Form: 10-K

Annual report [Section 13 and 15(d), not S-K Item 405]

March 12, 2026

Exhibit 21.1

List of Subsidiaries of TerrAscend Corp.

Subsidiary

State or Other Jurisdiction of Incorporation or Organization

TerrAscend Canada Inc.

Ontario

2627685 Ontario Inc.

Ontario

2671983 Ontario Inc.

Ontario

2765533 Ontario Inc.

Ontario

2668420 Ontario Inc.

Ontario

2151924 Alberta Ltd.

Alberta

TerrAscend Growth Corp.

Ontario

Cookies Retail Canada Corp.

Canada

BTHHM Berkeley, LLC

California

V Products, LLC

California

ABI SF LLC

California

RHMT, LLC

California

Deep Thought LLC

California

Howard Street Partners, LLC

California

TerrAscend USA, Inc.

Delaware

TerrAscend America, Inc.

Delaware

Arise Bioscience, Inc.

Delaware

WDB Holding PA, Inc.

Delaware

WDB Holding CA, Inc.

Delaware

WDB Holding MI, Inc.

Delaware

WDB Holding OH, Inc.

Delaware

Well and Good, Inc.

Delaware

HMS Hagerstown, LLC

Delaware

IHC Management LLC

Delaware

PA Store 299 LLC

Delaware

TerrAscend USA Services, LLC

Delaware

Well and Good 2, Inc.

Delaware

WDB Holding GA Inc.

Georgia

Aspire Medical Partners, LLC

Georgia

TER Holding MD, Inc.

Maryland

Derby1, LLC

Maryland

Hempaid, LLC

Maryland

Blue Ridge Wellness, LLC

Maryland

Herbiculture, Inc.

Maryland

WDB Holding MD, Inc.

Maryland

HMS Health, LLC

Maryland

HMS Processing LLC

Maryland

Moose Curve Holdings, LLC

Maryland

Allegany Medical Marijuana Dispensary LLC

Maryland

Allegany CBD Wellness Shop Incorporated

Maryland

AEY Capital LLC

Michigan

3 State Park LLC

Michigan

Pure Releaf SP Drive, LLC

Michigan

KISA Enterprises MI Inc.

Michigan

RKD Ventures, LLC

Michigan

AEY Holdings, LLC

Michigan

Stadium Ventures Inc.

Michigan

Thrive Enterprises LLC

Michigan

Spartan Partners Corporation

Michigan

Spartan Partners Holdings, LLC

Michigan

Spartan Partners Services LLC

Michigan


Subsidiary

State or Other Jurisdiction of Incorporation or Organization

Spartan Partners Properties LLC

Michigan

Spartan Partners Licensing LLC

Michigan

Mayde US LLC

Michigan

TerrAscend NJ LLC

New Jersey

TER NJ Dispensing 1, LLC

New Jersey

Apothecarium Dispensing LLC

New Jersey

Ohio Dispensing 1, LLC

Ohio

Ilera Healthcare LLC

Pennsylvania

Ilera Dispensing LLC

Pennsylvania

Ilera Security LLC

Pennsylvania

235 Main Street Mercersburg LLC

Pennsylvania

Ilera InvestCo I, LLC

Pennsylvania

Ilera Dispensing 2 LLC

Pennsylvania

Ilera Dispensing 3 LLC

Pennsylvania

GuadCo LLC

Pennsylvania

KCR Holdings LLC

Pennsylvania

TER Dispensing PA 1, LLC

Pennsylvania