Exhibit 21.01

UFP Technologies, Inc. wholly owns the following companies:

1. Advant Medical Limited, a private limited company incorporated under the laws of Ireland, its wholly-owned subsidiary:

a. Munlu Leighis Advant Teoranta, a private limited company incorporated under the laws of Ireland

2. Advant Costa Rica Limitada, incorporated under the laws of Costa Rica

3. Advant Medical Inc., a Delaware corporation

4. Simco Industries, Inc., a Michigan company

5. Dielectrics, Inc., a Massachusetts company

6. Contech Medical, Inc., a Rhode Island company

7. DAS Medical Holdings, LLC, a Georgia limited liability company, and its wholly-owned subsidiaries:

a. Sterimed, LLC, a Georgia limited liability company

b. One Degree Medical Holdings, LLC, a Georgia limited liability company

c. DAS Medical Corporation, a Delaware company, and its wholly-owned subsidiary:

i. DAS Medical International, S.R.L., a Dominican Republic company

8. UFP Realty LLC, a Massachusetts limited liability company, and its wholly-owned subsidiaries:

a. UFPT MA, LLC, a Massachusetts limited liability company

b. UFP CO, LLC, a Colorado limited liability company

c. UFP FL, LLC, a Florida limited liability company

d. UFP TX, LLC, a Texas limited liability company

e. UFP MI, LLC, a Michigan limited liability company

f. UFP IA, LLC, an Iowa limited liability company