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Lucis

AI-supported preventive health blood testing platform

Overview

Lucis is a preventive-health platform based in Paris that turns regular blood tests into AI-assisted, clinician-reviewed action plans across nutrition, supplements, activity, sleep, and mental health. Members get blood drawn at partner labs across Europe; Lucis analyzes an extensive biomarker panel and presents a longitudinal dashboard rather than a one-off PDF, focusing on prevention and education instead of diagnosis. The platform integrates AI insights with clinician review to tailor ongoing guidance, supported by a network of labs and physicians. Lucis differentiates itself from typical lab services by offering continuous monitoring through a multi-year dashboard and actionable plans rather than isolated reports. Its goal is to help people prevent health issues by providing lasting, education-forward guidance that empowers lifestyle changes, backed by professional oversight.

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About Lucis

Simplify's Rating
Why Lucis is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Data & AnalyticsConsumer SoftwareAI & Machine LearningHealthcare

Company Size

11-50

Company Stage

Series A

Total Funding

$28.6M

Headquarters

Paris, France

Founded

2023

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Simplify's Take

What believers are saying

  • Lucis raised $20 million on May 26, 2026, giving it aggressive runway.
  • Lucis says 10,000 users and one million biomarker tests signal strong early demand.
  • The March 2026 Livi collaboration and Eurofins, Randox links widen distribution fast.

What critics are saying

  • France's health regulators can reclassify Lucis as medical advice, slowing growth quickly.
  • Consumer retention depends on repeated testing; drop-offs destroy unit economics within 12 months.
  • Expansion into Spain, Germany, and Italy by end-2026 strains lab quality and clinician oversight.

What makes Lucis unique

  • Lucis combines 100+ biomarkers, physician review, and AI action plans in one subscription.
  • Its six-month longitudinal dashboard tracks biomarker changes, not one-off PDFs.
  • The March 2026 Livi partnership adds preventive teleconsultation after results delivery.

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Funding

Total Funding

$28.6M

Above

Industry Average

Funded Over

3 Rounds

Series A funding typically happens when a startup has a product and some customers, and now needs funding to scale. This money is usually used to grow the team, expand marketing, and improve the product. Venture capital firms are frequently the main investors here.
Series A Funding Comparison
Above Average

Industry standards

$15M
$8.2M
$15M
$20M
$30M

Benefits

  • Relocation Assistance

Growth & Insights and Company News

Headcount

6 month growth

2%

1 year growth

8%

2 year growth

31%
Tech.eu
May 22nd, 2026
Lucis raises $20M Series A to scale AI-driven preventive health platform across Europe

Lucis, a preventive healthcare platform, has raised $20 million in Series A funding led by Singular, with participation from General Catalyst, Y Combinator and angel investors. The round follows an $8 million seed raised four months ago, bringing total funding to $28 million. Founded in 2025 by Maxime Berthelot and Baptiste Debever, Lucis analyses over 110 blood biomarkers and uses AI-powered insights reviewed by physicians to deliver personalised health guidance. Among users completing six-month follow-ups, 75% improved at least three biomarkers without medication, whilst over 80% opted to retest. The platform has reached 10,000 users across France, the UK, Ireland and Portugal, delivering over one million biomarker tests. Lucis plans to expand into Spain, Germany and Italy by end-2026.

Traders Union
Dec 16th, 2025
Lucis Life secures $8.5M seed round in healthcare and longevity sector

Lucis Life has raised $8.5 million in a seed funding round, led by founder Julien Bouteloup. The healthcare and longevity company achieved this milestone just one year after its launch. The funding round signals growing investor confidence in healthcare innovation. Bouteloup, known for his advocacy around addressing challenges beyond financial returns, has positioned Lucis Life as a leading innovator in the longevity sector. Details about participating investors and specific plans for the capital were not disclosed.

Maddyness
Dec 16th, 2025
Lucis raises funding from Y Combinator and Motier Ventures for predictive health platform

Lucis, a French health-tech startup, is entering the predictive health market with backing from Y Combinator and Motier Ventures. The company addresses a gap in Europe's healthcare system, which excels at treatment but falls short on prevention. Founded by CEO Maxime Berthelot, Lucis focuses on making blood tests more accessible and interpretable for comprehensive health monitoring. The startup identifies blood analysis as the best shortcut for understanding overall health status, but notes that access, cost and particularly interpretation remain significant barriers. Lucis joins a growing field of French longevity-focused startups, including Zoi, founded by former Emmanuel Macron adviser Ismaël Emelien, and Kor, which raised several million euros last year. The trend reflects increasing demand for preventive health solutions amongst tech entrepreneurs and consumers.

Zero
Apr 15th, 2025
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