Fair Value Measurements
The Company believes that the carrying amounts of its financial instruments, including cash and cash equivalents, trade accounts receivable and accounts payable, consist primarily of instruments without extended maturities, which approximate fair value primarily due to their short-term maturities and low risk of counterparty default. The Company considers all highly liquid investments purchased with a maturity of 90 days or less on the date of purchase to be cash equivalents. Cash equivalents as of December 31, 2025 and 2024 consisted of overnight repurchase agreements in which cash from the Company's main operating checking account is invested overnight in highly liquid, short-term investments and certain investments in money market funds sponsored by a large financial institution. For the years ended December 31, 2025, 2024 and 2023, the Company recognized interest income in the aggregate of approximately $0.8 million, $2.2 million and $1.2 million, respectively. The Company has not experienced any losses in its cash and cash equivalents and management believes the Company is not exposed to significant credit risk with respect to such accounts.
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| | | Fair Value at Reporting Date Using | |
| (in thousands) | December 31, 2025 | | Level 1 | | Level 2 | | Level 3 | |
| Cash equivalents: | | | | | | | | |
| Overnight repurchase agreements | $ | 10,245 | | | $ | 10,245 | | | $ | — | | | $ | — | | |
| | | | | | | | |
| | | | | | | | |
| Total | $ | 10,245 | | | $ | 10,245 | | | $ | — | | | $ | — | | |
| | | | | | | | |
| December 31, 2024 | | Level 1 | | Level 2 | | Level 3 | |
| Cash equivalents: | | | | | | | | |
| Overnight repurchase agreements | $ | 38,962 | | | $ | 38,962 | | | | | | |
| | | | | | | | |
| | | | | | | | |
| Money market fund | 4,000 | | | 4,000 | | | — | | | — | | |
| | | | | | | | |
| Total | $ | 42,962 | | | $ | 42,962 | | | $ | — | | | $ | — | | |
Wintrust Revolving Loans
The Company also believes that the carrying value of the Wintrust Revolving Loans approximates its respective fair value due to the variable rate on such debt. As of December 31, 2025, the Company determined that the fair value of the Wintrust Revolving Loans was $10.0 million. Such fair value was determined using discounted estimated future cash flows using level 3 inputs.
Earnout Payments
As a part of the total consideration for the Company's July 2023 acquisition of ACME, the former owner of ACME is eligible to receive up to an aggregate of $2.5 million in cash, consisting of two individual tranches of $0.5 million and $2.0 million pursuant to the terms of the purchase agreement, if the gross profit of ACME equals or exceeds (i) $2.0 million in the 12-month period beginning from the closing date of the transaction (the “First ACME Earnout Period”) or (ii) $2.5 million in the 12-month period beginning on the first anniversary of the closing date of the transaction (the “Second ACME Earnout Period” and together with the First ACME Earnout Period, the “ACME Earnout Payments”). The Company initially recognized $1.5 million in contingent consideration as of the closing date of the transaction. The fair value of contingent ACME Earnout Payments is based on generating growth rates on the projected gross margins of ACME and calculating the associated contingent payments based on achieving the earnout targets, which are reassessed each reporting period. In September 2024 and October 2025, the Company made payments of $0.5 million and $2.0 million, respectively, to the former owner of ACME related to the First and Second ACME Earnout Periods.
As a part of the total consideration for Company's November 2023 acquisition of Industrial Air, the former owner of Industrial Air is eligible to receive up to an aggregate of $6.5 million in cash, consisting of two individual tranches of $3.0 million and $3.5 million pursuant to the terms of the purchase agreement, if the gross profit of Industrial Air equals or exceeds (i) $7.6 million in the 12-month period beginning on the closing date of the transaction (the “First IA Earnout Period”) or (ii) $8.8 million in the 12-month period beginning on the first anniversary of the closing date of the transaction (the “Second IA Earnout Period” and together with the First IA Earnout Period, the “IA Earnout Payments”). The Company initially recognized $3.2 million in contingent consideration as of the closing date of the transaction. The fair value of contingent IA Earnout Payments is based on generating growth rates on the projected gross margins of Industrial Air and calculating the associated contingent payments based on achieving the earnout targets, which are reassessed each reporting period. In February 2025 and February 2026, the Company made payments in the amount of $3.0 million and $3.5 million, respectively, to the former owner of Industrial Air related to the First and Second Industrial Air Earnout Periods.
As a part of the total consideration for the Kent Island Transaction, the Company recognized $4.4 million in contingent consideration on the Kent Island Effective Date. The fair value of contingent Kent Island Earnout Payments is based on generating growth rates on the projected gross margins of Kent Island and calculating the associated contingent payments based on achieving the earnout targets, which are reassessed each reporting period. The Company determined the initial fair value of the Kent Island Earnout Payments based on the Monte Carlo Simulation method, which represented a Level 3 measurement. As of the Kent Island Effective Date, the Kent Island Earnout Payments associated with the Kent Island Transaction were valued utilizing a discount rate of 14.9%. The discount rate was calculated using the build-up method with a risk-free rate commensurate with the term of the Kent Island Earnout Payments based on the U.S. Treasury Constant Maturity Yield and certain metric risk premiums determined with reference to a long-term risk-free rate, a weighted average cost of capital and certain adjustments for operational leverage. In January 2026, the Company made a payment in the amount of $2.5 million to the former owner of Kent Island related to the First Kent Island Earnout Period.
