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SiSaf

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Advancing RNA Therapeutics

Guildford, United KingdomFounded 2008Biotech & Life Sciences
Valuation $50–100M Last recorded · 2020
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for SiSaf and the history behind them.

About SiSaf

SiSaf is a biopharmaceutical company founded in 2006 by Dr. Suzanne Saffie-Siebert, a nanoparticle scientist with over 25 years of experience in the pharmaceutical industry.

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Dr. Saffie-Siebert's journey as an entrepreneur is deeply connected to her scientific expertise. She is the inventor of the company's proprietary Bio-Courier technology, a drug delivery platform based on silicon-stabilized liposomes. This technology is designed to overcome the challenges of delivering RNA-based therapies to specific cells in the body.

SiSaf's business model is focused on the development of RNA therapeutics for rare genetic disorders. The company leverages its Bio-Courier platform to create a pipeline of treatments for these diseases. SiSaf operates in the biopharmaceutical market, collaborating with other companies and research institutions to advance its therapeutic programs. The company generates revenue through a combination of research and development collaborations, licensing agreements, and the future commercialization of its products.

The company's core product is its Bio-Courier technology. This platform utilizes silicon-stabilized liposomes to encapsulate and protect RNA molecules, ensuring their safe and effective delivery to target cells. The benefits of this technology include improved stability, reduced toxicity, and enhanced therapeutic efficacy of RNA-based drugs. A key selling point of the Bio-Courier platform is its potential to enable the development of treatments for a wide range of rare genetic diseases that are currently untreatable.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2008
Headquarters
Guildford, United Kingdom
Employees
17
Open positions
None listed
Dealroom signal
67.3/100
Industry
Health
Sub-industry
Pharmaceutical, BioTechnology
Sector
Biotech & Life Sciences, Biotechnology, Drug Development, Spinout, Disease, Biotech and Pharma, Woman Founder, Horizon Europe, DT and LS
Technology
Nanotech
Business model
Manufacturing
Client focus
b2b

Funding history

6 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
SERIES B✓Equity / VC Nov 2020 $13M $53M Vickers Venture Partners · Future Fund —
SERIES B✓Equity / VC May 2018 $4.3M $17M Vickers Venture Partners · Innovation Ulster · Invest Northern Ireland ↗
Showing the latest 2 of 6 recorded eventsBook a demo for the full funding history →

Growth signals

SiSaf website traffic

Latest recorded traffic for SiSaf is 530 monthly website visits, down 33.8% over the last three months. SiSaf's team declined 22.7% over the past year.

Latest monthly visits530 3-month web change-33.8% 1-year team growth-22.7%
Summary metrics are public; monthly history is available with a demoCompare with peers →

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.

Seed1 investor entered at this stage

  • SVG Partners

Series A4 investors entered at this stage

  • Vickers Venture Partners
  • Innovation Ulster
  • Invest Northern Ireland
  • Future Fund

Other known investors2 additional known investors

  • Ulster University
  • Clarendon Fund Managers
Team profiled 12 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 5 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
3 countries with
team presence
🇬🇧 United Kingdom81.3%
🇺🇸 United States12.5%
🇪🇸 Spain6.3%
3 countries shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about SiSaf 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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