List of Biotech Companies in Watertown, Massachusetts (2025)

SQZ Biotech, Landmark Bio, Affini-T Therapeutics, Enanta Pharmaceuticals, Fluent BioSciences and 7 Traits Genomics, are some prominent biotech companies in Watertown, a growing biotech hub in Massachusetts.

With Cambridge and Boston saturated with many biotech companies, Watertown, which is situated at the downriver from Boston’s central life sciences hub, is helping companies aiming to expand out of Boston. Watertown has comparative advantages over Boston such as lower rental and land costs, and increased junior talent pool.

BioLabs Watertown, is a 21,000 sq ft facility, with many labs and office spaces, and is now home to 15+ early-stage life science startups

Biotech Companies in Watertown, Massachusetts

7 Traits Genomics

155 Arlington Street
Watertown, MA 02472

Tel: (857) 772-4191
Email: projects@7-traits.com
https://7-traits.com

Abata Therapeutics

100 Forge Road, Suite 200
Watertown, MA 02472

Email: General@abatatx.com
Tel: (857) 230-0070
https://abatatx.com/

Acrivon Therapeutics

Watertown, MA, USA
480 Arsenal Way
Suite 100
Watertown, MA 02472

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Email: partnerships@acrivon.com,
press@acrivon.com
Tel: 617-207-8979
https://acrivon.com

Affini-T Therapeutics, Inc.

100 Forge Road
Watertown MA 02472

Email: info@affinittx.com
Tel: 6173803737
https://affinittx.com/

Aldatu Biosciences

313 Pleasant Street,
1st Floor West Watertown, MA 02472

Email: change@aldatubio.com
https://www.aldatubio.com/

ARKUDA Therapeutics, Inc.

200 Arsenal Yards Blvd, Suite 220,
Watertown, MA 02472

Phone: 617.579.1306
Email: info@arkudatx.com
https://www.arkudatx.com/

Arranta Bio (Recipharm)

650 Pleasant St, Watertown,
MA 02472, United States

Phone: +1 617-527-9693
https://www.recipharm.com/

Avencell Therapeutics, Inc.

500 Forge Road
Watertown, MA 02472 USA

Email: info@avencell.com
Phone: +1 (617) 941-7468
https://avencell.com/

Averna Therapeutics Inc.

134 Coolidge Avenue,
Watertown, MA 02472
USA

Tel: (617) 308-9182
Email: info@avernatx.com
https://avernatx.com

C4 Therapeutics

490 Arsenal Way, Suite 120
Watertown, MA 02472

Phone: 6172310700
Email: info@c4therapeutics.com
https://c4therapeutics.com/

Corner Therapeutics

300 N. Beacon Street
Bldg 39, Ste 202
Watertown MA 02472

Tel: 617-701-7014
Email: contact@cornertx.com
https://cornertx.com

Cultivarium

490 Arsenal Wy Suite 110,
Watertown, MA 02472

Email: info@cultivarium.org
https://www.cultivarium.org

Day Zero Diagnostics Inc.

250 Arsenal Place, Suite 320
Watertown, MA 02472

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

Diagonal Therapeutics

200 Arsenal Yards Blvd, Suite 220
Watertown, MA 02472

Email: info@diagonaltx.com
bd@diagonaltx.com
https://www.diagonaltx.com

Disc Medicine

321 Arsenal Street, Suite 101,
Watertown, MA 02472

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

Dyno Therapeutics

343 Arsenal St
Suite 101
Watertown, MA 02472

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

Eloxx Pharmaceuticals, Inc

480 Arsenal Way, Suite 130
Watertown, MA 02472

Phone: (781) 577-5300
E-mail: info@eloxxpharma.com
https://www.eloxxpharma.com/

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Empress Therapeutics

99 Coolidge Ave, 5th Floor
Watertown, MA 02472

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

ENANTA Pharmaceuticals, Inc.

500 Arsenal Street
Watertown, MA 02472

Telephone: (617) 607-0800
Fax: (617) 607-0530
Email: bd@enanta.com, info@enanta.com
https://www.enanta.com/

EnPlusOne Biosciences

313 Pleasant Street Suite 4W
Watertown, MA 02472

Email: info@enplusonebio.com,
bd@enplusonebio.com
Phone: +1 617-744-6739
https://www.enplusonebio.com/

