Full List of Biotech Companies in Waltham, Massachusetts (2025)

Orionis Biosciences Inc

950 Winter Street
Waltham, MA 02451

Tel: 617-651-4594
https://orionisbio.com/

Oruka Therapeutics

203 Crescent Street Building 21, Suite 203,
Waltham, MA 02453

Email: info@orukatx.com
https://orukatx.com

Palleon Pharma

266 Second Avenue
Waltham MA 02451

Tel: (857) 285-5900
Email: info@palleonpharma.com
https://palleonpharma.com/

Paragonix Technologies Inc.

950 Winter St, Waltham,
MA 02451, United States

Email: info@paragonixtechnologies.com
Phone: +1 781-428-4153
https://www.paragonixtechnologies.com

Pharmaron (US)

404 Wyman St
Suite 405
Waltham, MA 02451

Email: bd@pharmaron.com
https://www.pharmaron.com/

Photys Therapeutics

880 Winter Street, Suite 2002
Waltham, MA 02451

Web: https://www.photys.com/

Pretzel Therapeutics

854 Lexington Street, Suite 154
Waltham MA 02452

Email: info@pretzeltx.com
https://www.pretzeltx.com/

Pulmovant Inc.

303 Wyman St, Suite 300
Waltham, MA 02451

Email: info@pulmovant.com
https://www.pulmovant.com/

Q32 BIO

830 Winter Street,
Waltham, MA 02451

Email: info@q32bio.com
https://www.q32bio.com/

QDTI (Quantum Diamond Technologies Inc.)

1466 Main St, Waltham,
MA 02451, United States

Phone: +1 617-440-4484
https://qdti.com

Ranok Therapeutics

303 Wyman Street, Suite 300
Waltham, MA 02451

Email: bd@ranoktherapeutics.com
https://www.ranoktherapeutics.com

Repligen Corporation

41 Seyon Street
Building 1, Suite 100
Waltham, Massachusetts 02453
USA

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Tel: 781.250.0111
800.622.2259 (Toll-free)
781.250.0115 (Fax)
Email: customerserviceUS@repligen.com
https://www.repligen.com/

Revvity

Headquarters:
77 4th Avenue,
Waltham MA, 02451-7567

Customer Care: 800-762-4000
https://www.revvity.com

Sanofi-Genzyme

153 2nd Ave, Waltham,
MA 02451, United States

Tel: +1 781-487-5728
https://www.sanofi.com/

Scipher Medicine

500 Totten Pond Rd
Waltham, Massachusetts 02451, US

Tel: +1 855-724-7437
Email: info@sciphermedicine.com
https://www.sciphermedicine.com

Sionna Therapeutics

21 Hickory Drive, Suite 500
Waltham, MA 02451

Email: contact@sionnatx.com
Tel: 617-819-2020
https://www.sionnatx.com/

Skyhawk Therapeutics, Inc.

35 Gatehouse Drive
Waltham, MA 02451
United States of America

Email: info@skyhawktx.com
Tel: 617.858.0041
https://www.skyhawktx.com/

Sobi Inc (Swedish Orphan Biovitrum)

77 4th Avenue, 3rd Floor
Waltham, MA 02451

Email: medinfo.us@sobi.com
Phone: +1 781-786-7370
https://www.sobi.com/

Spyre Therapeutics, Inc.

221 Crescent Street
Suite 105
Waltham, MA 02453

Web: https://spyre.com/

Syndax Pharmaceuticals

35 Gatehouse Drive
Building D, Floor 3
Waltham MA 02451

Tel: 781.419.1400
Fax: 781.419.1420
Email: ir@syndax.comdax.com,
info@syndax.com
https://syndax.com/

Thermo Fisher Scientific

Global Headquarters:
168 3rd Ave, Waltham,
MA 02451, United States

Tel: +1 781-622-1045
https://www.thermofisher.com/

Third Pole, Inc.

309 Waverley Oaks Road Suite 404
Waltham, MA 02452

Tel: (800) 838-1471
Email: info@pole3.com
https://www.pole3.com/

Triveni Bio

100 Beaver St Suite 307,
Waltham, MA 02453, United States

Phone:+1 781-472-2230
https://triveni.bio/

TScan Therapeutics, Inc.

830 Winter St.
Waltham, Ma 02451

Phone: 857-399-9500
Email: info@tscan.com
https://www.tscan.com/

Upstream Bio

Suite 200
890 Winter Street
Waltham, MA 02451

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Email: info@upstreambio.com
https://upstreambio.com/

Ventus Therapeutics

100 Beaver St, Suite 201
Waltham, Massachusetts 02453

Email: info@ventustx.com
https://www.ventustx.com

Viridian Therapeutics

221 Crescent Street, Suite 401
Waltham, MA 02453

Tel: 617.272.4600
Fax: 617.272.4601
Email: info@viridiantherapeutics.com
https://www.viridiantherapeutics.com/

Visterra, Inc.

275 Second Ave. 4th Floor
Waltham, MA 02451

Email: info@visterrainc.com
Tel: (617) 498-1070
https://visterrainc.com/

X-Chem, Inc.

100 Beaver Street
Waltham, MA 02453
United States

Tel: +1 781.419.6900
Email: info@x-chemrx.com
https://www.x-chemrx.com/

Xilio Therapeutics

828 Winter Street, Suite 300,
Waltham, MA 02451

Tel: (857) 524-2466
Email: info@xiliotx.com
https://xiliotx.com/

Zenas BioPharma

852 Winter Street
Suite 250
Waltham, MA 02451

Web: https://zenasbio.com/

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