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Cydan

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Orphan Disease Therapy and Drug Accelerator

Cambridge, United StatesFounded 2013Biotech & Life Sciences
Valuation $100–250M Last recorded · 2017
Headcount <100 Current team size
Total funding $50–100M Disclosed equity funding
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About Cydan

Cydan, operating through its online platform fishweights.net, is a biotechnology accelerator focused on creating and developing therapies for rare genetic diseases. Established in 2013, the company was founded by a syndicate of venture capital firms including New Enterprise Associates, Pfizer Venture Investments, and Alexandria Venture Investments, alongside co-founder and former CEO Chris Adams. The firm operates under a unique business model, identifying promising scientific research and drug development programs from academic and research institutions. It then establishes new, independent companies, or 'NewCos', around these assets to advance them through preclinical and early clinical development. This approach allows Cydan to de-risk and accelerate the creation of novel therapeutics for patient populations with unmet medical needs.

The core of Cydan's strategy lies in its 'orphan drug accelerator' model. Instead of developing drugs in-house, it acts as a company-building engine. The process begins by sourcing and rigorously evaluating scientific innovations with the potential to treat rare monogenic diseases. Once an asset is selected, Cydan provides the initial funding, strategic guidance, and operational support to launch a new company dedicated to that specific therapeutic program. The goal for each NewCo is to reach a significant value inflection point, such as achieving proof-of-concept in clinical trials, which then allows the new entity to secure further independent financing or be acquired. This model serves a portfolio of companies, diversifying risk while addressing the significant challenges inherent in rare disease drug development. Notable companies to emerge from the Cydan accelerator include Vtesse, subsequently acquired by Sucampo, and Imara, which focuses on sickle cell disease.

Cydan's target market is the orphan drug sector, a segment of the pharmaceutical industry focused on diseases that affect small patient populations. By building and launching multiple focused companies, Cydan provides a streamlined pathway for translating early-stage science into viable clinical-stage assets. This strategy offers an alternative to the traditional pharmaceutical R&D pipeline and attracts investment from venture capital firms looking to participate in the high-growth potential of the rare disease market. The company generates returns through the equity it holds in the successful spin-out companies it creates and nurtures.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2013
Headquarters
Cambridge, United States
Employees
7
Open positions
None listed
Dealroom signal
57.8/100
Industry
Health
Sub-industry
BioTechnology
Sector
Biotech & Life Sciences, Biotechnology, Disease, Biotech and Pharma, Hard Tech, DT and LS, science-based
Business model
Manufacturing
Client focus
b2c

Funding history

3 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
EARLY VCOther financing Oct 2017 $34M $136M NEA · Pfizer · Lundbeckfonden Ventures · Longitude Capital —
EARLY VCOther financing Oct 2013 $10M $40M Lundbeckfonden Ventures · Alexandria Equities · Bay City Capital · NEA —
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Growth signals

Cydan website traffic

Latest recorded traffic for Cydan is 1.2K monthly website visits, down 98.3% over the last three months. Cydan's team grew 0% over the past year.

Latest monthly visits1.2K 3-month web change-98.3% 1-year team growth0%
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Similar companies

Closest operating peers by Dealroom taxonomy

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Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

7 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Series A7 investors entered at this stage

  • NEA
  • Pfizer
  • Alexandria Equities
  • Bay City Capital
  • Lundbeckfonden
  • Lundbeckfonden Ventures
  • Longitude Capital
Team profiled 3 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 1 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
🇺🇸 United States · Cambridge HQ
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Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Cydan on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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