Entact Bio

65 Grove St. Suite 303
Watertown, MA 02472

Email: contact@entactbio.com
Phone: 617-909-7579
https://entactbio.com/

EyePoint Pharmaceuticals

480 Pleasant Street, Suite A-210
Watertown, MA 02472
United States

Phone: (1.833.393.7646)
Fax: 617.926.5050
https://eyepointpharma.com/

Fluent BioSciences

150 Coolidge Ave, Watertown,
MA 02472, United States

Phone: +1 617-655-9666
https://www.fluentbio.com/

Ingenia Therapeutics

490 Arsenal Way, Suite 100B,
Watertown, MA 02472

E-mail: info@ingeniatx.com
https://www.ingeniatx.com

iTeos Therapeutics

321 Arsenal St Bldg 312,
Suite 301. Watertown, MA
02472
United States

Tel: +1 (857) 2044583
https://www.iteostherapeutics.com

Kymera Therapeutics

200 Arsenal Yards Blvd., Suite 230
Watertown, MA 02472

Email: inquiries@kymeratx.com
https://www.kymeratx.com/

Landmark Bio

300 North Beacon Street
Watertown, MA 02472

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

Lyndra Therapeutics

R&D Headquarters:
65 Grove Street, Suite 301,
Watertown, MA 02472

Tel: 8573044512
https://lyndra.com

Lyra Therapeutics

480 Arsenal Way
Watertown, MA 02472

Phone: 617.393.4600
Email: contactus@lyratx.com
https://lyratherapeutics.com/

Mariana Oncology

100 Forge, 6th Floor,
Watertown MA 02472

Email: sarah@argotpartners.com
https://www.marianaoncology.com/

Nanite Inc.

200 Dexter Ave Ste 140 Watertown,
MA, 02472-4244 United States.

Phone: (425) 822-5252
https://nanitebio.com/

Neumora Therapeutics

490 Arsenal Way, Suite 200
Watertown, MA 02472

Tel: (857) 760-0900
https://neumoratx.com/

Nexo Therapeutics, Inc

Research Labs
65 Grove Street
Suite 102
Watertown, MA 02472

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

Nocion Therapeutics

15 Main Street, No. 247
Watertown, MA 02472

Email: info@nociontx.com
Tel: 781-819-2877
https://www.nociontx.com/

Orna Therapeutics

500 Forge Road,
Watertown, MA 02472

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

Parallel Bio

200 Dexter Ave
Watertown, MA 02472

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Email: bd@parallel.bio
https://www.parallel.bio/

Piton Therapeutics, Inc.

313 Pleasant St.
Watertown MA 02472

Email: info@pitontx.com
https://www.precidiag.com/

Pulsar Bio, Inc.

200 Dexter Avenue
Watertown, MA 02472

Email: info@pulsarbio.com​
Tel: 4049929811
https://www.pulsarbio.com/

ReciBioPharm

650 Pleasant Street
Watertown, MA 02472
USA

Phone: +1 617-865-6920
https://www.recipharm.com

Redona Therapeutics

490 Arsenal Way, Suite 100B
Watertown, MA 02472

Phone: (617) 603 6060
Email: contact@redonatx.com
https://redonatx.com

Remix Therapeutics

100 Forge Rd, Ste 400 Watertown,
MA, 02472

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

Riparian Pharmaceuticals

201 Dexter Ave, Watertown,
MA 02472, United States

Phone: +1 617-398-7784
Email: contact@riparianpharma.com
https://www.riparianpharma.com/

Sai Life Sciences Inc

300 N Beacon St, Watertown,
MA 02472, United States

Phone: +1 617-729-4936
https://www.sailife.com/boston-usa/

Satellite Bio

580 Pleasant Street
Watertown, MA 02472

Email: info@satellite.bio
https://satellite.bio/

Seismic Therapeutic

250 Arsenal Place, Suite 210
Watertown, MA 02472

Tel: 617-294-9424
Email: info@seismictx.com
https://seismictx.com

Selecta Biosciences, Inc.

65 Grove Street
Watertown, MA 02472

Tel: 617-923-1400
Email: info@selectabio.com
https://selectabio.com/

SQZ Biotech

200 Arsenal Yards Boulevard
Watertown, MA 02472

Tel: (617) 758-8672
Email: contact@sqzbiotech.com
https://sqzbiotech.com/

Stelluar Bio

65 Grove Street, Suite 303
Watertown, MA 02472

Tel: 857-299-6024
Email: info@stellularbio.com
https://www.stellularbio.com/

Tectonic Therapeutic

490 Arsenal Way, Suite 210
Watertown, MA 02472

Email: info@tectonictx.com
Tel: 339-666-3320
https://tectonictx.com/

Tome Biosciences

100 Talcott Ave, Watertown,
MA 02472, United States

Email: hello@tome.bio
https://tome.bio/

Transition Bio

100 Talcott Avenue
Watertown
MA 02472, United States

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Treeline Biosciences, Inc

Watertown,
Massachusetts 02472, US

Web: http://www.treeline.bio

Vigil Neuroscience, Inc.

100 Forge Road
Suite 700
Watertown, MA 02472

Email: info@vigilneuro.com
Tel: +1 857-254-4445
https://www.vigilneuro.com/

ViroGen

200 Dexter Ave.,
Watertown, MA 02472
US

Phone: (617) 417-1500
Fax: (617) 321-4090
https://www.virogen.com/

Werewolf Therapeutics

200 Talcott Avenue
Watertown, MA 02472

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

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