined balance sheet as of December 31, 2020 presented herein reflects a combination of the Company’s financial position as of December 31, 2020 and Dorner’s financial position as of December 31, 2020.

The unaudited pro forma condensed combined balance sheet data as of December 31, 2020 gives effect to the Transactions as if they occurred on December 31, 2020. The unaudited pro forma condensed consolidated statements of operations data for the nine months ended December 31, 2020 and for the twelve months ended March 31, 2020, have been prepared as if the Transactions had occurred on April 1, 2019.

The unaudited pro forma condensed combined financial information should be read in conjunction with the accompanying notes, the Company’s audited annual consolidated financial statements included in its Annual Report on Form 10-K for the fiscal year ended March 31, 2020, filed with the Securities and Exchange Commission (“the SEC”) on May 27, 2020, and the Company’s unaudited quarterly consolidated financial statements included in its Quarterly Report on Form 10-Q for the quarter ended December 31, 2020, filed with the SEC on January 28, 2021.

The adjustments to the unaudited pro forma condensed combined financial information described herein are based on available information and assumptions management believes are reasonable. These adjustments are estimates, subject to risks and uncertainties that could cause the unaudited pro forma condensed combined financial statements to differ materially from actual results.

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The unaudited pro forma condensed combined financial information does not reflect any cost savings, operating synergies or revenue enhancements that the combined company may achieve as a result of the Acquisition, nor the costs that may be incurred to achieve such benefits.

As such, the unaudited pro forma condensed combined financial information is shown purely for illustrative purposes and is not indicative of the combined financial position or results of operations that would have been realized had the Transactions occurred as of the dates indicated above. The unaudited pro forma condensed combined financial information should not be considered representative of future financial conditions or results of operations.

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Unaudited pro forma condensed combined balance sheet as of

December 31, 2020

(in thousands)

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Unaudited pro forma condensed combined statement of operations for the twelve months

ended March 31, 2020

(dollars and shares in thousands, except per share amounts)

4

Unaudited pro forma condensed combined statement of operations for the nine

months ended December 31, 2020

(dollars and shares in thousands, except per share amounts)

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Notes to the Unaudited Pro Forma Condensed Combined Financial Information

Note 1 - Basis of Presentation

The historical financial information has been adjusted to give pro forma effect to the Acquisition, as well as the related debt issuances by the Company, which were used to fund the Acquisition and repay previously existing debt of both the Company and Dorner, and the expected Equity Issuance by the Company, the proceeds of which are expected to be used to repay a portion of the New Term Loan. The unaudited pro forma condensed combined financial information has been prepared in accordance with Regulation S-X Article 11, Pro Forma Financial Information, as amended by the final rule, Amendments to Financial Disclosures about Acquired and Disposed Businesses, as adopted by the SEC on May 20, 2020 (“Article 11”).

The unaudited pro forma condensed combined financial information has been prepared using the acquisition method of accounting under the provisions of Financial Accounting Standards Board (“FASB”) Accounting Standard Codification (“ASC”) Topic 805, Business Combinations (“ASC 805”). The purchase price for the Acquisition will be allocated to the assets acquired and liabilities assumed based upon their estimated fair values as of the acquisition date, and any excess value of the consideration transferred over the net assets will be recognized as goodwill. The Company has made a preliminary allocation of the purchase price for the Acquisition to the assets acquired and liabilities assumed as of the acquisition date based on the Company’s preliminary valuation of the fair value of tangible and intangible assets acquired and liabilities assumed using information currently available. Differences between these preliminary estimates and the final acquisition accounting could occur and these differences could have a material impact on the accompanying unaudited pro forma condensed combined financial information and the Company’s future results of operations and financial position.

Note 2 - Presentation of Dorner – Reclassification Adjustments

Historical Dorner financial information included within the unaudited pro forma condensed combined financial information has been reclassified to conform the presentation to that of the Company as indicated in the table below:

Balance sheet as of December 31, 2020

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Statement of Operations for the Twelve Months Ended March 31, 2020

Statement of Operations for the Nine Months Ended December 31, 2020

Note 3 – Conforming Accounting Policies

The accounting policies used in the preparation of the unaudited pro forma condensed combined financial information are those set out in CMCO’s consolidated financial statements. Based on the procedures performed to date, the accounting policies of Dorner are similar in all material respects to CMCO’s accounting policies, with the exception of Accounting Standards Update (“ASU”) No. 2016-02, Leases (Topic 842) (“Topic 842”) and ASU 2014-09, Revenue from Contracts with Customers (Topic 606) (“Topic 606”), which Dorner had not yet been

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required to adopt as a private company, as well as accounting for reserves on accounts receivable and warranties, accounting for slow-moving inventory, and accounting for inventory capitalization. The impacts have been described in Note 5 to the unaudited pro forma condensed combined financial information. There were no material differences to historical Dorner revenue recognition upon adoption of Topic 606.

