Marketing content

Why invest in Diamidex?

Patented testing system: Diamidex has developed a patented testing system that delivers lab-validated water safety results five times faster than standard methods. It is faster than traditional methods, accurate in detecting harmful bacteria, and fully trusted by regulators. This makes Diamidex a breakthrough solution in microbiological analysis.

Recurring revenue model: Diamidex uses a recurring revenue model where each equipment sale leads to ongoing income from test kits and software use. Once a customer adopts the system, they rely on Diamidex’s consumables and digital tools for every test, creating steady, long-term revenue streams.

High-growth market: Diamidex is active in the fast-growing industrial microbiology market, valued at €6 billion and expected to grow to €12 billion by 2030. Increasing regulations and global demand for clean water and safer products are driving the need for faster, more reliable testing solutions.

Backed by leading investor PureTerra Ventures: The round is anchored by PureTerra Ventures, a top-tier investor in water-tech and sustainability. Following thorough technical, commercial, and financial due diligence, PureTerra has committed up to €2 million. Their investment scales with the total amount raised, with a minimum commitment of €500,000—underscoring their strong confidence in Diamidex’s potential.

A growing network of distributors: Over the past year, the number of distributors specializing in microbiological testing solutions has doubled from 8 to 16, significantly expanding Diamidex's market coverage.

Sam Dukan, CEO

"At Diamidex, we are transforming how industries detect harmful microbes. Our patented MICA technology drastically reduces test times from weeks to hours—protecting public health and improving operational efficiency. With proven results, valuable technology we own and a growing global customer base, we’re ready to scale. This funding will expand our commercial reach, accelerate recurring revenue, and bring faster, smarter microbiological testing to the world. Now is the time to invest in impact-driven innovation with global relevance."

Sam Dukan, CEO, Diamidex

Investment information

Days to invest:
32
Investing round ends:
25/06/2025
Type:
Equity offering
Invested so far:
€675,242.30
Equity offered:
3.52 – 26.75 %
Price per share:
€1.91
min investment 125 shares
Transaction costs:
1.50 %
Number of existing shares:
5,223,592
Fully diluted shares:
6,319,469
Pre-money valuation:
€12,070,186.00
Maximum issue size:
€5,499,845
Offered units:
2,879,500
Broker:
Oneplanetcrowd International B.V
License:
ECSPR

Overview

Company profile

Founded in 2014 in Marseille, France, Diamidex is transforming microbiological testing with its patented MICA technology. Designed for industries like water treatment, beverages, and pharmaceuticals, Diamidex enables the rapid detection of dangerous microorganisms such as Legionella pneumophila, Escherichia coli and Pseudomonas aeruginosa. Where traditional methods take up to two weeks, MICA delivers accurate results five times faster than standard methods, helping clients protect public health, avoid costly production delays, and reducing destruction of non-compliant products.

Proven in practice, backed by science
Over 17,000 tests have already been performed using MICA kits, with clients ranging from specialized laboratories to major industrial players. Diamidex has a strategic partnership with a global leader in microbiology, for the pharmaceutical adaptation of its technology. The company's business model—selling equipment plus recurring testing kits—ensures long-term, scalable growth.

Certified, protected, and ready to scale
Diamidex owns six patent families protecting its core innovations and holds exclusive rights to market its technology outside of the pharma sector. Its solutions comply with strict industry regulations (21 CFR Part 11) and integrate seamlessly with Laboratory Information Management Systems (LIMS), helping labs automate tasks, minimize errors, and stay well-organized. With solid traction, a growing customer base, and a strong pipeline, Diamidex is poised to lead the next generation of microbiological testing.

Company Info 

Company name: Diamidex
Managing director: Sam Dukan
Business ID number: 808 139 521
Founding year: 2014
Address: 163 Avenue de Luminy
Zone Luminy Biotech – Case 922
13009 Marseille
France
Industry: Microbiology
Number of employees: 30
Locations: 2
Website: www.diamidex.com
Social media:

 

Products and services

Diamidex offers two solutions for faster, more accurate microbiological water testing: MICA and MICA Highlight. 

1. MICA – Hardware + Test Kits 

MICA is a precision analysis device used with single-use reagent kits to detect harmful bacteria such as Legionella pneumophila, Escherichia coli, Alicyclobacillus, and Pseudomonas aeruginosa. Traditional methods can take up to 14 days—MICA delivers reliable, culture-based results in just 6 hours to 2 days, fully compliant with regulatory standards.

MICA Advance

2. MICA Highlight – Software-Driven Detection

MICA Highlight is Diamidex’s next-generation solution. It uses an optical patented innovation and advanced AI software to enumerate all culturable microorganisms without the need for reagent kits. This innovation reduces costs for customers and enables a scalable Software-as-a-Service (SaaS) model for Diamidex.

