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Series B Companies in Waltham

Explore 12 series b startups based in Waltham, United States. Access verified founder contact information and fundraising data.

Total Companies
12
Total Funding
$1.2B
Avg Funding
$103.8M
Industries
7

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Biotechnology
$50.0M
raised

Spectrawave is a medical device company that develops optical diagnostic and therapeutic devices.

Sep 2024
Series B

Founder Contacts

30,000+ verified contacts

$9.3M
raised

Regenacy Pharmaceuticals Provides Healthcare Services.

Aug 2022
Series B

Founder Contacts

30,000+ verified contacts

Health Care
$55.0M
raised

Linus Health is a digital health company focused on improving mental health and brain health by using screening technology.

Jul 2021
Series B

Founder Contacts

30,000+ verified contacts

Biotechnology
$200.0M
raised

Upstream Bio focuses on developing an antibody therapy for the treatment of severe asthma.

Jun 2023
Series B

Founder Contacts

30,000+ verified contacts

Collaboration

Humatics is developing microlocation products that will revolutionize how people and machines locate, navigate, and collaborate.

Jun 2023
Series B

Founder Contacts

30,000+ verified contacts

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Analytics
$150.0M
raised

BostonGene is a biomedical software company for advanced patient analysis and personalized therapy in the fight against cancer.

Apr 2022
Series B

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)
$14.0M
raised

Veo Robotics develops smart device solutions to enable high performance collaborative industrial robotics.

Apr 2023
Series B

Founder Contacts

30,000+ verified contacts

$600.0M
raised

Kailera Therapeutics develops next-generation injectable and oral therapies for chronic weight management.

Oct 2025
Series B

Founder Contacts

30,000+ verified contacts

Information Technology
$8.2M
raised

Finwave Semiconductor develops a 3DGaN technology designed to enhance 5G devices.

May 2025
Series B

Founder Contacts

30,000+ verified contacts

$24.0M
raised

Paragonix Technologies is a medical device company specialized in organ preservation devices for the improvement of donor organ quality.

Mar 2023
Series B

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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Biotechnology
$103.0M
raised

Mythic Therapeutics is a biotechnology company focused on a new generation of groundbreaking cancer therapeutics.

Dec 2021
Series B

Founder Contacts

30,000+ verified contacts

Customer Service
$32.0M
raised

Third Pole develops products that generate and deliver electric nitric oxide for hospital, ambulatory, and home use.

Dec 2022
Series B

Founder Contacts

30,000+ verified contacts

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