CMCO is not aware of any other material differences between the accounting policies of the two companies that would continue to exist subsequent to the application of acquisition accounting. Following the consummation of the Acquisition, CMCO has begun to conduct, but has not yet completed, a more detailed review of Dorner’s accounting policies in an effort to determine if differences in accounting policies require further reclassification of Dorner’s results of operations or reclassification of assets or liabilities to conform to CMCO’s accounting policies and classifications. As a result, CMCO may identify additional differences between the accounting policies of the two companies that, when conformed, could have a material impact on the unaudited pro forma condensed combined financial information.

Note 4 - Estimated Purchase Consideration and Preliminary Purchase Price Allocation

The estimated consideration transferred in the Acquisition is $486 million of cash, which includes the extinguishment of existing Dorner debt of $61.8 million and the payment of $8.9 million of Dorner transaction expenses at transaction close.

The table below represents an estimated preliminary purchase price allocation based on estimates, assumptions, valuations, and other analyses based on Dorner’s balance sheet as of December 31, 2020. The total preliminary estimated purchase consideration is allocated to the tangible and intangible assets and liabilities of Dorner based on their estimated fair values as if the Acquisition had occurred on December 31, 2020, which is the assumed Acquisition date for purposes of the unaudited pro forma condensed combined balance sheet. Other than the items specifically noted below, Dorner’s assets and liabilities are presented at their respective carrying amounts (as adjusted for accounting policy alignment) and should be treated as preliminary values. Based on the information available as of the time of the preparation of this unaudited pro forma condensed combined financial information, CMCO believes that these carrying values approximate fair values. CMCO has not completed the final allocation of the purchase price for the Acquisition to Dorner’s assets and liabilities; such final allocation will be completed within one year. Therefore, the acquired assets and liabilities are reflected at their preliminarily estimated fair values with the excess consideration recorded as goodwill. The final valuation could result in a material difference from the amounts shown.

The following table summarizes the preliminary purchase price as if the Acquisition occurred on December 31, 2020

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Note 5 - Transaction Accounting Adjustments

Pro Forma Transaction Accounting Adjustments to the unaudited pro forma condensed combined balance sheet

5(a) – Reflects adjustments to cash and cash equivalents to record the acquisition of Dorner and the payment of transaction costs in connection with the Acquisition.

5(b) – Trade accounts receivables, less allowance for doubtful accounts was reduced by $0.18 million in order to align Dorner’s historical accounting policy with that of CMCO.

5(c) – Reflects the adjustments to inventories to record the accounting policy alignments for slow-moving inventory and inventory capitalization. Also reflects the step-up of acquired Dorner inventory (as adjusted for the accounting policy changes) to fair value.

5(d) – Reflects the adjustments to property, plant, and equipment, net to record the acquisition of finance leases and the fair value step-up of acquired Dorner fixed assets.

The following table displays the expected useful lives of material property, plant, and equipment acquired.

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5(e) - Reflects adjustments to remove Dorner’s historical goodwill, and record estimated goodwill resulting from the Acquisition.

5(f) - Reflects adjustments to record the preliminary estimated fair value of the identifiable intangible assets acquired, net of historical book value of Dorner’s intangibles prior to the Acquisition.

5(g) - Other assets increased by $0.51 million to record Dorner’s right of use assets for operating leases upon adoption of Topic 842.

5(h) – Reflects adjustments to Accrued liabilities to record the acquisition of Dorner’s operating leases and the alignment of Dorner’s historical accounting policy for accounting for warranty reserves with that of CMCO.

5(i) – Current portion of long-term debt decreased by $0.9 million to record the extinguishment of Dorner’s historical current portion of debt.

5(j) – Current portion financing lease liability decreased by $0.075 million from the acquisition of finance leases.

5(k) - Term loan and revolving credit facility decreased by $61 million as a result of CMCO’s extinguishment of Dorner’s existing debt on the Acquisition close date.

5(l) - Financing lease liability increased by $2.9 million from the acquisition of acquired finance leases.

5(m) – Reflects adjustments to record the effect of Dorner’s adoption of Topic 842, the recognition of deferred tax liabilities in connection of the Acquisition, jurisdictional netting of deferred tax assets with deferred tax liabilities, and the write-off of deferred taxes associated with Dorner’s historical goodwill.