As a part of the total consideration for the Consolidated Mechanical Transaction, the Company recognized $0.8 million in contingent consideration on the Consolidated Mechanical Effective Date. The fair value of contingent Consolidated Mechanical Earnout Payments is based on generating growth rates on the projected gross margins of Consolidated Mechanical and calculating the associated contingent payments based on achieving the earnout targets, which are reassessed each reporting period. The Company determined the initial fair value of the Consolidated Mechanical Earnout Payments based on the Monte Carlo Simulation method, which represented a Level 3 measurement. As of the Consolidated Mechanical Effective Date, the Consolidated Mechanical Earnout Payments associated with the Consolidated Mechanical Transaction were valued utilizing a discount rate of 10.4%. The discount rate was calculated using the build-up method with a risk-free rate commensurate with the term of the Consolidated Mechanical Earnout Payments based on the U.S. Treasury Constant Maturity Yield and certain metric risk premiums determined with reference to a long-term risk-free rate, a weighted average cost of capital and certain adjustments for operational leverage.
Based on the Company’s ongoing assessment of the fair value of contingent earnout liabilities, the Company recorded a net increase in the estimated fair value of such liabilities of $1.8 million, $3.8 million and $0.7 million for the years ended December 31, 2025, 2024 and 2023, respectively, which was presented in the acquisition-related retention expense and contingent consideration in the Company's consolidated statements of operations. The Company determined the fair value of the earnout payments by utilizing the Monte Carlo Simulation method, which represents a Level 3 measurement.
The following table presents the carrying values of the Company's contingent earnout payment obligations included in the accompanying consolidated balance sheets, which approximated fair value at December 31, 2025 and 2024.
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| | | Fair Value at Reporting Date Using | |
| (in thousands) | December 31, 2025 | | Level 1 | | Level 2 | | Level 3 | |
| Accrued expenses and other current liabilities: | | | | | | | | |
| Second IA Earnout Period | $ | 3,500 | | | $ | — | | | $ | — | | | $ | 3,500 | | |
| First Kent Island Earnout Period | 2,500 | | | — | | | — | | | 2,500 | | |
| First Consolidated Mechanical Earnout Period | 954 | | | — | | | — | | | 954 | | |
| Other long-term liabilities: | | | | | | | | |
| Second Kent Island Earnout Period | 2,372 | | | — | | | — | | | 2,372 | | |
| Second Consolidated Mechanical Earnout Period | 636 | | | — | | | — | | | 636 | | |
| Total | $ | 9,962 | | | $ | — | | | $ | — | | | $ | 9,962 | | |
| | | | | | | | |
| | | Fair Value at Reporting Date Using | |
| December 31, 2024 | | Level 1 | | Level 2 | | Level 3 | |
| Accrued expenses and other current liabilities: | | | | | | | | |
First IA Earnout Period(1) | $ | 3,000 | | | $ | — | | | $ | — | | | $ | 3,000 | | |
| First Kent Island Earnout Period | 2,297 | | | — | | | — | | | 2,297 | | |
| First Consolidated Mechanical Earnout Period | 402 | | | — | | | — | | | 402 | | |
Second ACME Earnout Period(2) | 1,713 | | | — | | | — | | | 1,713 | | |
| Other long-term liabilities: | | | | | | | | |
| Second IA Earnout Period | 3,222 | | | — | | | — | | | 3,222 | | |
| Second Kent Island Earnout Period | 2,201 | | | — | | | — | | | 2,201 | | |
| Second Consolidated Mechanical Earnout Period | 355 | | | — | | | — | | | 355 | | |
| Total | $ | 13,190 | | | $ | — | | | $ | — | | | $ | 13,190 | | |
(1) In February 2025, the Company made a $3.0 million payment to the former owner of Industrial Air related to the First IA Earnout Period.
(2) In October 2025, the Company made a $2.0 million payment to the former owner of ACME related to the Second ACME Earnout Period.
Interest Rate Swap
The fair value of the interest rate swap is determined using widely accepted valuation techniques and reflects the contractual terms of the interest rate swap including the period to maturity, and while there are no quoted prices in active markets, it uses observable market-based inputs, including interest rate curves and implied volatilities. The fair value analysis also considers a credit valuation adjustment to reflect nonperformance risk of both the Company and the single counterparty. The fair value of the interest rate contract has been determined using the market standard methodology of netting the discounted future fixed cash receipts (or payments) and the discounted expected variable cash payments (or receipts). The variable cash payments (or receipts) are based on an expectation of future interest rates (forward curves) derived from observable market interest rate curves. The interest rate swap is classified as a Level 2 item within the fair value hierarchy. As of December 31, 2025 and 2024, the Company determined that the fair value of the interest rate swap was less than $0.1 million and approximately $0.2 million, respectively, and is recognized in other assets on the Company's consolidated balance sheets. For the years ended December 31, 2025, 2024 and 2023, the Company recognized a loss of $0.2 million, a gain of less than $0.1 million and a loss of $0.1 million, respectively, on its consolidated statements of operations associated with the change in fair value of the interest rate swap arrangement.