Both products address a critical industry pain point: slow and outdated testing methods.

While some competitors offer faster solutions, they often lack regulatory acceptance or struggle with accuracy. Diamidex bridges this gap—offering speed, reliability, and compliance. With global demand for safe water rising and a microbiology market set to reach €12 billion by 2030, Diamidex is positioned for significant growth across multiple sectors.

Mica Highlight

Business model

Production gardanne

Production gardanne

Diamidex operates a hardware and consumables model. The company sells its proprietary MICA equipment (€30,000–40,000 per unit) and generates recurring revenue from single-use test kits (~€12.50 per test). This creates predictable, scalable, high-margin revenue streams. For the newer MICA Highlight, revenue comes from software usage, positioning Diamidex toward a Software-as-a-Service (SaaS) model.

The two main customer segments today are:

  • External microbiological laboratories that perform testing services for third parties.
  • Companies with in-house laboratories, such as beverage producers (e.g., Coca-Cola, Nestlé Water) and pharmaceutical firms (via our partnership).

Diamidex sells directly in France, Germany, and the UK. In other regions (such as the Netherlands, Canada, Emirates and Greece), it operates through a distributor network. The exclusive collaboration with a partner for the pharmaceutical market provides both technological validation and royalty income. Barriers to entry in these markets are high: patents, proprietary reagents, AI integration, and regulatory credibility form a strong moat. This makes it difficult for competitors to match Diamidex’s speed, accuracy, and compliance.

Market

Kit Mica advance

Diamidex works in the industrial microbiology market—a vital sector that underpins water safety, public health, and quality assurance in industries like food, beverage, pharmaceuticals, and utilities. The global market was valued at €6 billion in 2023 and is expected to grow to €12 billion by 2030, driven by stricter regulations, increasing health awareness, and the need for faster, more reliable testing methods.

Diamidex focuses on the high-growth segment of rapid microbiological methods for water control. Today, over 75% of the market still uses slow, traditional culture-based testing, which can take days to detect contamination. For global companies like Coca-Cola, this delay carries major risk: if a batch of products is contaminated with harmful bacteria and released to the market, it can lead to costly recalls, reputational damage, and lost revenue. That is why preventive, fast, and reliable testing is critical—they need to identify problems before products leave the factory. Diamidex offers exactly that: a unique technology that delivers faster results without compromising regulatory credibility.

Main competitors include Bio-Rad, or Thermofisher which offer PCR based tests. While these methods provide faster results, they often fall short in regulatory acceptance and typically cannot distinguish between live and dead microbes—missing the mark for applications that require precise detection of viable bacteria. In addition, these systems require highly skilled technicians and tightly controlled laboratory conditions to avoid cross-contamination. Their equipment is also costly to maintain, making them significantly more expensive than Diamidex. Diamidex stands out by combining the speed the industry demands with the accuracy and compliance of culture-based testing. Its six patent families protect the core technology and provide a strong competitive moat. Other competitors like IDEXX and Merck offer Enzyme-based tests. Even if these solutions are compliant with culture-based testing, time to results are longer than the one obtained with DIAMIDEX technology. Moreover, with a capacity of 500 analyses per day, Diamidex is the only company capable of meeting customer needs

With over 17,000 tests performed and trusted partnerships, Diamidex has a strong, defensible position. Barriers to entry such as regulatory trust, technical complexity, and long sales cycles provide a competitive edge and reinforce Diamidex’s leadership in this growing market.

Impact

The Sustainable Development Goals (SDGs or 'Global Goals') are part of the UN 2030 Agenda for Sustainable Development and constitute the international framework for sustainable development until 2030. These SDGs are intended to put an end to poverty, inequality, and climate change.

SDG 3


SDG 3: Good Health and Well-being
Diamidex contributes to better public health by enabling faster and more reliable detection of waterborne pathogens such as Legionella and E. coli. Traditional lab methods can take up to 14 days to deliver results, while Diamidex’s technology provides accurate, culture-based results up to five times faster — even detecting E. coli in as little as 6 hours. This allows for earlier interventions, reduces the risk of outbreaks, and helps protect consumers and communities. Diamidex supports safer water use across industries where hygiene is critical, including beverage production and pharmaceuticals. The technology improves early warning systems and contributes to longer, healthier lives through improved water monitoring.

SDG 6

SDG 6: Clean Water and Sanitation
Diamidex empowers industries and laboratories to detect microbial contamination in water quickly and precisely. This helps decision-makers act before contamination spreads, protecting both human health and the environment. By improving the speed and accuracy of water quality control, Diamidex supports safer water infrastructure and helps clients comply with strict regulations. The technology is already in use across Europe, Africa, and Asia, demonstrating its scalability and global relevance. Through its solutions, Diamidex actively contributes to the sustainable management of water systems and enhances access to clean, safe water worldwide.

