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10-K primary document
GREE · Annual Report (Form 10-K) · Filed March 31, 2026

Greenidge Generation Holdings Inc10-K exhibit

gree-20251231xex211listofs.htm
Document

Exhibit 21.1
List of Subsidiaries
Greenidge Generation Holdings Inc.’s subsidiaries are listed below.
Name of Subsidiary
Jurisdiction of Formation
Greenidge Generation LLC
New York
Lockwood Hills LLC
New York
Greenidge Solar LLC
Delaware
Greenidge Pipeline LLC
Delaware
Greenidge Pipeline Properties Corporation
New York
Greenidge Markets and Trading LLC
Delaware
Greenidge Generation Blocker Inc.
Delaware
Greenidge Generation Holdings LLC
Delaware
Greenidge Secured Lending LLC
Delaware
Support.com, Inc.
Delaware
Greenidge Texas LLC
Delaware
GNY Collateral Holding LLC
Delaware
GNY Collateral LLC
Delaware
Greenidge British Columbia ULC
Canada
GTX Gen 1 LLC
Delaware
GTX Gen 1 Collateral Holding LLC
Delaware
GTX Gen 1 Collateral LLC
Delaware
GTX Dev 1 LLC
Delaware
Greenidge South Carolina LLC
Delaware
GSC Collateral Holding LLC
Delaware
GSC Collateral LLC
Delaware
GSC RE LLC
Delaware
GSC DemoCo LLC
Delaware
300 Jones Road LLC
Delaware
GGHI Inactive Holdings LLC
Delaware
Greenidge Mississippi LLC
Mississippi
Greenidge North Dakota, LLC
Delaware



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