CONCENTRATIONS

3 Months Ended

Mar. 31, 2026

Risks and Uncertainties [Abstract]

CONCENTRATIONS

CONCENTRATIONS

The Company has a single hosting customer that accounted for 2% and 30% of the Company’s revenue during the three months ended March 31, 2026 and 2025, respectively. The single hosting customer has the option to terminate the hosting agreement with 6 months’ notice.

For the Company’s self-mining operations, the Company considers its mining pool operators to be its customers. The Company has historically used a limited number of pool operators that have operated under contracts with a one-day term, which allows Greenidge the option to change pool operators at any time. Revenue from the Company’s pool operator customers accounted for approximately 2% and 7% of total revenue for the three months ended March 31, 2026 and 22% and 0% of total revenue for the three months ended March 31, 2025.

The Company has one major power customer, NYISO, that accounted for 90% and 48% of its revenue for the three months ended March 31, 2026 and 2025, respectively.

The Company has one natural gas vendor that accounted for approximately 60% and 56% of cost of revenue for the three months ended March 31, 2026 and 2025, respectively.