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5(n) - The following table presents the pro forma adjustments to shareholders’ equity:

Pro Forma Transaction Adjustments to the unaudited pro forma condensed combined statements of operations

5(o) - The following table presents the pro forma adjustments to cost of products sold:

5(p) - The following table presents the pro forma adjustments to general and administrative expenses:

5(q) - The following table presents the pro forma adjustments to amortization of intangibles:

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5(r) - Reflects the income tax effect of the Transaction Accounting Adjustments calculated using a weighted average statutory rate of (25%).

Note 6 - Other Transaction Accounting Adjustments

Pro Forma Other Transaction Accounting Adjustments to the unaudited pro forma condensed combined balance sheet

6(a) – The following table presents the pro forma Other Transaction Accounting Adjustments related to cash, which include (1) $650 million of cash received from the New Term Loan, $5 million of final original issuance discount, and $150 million received from the Equity Issuance (2) the repayment of the Existing Term Loan, (3) repayment of a portion of the New Term Loan, (4) the payment of issuance costs related to the New Term Loan and the New Revolver, (5) the payment of transaction bonuses, and (6) payment of the Equity Issuance costs.

6(b) – The following table reflects the change in Other assets as a result of incremental deferred financing fees for the New Revolver and the write-off of fees related to the Existing Revolver.

6(c) – Reflects the payoff of the $4.5 million current portion of the Existing Term Loan.

6(d) - Reflects adjustments to fund the Acquisition and repay the Existing Term Loan. The interest rate on the New Term Loan is determined by the Eurodollar rate plus an applicable margin. The change in the Company’s borrowings are as follows:

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6(e) – The following table presents the pro forma adjustments to shareholders’ equity, which include (1) the expected Equity Issuance of 3,301,147 shares of the Company’s common stock, with an assumed share price of $45.44, net of $6 million of issuance costs, (2) payment of employee bonuses in connection with the Transaction, and (3) the write-off of deferred financing costs associated with the repayment of the Existing Term Loan, Existing Revolver, and the partial repayment of the New Term Loan.

A sensitivity analysis has been performed on the number of shares of the Company’s common stock expected to be issued in the Equity Issuance. The analysis gives effect to a hypothetical $1.00 change in the share price of the Company’s common stock in the Equity Issuance. A $1.00 change in the share price of the Company’s common stock in the Equity Issuance would cause a corresponding increase or decrease to the number of shares issued of approximately 0.07 million.

Pro Forma Other Transaction Adjustments to the unaudited pro forma condensed combined statements of operations

6(f) – Reflects the issuance of restricted stock units to key Dorner employees and payment of employee transaction bonuses in connection with the Acquisition.

6(g) - Reflects the elimination of the Company’s interest expense and amortization of deferred financing costs related to the repaid Existing Term Loan and records the interest expense and amortization of debt issuance costs on the New Term Loan in connection with the Acquisition. Interest rates are determined based on either a eurocurrency rate or base rate plus an applicable margin. An interest rate of 3.70% was assumed below.

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A sensitivity analysis has been performed on interest expense to assess the effect a hypothetical 0.125% change in the interest rate related to the New Term Loan, which reflects a gross issuance of $650 million, debt issuance costs of $4.9 million, $5 million of final original issuance discount, repayment of the Existing Term Loan of $256 million, as well as immediate repayment of $150 million on the New Term Loan. A 0.125% change in interest rates would cause a corresponding increase or decrease to interest expense of approximately $0.62 million for the twelve months ended March 31, 2020 and $0.47 million for the nine months ended December 31, 2020.

6(h) – Reflects a loss from the extinguishment of the Existing Term Loan and New Term Loan, as well as a write-off of Existing Revolver deferred financing fees.

6(i) – Reflects the income tax effect of the Other Transaction Adjustments calculated using a weighted average statutory rate of (25%).

6(j) – Reflects the 3,301,147 shares of common stock of the Company expected to be issued in connection with the Equity Issuance and the vesting of the restricted stock units treated as post-Acquisition compensation expense.

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A sensitivity analysis has been performed on EPS to assess the effect a hypothetical $1.00 change in the share price of the Company’s common stock in the Equity Issuance. A $1.00 increase or decrease in the share price of the Company’s common stock in the Equity Issuance would cause an insignificant change to pro forma Basic EPS and Diluted EPS for the twelve months ended March 31, 2020 and for the nine months ended December 31, 2020.

Note 7 – Nonrecurring adjustments

The following table reflects the adjustments related to non-recurring items within the pro forma condensed combined financial information. These non-recurring items were assumed to have occurred on April 1, 2019, the beginning of the twelve-month period ended March 31, 2020.

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