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Tethis

Biotech & Life Sciences · Milan, Italy · Founded 2004

Automated pre-analytical platform for comprehensive liquid biopsy MoreLess

Tethis S.p.A. is a biotechnology company, founded in 2004 by Massimo Gatelli and Paolo Milani, headquartered in Milan, Italy. The company is focused on improving the reliability and scalability of in-vitro diagnostics by applying bio and nanotechnology. Tethis has developed an innovative workflow to integrate liquid biopsy into clinical practice for precise cancer management.

The company's core technology consists of the See.d® instrument and proprietary nanocoated SmartBioSurface® (SBS) slides. The See.d® platform is a fully automated, universal blood sample preparator that processes blood at the point of collection. It automates the separation of plasma, lysis of red blood cells, and fixes white blood cells onto the specialized SBS slides, while also making plasma available for cell-free content analysis. This process standardizes the pre-analytical steps, a critical bottleneck in liquid biopsy, ensuring maximum sample integrity and quality for downstream multiomic analysis. The nanocoated slides allow for the identification and characterization of rare cells, like circulating tumor cells (CTCs), with high sensitivity, even in early-stage cancers.

Tethis serves hospitals, diagnostic laboratories, and research institutions. Its business model is based on selling the See.d® hardware systems and the consumable SmartBioSurface® slides. The company has engaged in multiple collaborations to advance its technology, including a research agreement with Sheba Medical Center in Israel to evaluate CTCs in rectal cancer and with the European Institute of Oncology in Milan for a clinical study on the See.d platform's performance. Tethis has secured significant funding to support its development, including a €15 million investment in January 2025 from the Enea TECH and Biomedical Foundation and a prior investment from Indaco Ventures and Genextra.

Keywords: liquid biopsy, cancer diagnostics, in-vitro diagnostics, nanotechnology, pre-analytical platform, circulating tumor cells, See.d instrument, SmartBioSurface, oncology, automated sample preparation, molecular diagnostics, medical devices, digital pathology, precision medicine, cancer monitoring, biomarker discovery, cell analysis, multiomics, cfDNA, CTC detection

Company overview

Tethis company information

The essential company record, classifications and operating signals in one place.

Status
Operational
Founded
2004
Headquarters
Milan, Italy
Employees
36
Open positions
None listed
Dealroom signal
87.6
client focusb2btechnologyDeep TechtechnologyNanotechsub industryBioTechnologysub industryMedical Devicesbusiness modelManufacturingsectorTestingindustryHealthsectorBiotechnologysectorOncologysectorBiopsysectorDronessectorSpinoutsectorInnovation Radar

Valuation & funding

Tethis funding history

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
EARLY VCEquity / VC Feb 2025 $17M $66M Fondazione ENEA Tech
GRANTOther financing Mar 2018 $55K European Innovation Council
SUPPORT PROGRAMOther financing Jan 2018 $0 EIT Health
EARLY VCEquity / VC Feb 2014 Undisclosed
EARLY VCEquity / VC Feb 2013 Undisclosed
EARLY VCEquity / VC Sep 2012 Undisclosed
EARLY VCEquity / VC Feb 2012 Undisclosed
EARLY VCEquity / VC Dec 2011 Undisclosed
GRANTOther financing Apr 2011 Undisclosed
EARLY VCEquity / VC May 2010 Undisclosed
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Financials

Revenue, earnings and profit over time

Reported history and available estimates. Estimated years are marked “E”; sparse fields are left blank rather than inferred.

YearRevenueGrowthEBITDAMarginProfitMargin
2026 $996K 0% −$2.1M -206.7% −$2.5M -251.5%
2025 $996K 0% −$2.1M -206.7% −$2.5M -251.5%
2024 $996K +297.7% −$2.1M -206.7% −$2.5M -251.5%
2023 $251K +3.7% −$2.1M -822.2%
2022 $242K -2.2% −$2.1M -852.3%
2021 $247K +31.8% −$2M -800.8%
2020 $187K −$1.7M -922.4%
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Growth signals

Tethis website traffic

Latest recorded traffic for Tethis is 330 monthly website visits, up 13.8% over the last three months. Tethis's team grew 12.5% over the past year.

Latest monthly visits330 3-month web change+13.8% 1-year team growth+12.5%
Monthly website visits87 observations · Dec 2016–Jul 2026
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Comparisons

Tethis compared with similar companies

Dealroom’s weighted taxonomy model identifies the closest operating peers. Company identity and context stay open; selected comparison metrics preview what is available in the platform.

Showing 8 of the closest matchesCompare every metric →

Talent graph

Tethis's talent

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Team profiled 9 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.

Investors

6 investors on Tethis's cap table

Sourced from Dealroom's funding and investor records.

Seed 1 investor entered at this stage
European Innovation Council
Series A 1 investor entered at this stage
Fondazione ENEA Tech
Other known 4 additional known investors
EIT Health
National Research Council of Italy
University of Milan
Indaco Venture Partners

Global footprint

Where Tethis has talent and traffic

Workforce by country
4 countries with
team presence
🇮🇹 Italy90.6%
🇧🇷 Brazil3.1%
🇨🇭 Switzerland3.1%
🇳🇱 Netherlands3.1%
4 countries shown

In the news

Latest news about Tethis

Recent press, funding announcements, and product moves mentioning Tethis — open to read from the original sources.

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Market sentiment

What the market is saying about Tethis

An AI-synthesized read of the highest-engagement posts about Tethis on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

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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