Management

  

Sam Dukan, Ceo and founder

Dr. Sam Dukan

CEO & Founder 

Dr. Sam Dukan is the founder and CEO of Diamidex and the lead inventor behind its core technology. He holds a PhD in Microbiology and previously led a research group at CNRS (France’s National Scientific Research Centre). With deep expertise in microbial analysis, he has authored numerous scientific publications and patents. Sam combines academic credibility with entrepreneurial vision, guiding Diamidex from R&D to commercialization. As interim Head of Sales, he also leads key client relationships and strategic partnerships. His scientific leadership and cross-functional skills are key to Diamidex’s innovation, development of proprietary technologies, and strong market position.

  

Audrey Dumont, Head of R and D

Dr. Audrey Dumont

Head of R&D

Dr. Audrey Dumont is Head of R&D and a co-inventor of Diamidex’s proprietary technologies. She holds a PhD in Immunology and Microbiology and brings over 15 years of research experience. Audrey leads the scientific team responsible for product development, including the launch of MICA Highlight and new detection targets like E. coli and Pseudomonas. Her strong background ensures rigorous validation, compliance with international standards, and innovation in reagents and detection methods. Audrey’s expertise is critical to maintaining Diamidex’s scientific edge and pipeline of future technologies.

  

David Blandin, Head of operations

David Blandin

Head of Operations

David Blandin oversees production, supply chain, and industrial scalability at Diamidex. A Civil Engineer of Mines with Six Sigma Black Belt certification, David has more than 20 years of experience in operational roles at General Electric, Hewlett-Packard, and Caterpillar. He ensures that Diamidex’s solutions can be manufactured and delivered at scale, with consistent quality and efficiency. His background in large-scale industrial systems supports the company’s transition from prototype to commercial growth. David plays a key role in aligning R&D output with operational execution.

  

Didier Noal, Head of finance and administration

Didier Noel

Head of Finance & Administration

Didier Noel leads finance, administration, and strategic planning at Diamidex. With past roles at Philips, KPMG, and the SATT (Technology Transfer Office), he brings a deep understanding of both corporate finance and startup dynamics. Didier is instrumental in securing funding, managing investor relations, and ensuring financial transparency. He has overseen multiple funding rounds and has built the systems needed for financial forecasting and reporting. His combined expertise in finance, strategy, and innovation ecosystems ensures that Diamidex remains both agile and financially resilient.

Distribution of company shares

Diamidex has a well-balanced and strategically valuable shareholder structure that supports its growth and stability:

  • Sam Dukan (Founder & CEO) – 26.4%
    As the founder and current CEO, Sam Dukan maintains a strong personal stake in the company. His significant ownership ensures long-term commitment and alignment with the company’s vision and success.

  • PureTerra Ventures – 26.5%
    PureTerra is a specialist impact investor in water-related technologies. Their involvement brings not just capital, but also sector expertise, international network access, and credibility—helping to accelerate Diamidex’s growth and scale in global markets.

  • Employees – 8.4%
    The management team and all employees own a significant part of the company, ensuring a sustained and constant involvement of everyone.

  • FI8C and Tita & Co – 5.5%
    These companies are family offices with dedicated investment arms focused on biotechnology startups. In addition to providing capital, they contribute expertise in CapEx sales and entrepreneurship, supporting Diamidex in its growth.

  • Historical and Informal Investors – 33.2%
    This group includes early supporters and business angels who believed in the company's mission from the beginning. Their continued involvement shows sustained confidence in Diamidex’s direction, and they often contribute more than funding—offering valuable guidance, industry connections, and operational advice.

What this means for Diamidex?

This structure combines the best of all worlds: founder drive and vision, professional investment expertise, and broad-based support from engaged angel investors. It gives Diamidex a solid foundation for future financing rounds, strategic decisions, and international expansion—while keeping control and innovation at the core of the business.

Company structure

Company structure

Diamidex is a privately held company incorporated in France in December 2014. Investors will receive equity directly in the parent company, which owns all operations, technology, and intellectual property. The company does not operate through subsidiaries or special-purpose vehicles, ensuring a simple and transparent structure for investors. All revenues from product sales, software usage, and licensing are recognized at the parent company level.

Investment Clarity

  • Investors buy shares in the parent entity (Diamidex, France).
  • All commercial activities (MICA, MICA Highlight, IP, partnerships) are consolidated under this entity.
  • Convertible debt from previous rounds will be converted into equity before this round, further simplifying the cap table.

Use of funds

Diamidex is raising €3.5 million in equity to accelerate commercial expansion, scale operations, and advance product development. The funding will reinforce the company’s market position and boost growth in its high-margin, recurring revenue streams.

The round is anchored by PureTerra Ventures, a leading water-tech and sustainability investor. PureTerra has committed up to €2 million, following in-depth technical, commercial, and financial due diligence. Their investment scales with the total raised, with €500,000 as their minimum investment.


