Top Series A Biotech companies

About GenentechWe're passionate about finding solutions for people facing the world's most difficult-to-treat conditions. That is why we use cutting-edge science to create and deliver innovative medicines around the globe. To us, science is personal.Making a difference in the lives of millions starts when you make a change in yours. If you’d like to join our team, view our openings at gene.com/careers. Our patient resource center is dedicated to getting patients and caregivers to the right resources. You can reach them at 1 (877) GENENTECH (436-3683)Monday-Friday, 6am-5pm PST or patientinfo@gene.com. Community Guidelines:1. We want to foster positive conversation around the issues we are passionate about. To that end, we remove profanity, content that contains threatening language, content that is aimed at private individuals, personal information, and repeated unwanted messages.2. Don’t mention any medicines by name — ours or anyone else’s.Because of the fair balance rules governing our industry, we cannot post any comments that reference any pharmaceutical brand, product, or service. Please do not mention any specific medicines by name, or include any links to third party sites in your comments.3. This isn’t the place to report or discuss side effects.This site is not intended as a forum for reporting side effects experienced while taking a Genentech product. Instead, you should report any side effects to Genentech Drug Safety at 1-888-835-2555. You can also report side effects of any prescription product directly to the FDA at 1-800-FDA-1088 or by visiting www.FDA.gov/medwatch.4. Don’t pitch your product or service.Please don't use our page as a place to promote your product or pitch your services. Please also avoid posting links to external sites. We reserve the right to remove any posts that are deemed promotional.

• Series A
• 18.3k employees
• Founded 1976

Esco Lifesciences Group is a world-leading manufacturer of laboratory, pharmaceutical equipment, bioprocess tools and IVF medical devices, delivering sustainable workflow solutions to advance global health. Since 1978, the Singapore-based company is committed to excellence, ensuring forward-thinking technology, responsive support, and reliability, making Esco a trusted partner for the life science and medical markets in more than 150 countries.Our VisionStrategically positioned to bridge the East and West, Esco aspires to become the leading provider of life science and fertility tools, delivering sustainable technologies that foster a healthier, more equitable, and resilient future.Our MissionWe provide cutting-edge, sustainable workflow solutions that empower scientists and innovators to advance global health and enhance quality of life.ROOTED IN VALUES; DRIVEN BY SUCCESS

• Series A
• 1.3k employees
• Founded 1978

Rentschler Biopharma is a leading contract development and manufacturing organization (CDMO) focused exclusively on client projects. The company offers process development and manufacturing of biopharmaceuticals as well as related consulting activities, project management and regulatory support. Rentschler Biopharma's high quality is proven by its long-standing experience and excellence as a solution partner for its clients. A high-level quality management system, a well-established operational excellence philosophy and advanced technologies ensure product quality and productivity at each development and manufacturing step. Rentschler Biopharma is a family-owned company with about 1,400 employees, headquartered in Laupheim, Germany, with operations in Milford, MA, USA. For years, Rentschler Biopharma has supported numerous modalities on their way from concept to market, regularly contributing to biopharmaceuticals reaching market approval. In 2023 alone, we contributed to nearly 25% of all FDA-approved biologics. In 2024, the company joined the United Nations Global Compact, emphasizing Rentschler Biopharma's focus on sustainability.

• Series A
• 912 employees
• Founded 1927

Altos Labs is a biotechnology company focused on restoring cell health and resilience through cell rejuvenation to reverse disease, injury, and the disabilities that can occur throughout life. The company comprises a community of leading scientists, clinicians, and leaders from academia and industry working together towards this common mission. Altos operates in the San Francisco Bay Area, San Diego and Cambridge, UK.Note: Altos Labs will not ask you to download a messaging app for an interview or spend your own money to get started as an employee. If this sounds like your interaction with people claiming to be with Altos, it is not legitimate or a practice within our organization.

• Series A
• 557 employees
• Founded 2021

BlueRock Therapeutics is a clinical stage cell therapy company focused on creating cellular medicines to treat devastating diseases. We are harnessing the power of cell therapy to create a pipeline of new medicines for people suffering from neurological and ophthalmic diseases. Two of our novel investigational cell therapies, one for the treatment of Parkinson’s disease and one for the treatment of primary photoreceptor diseases, are clinical stage programs. BlueRock was founded in 2016 as a joint venture of Versant Ventures and Leaps by Bayer, the impact investing arm of Bayer AG that invests in paradigm-shifting breakthrough innovation. In late 2019, BlueRock became a wholly owned, independently operated subsidiary of Bayer AG. Our culture is defined by the courage to persist regardless of the challenge, the urgency to transform medicine and deliver hope, integrity guided by mission, and community-mindedness with the understanding that we are all part of something bigger than ourselves. For more information, visit www.bluerocktx.com.

• Series A
• 488 employees
• Founded 2016