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Minimum Scenario

(€2.5 million)

  • 80% Scaling commercial operations through sales team recruitment, equipment lending to potential clients, and enhanced marketing and communication efforts.
  • 10% Finalize new microbiological solution (E. coli and TVC Soda).
  • 10% Manufacturing & Supply chain scale up (operation staff stock required for certification).

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Medium Scenario

(€3.5 million)

  • 70% Scaling commercial operations through sales team recruitment, equipment lending to potential clients, and enhanced marketing and communication efforts.
  • 10% Finalize new microbiological solution (E. coli and TVC Soda).
  • 10% Certification process (procedure expenses in each country).
  • 10% Manufacturing & supply chain scale up (operation staff stock required for certification).

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Maximum Scenario

(€5.5 million)

  • 60% Scaling commercial operations through sales team recruitment, equipment lending to potential clients, and enhanced marketing and communication efforts.
  • 5% Finalize new microbiological solution (E. coli and TVC Soda).
  • 20% Certification process (procedure expenses in each country).
  • 15% Manufacturing & supply chain scale up (operation staff stock required for certification).


Financial figures & growth

Actual and planned figures

Get an insight into Diamidex's financial figures, such as turnover and earnings development. Learn more about the growth forecast.

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Valuation

Icon Money

Diamidex is currently valued at a €12 million pre-money valuation for this equity round. This figure reflects the company’s progress from deep-tech R&D to post-revenue commercial scale-up, its strong intellectual property portfolio (six patent families), and a strategic partnership with a worldwide proivder of microbiological testing solution.

The valuation is based on a comparables and revenue-multiple approach, taking into account similar early-growth companies in the industrial microbiology and water-tech sectors. A DCF model was considered, but discounted due to the early-stage nature of recurring revenues.
 

The last funding round took place in 2023 and was led by PureTerra Ventures. In the current round, PureTerra returns as an anchor investor with a commitment of up to €2 million. Their investment adjusts based on the total amount raised, with €500,000 as their minimum contribution. This provides strong external validation of Diamidex’s valuation.

All outstanding convertible debt (approximately €1.5 million plus interest), invested by PureTerra in 2024, will be converted into equity before this round, further simplifying the capital structure. This round is offered on a fully diluted basis, ensuring transparency for new investors.

Given Diamidex’s projected growth in recurring revenues and its strong market positioning, the current valuation is considered reasonable and offers attractive upside potential for early investors.


Investor

Type of funding

Year

Amount

1 Indviduals + Rugby Business Angels + SATT Sud-Est

Equity (shares)

2019 €2,122,000
2 Individuals  Equity (shares) 2020 €20,000
3 Family holding x3 (Mahoun + Saportes + Tita&Cie Equity (shares) 2021 €1,100,000
4 New individuals Equity (shares) 2022 €211,000
5 Historical shareholders Shareholder loans 2022 €681,000
6 Pure Terra + Historical shareholders Equity (shares) 2023 €2,359,000
7 Pure Terra Shareholder loans 2024 €1,500,000

Exit scenarios

Diamidex offers a clear path to investor returns through multiple potential exit scenarios. Each option is aligned with the company's growth strategy and designed to provide liquidity while maximizing value. The following outlines the most likely outcomes based on current projections and market dynamics.


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Acquisition (3-5 years): The most likely scenario is that Diamidex will be acquired by a major player in microbiology, diagnostics, or water technology. Global companies like Merck, Bio-Rad, bioMérieux, or other lab solution providers may see value in adding Diamidex’s proprietary technology and product portfolio to their offering. The target timeline for such an acquisition is within 3 to 5 years, in line with the planned exit by 2028.

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Follow-on investment or Buy-out (1-2 years): Once Diamidex generates steady yearly revenues of €1–2 million or more, a new investment round or full buyout by a larger investment fund is possible. This would give early investors a chance to cash out, while providing the company with resources to fuel its next phase of growth. This scenario is likely around 2026–2027, after key commercial goals have been reached.

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IPO (4+ years): Although going public is not the main strategy, an IPO could be considered if Diamidex grows faster than expected and strengthens its market position. Listing on a growth-focused exchange like Euronext Growth would offer increased visibility and give investors a way to sell their shares. This option would be considered after 2028, depending on the company’s performance and market conditions.


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FAQ

Below you will find answers to some of the most frequently asked questions.

If you have additional questions, feel free to reach out through our customer support.

Although Invesdor typically focuses on companies from the Nordics, DACH, and the Benelux we are presenting Diamidex due to the strong partnership with the Dutch PureTerra Ventures which have a strong market presence in France. This expertise gives us confidence in the feasibility and growth potential of the company. We also believe in cross-European investment opportunities and aim to offer such promising ventures to our investors whenever they arise. 

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