Seitiss

What Seitiss does

Seitiss is a French circular economy company, established as a subsidiary of Strane Innovation and headquartered in Gif-sur-Yvette in the Paris region. The firm operates an industrial symbiosis platform built around proprietary algorithms and a database covering more than 33,000 industrial sites, which is used to match waste-resource outputs at one site with alternative raw material requirements at another. Its core service offering is a two-step engagement: an initial synergy study that prototypes resource exchanges for an industrial client, followed by the turnkey creation and managed operation of the resulting circular economy sector, including transport subcontracting, quality monitoring, traceability and administrative management, delivered as a single point of contact.

The portfolio spans services and a physical product. Services include waste diagnostics and synergy identification for industrial platforms (notably CHEMESIS at Carling-Saint Avold), port and territorial flow inventories (Grand Port de Saint-Nazaire), and dedicated end-of-life infrastructure projects such as the glass insulator recycling initiative with RTE, Enedis, SNCF Réseau and Sediver. The physical product, HydroFer Active, is an iron-rich material derived from water-treatment residuals, sold in 25-30 tonne bulk bins from regional platforms across France for H2S abatement in biogas, dephosphatation in wastewater, odor control and suspended solids capture, with stated savings of more than 50% versus conventional chemical treatments.

The business model is a mix of professional services (circular economy consulting, advanced studies), managed services (turnkey sector operation with a single point of contact) and unit-priced hardware sales (HydroFer Active). Go-to-market is enterprise field sales into industrial sites, territories/municipalities and industrial clusters across France, supplemented by an order/quote workflow on the website for HydroFer Active. The firm also participates in EU Horizon 2020 projects (NEXTGEND, EPOS, SCALER, ULTIMATE, BIZEOLCAT, Aquaspice) and market channels via LinkedIn, Twitter, Telegram, earned media and webinars with partners such as Nobatek Inef 4.

Name

Seitiss

Legal name

Seitiss

Website

https://seitiss.com

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

1–10 employees

Short description

Seitiss is a French circular economy subsidiary of Strane Innovation that uses proprietary algorithms and a 33,000+ industrial site database to match waste streams with reuse opportunities. It serves industrial sites, territories and clusters via turnkey sector creation and sells its HydroFer Active iron byproduct.

Ownership category

akta.pro rank

Product category

Circular Economy & Industrial Waste Management

NAICS

Waste Management and Remediation Services (562), Other Chemical and Allied Products Merchant Wholesalers (42469)

SIC

Wholesale-Chemicals & Allied Products (5160)

akta.pro primary industry

Industrial Symbiosis & Byproduct Exchange Platforms (EUAIANAG)

akta.pro secondary industry

Monitoring & Control (Dosing Systems, Remote Monitoring, Sensors) (BPABAJAK)

Keywords

• Industrial symbiosis services
• Circular economy consulting
• Waste valorization solutions
• Industrial waste matching
• Recycled material supply

Headquarters

HQ city

Gif-sur-yvette

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Supply Chain

Revenue model

1. Circular Economy Consulting and Sector Creation: Advanced studies to prototype synergies for clients before establishing permanent sectors. Services include chemical analysis, synergy identification, partner matching, and sector creation.
2. Sector Management Services: Turnkey management of circular economy sectors including transport subcontracting, quality monitoring, traceability, and administrative management with a single point of contact.
3. HydroFer Active Product Sales: Sale of HydroFer Active, a circular economy product derived from water treatment residuals. Delivered in bulk bins of 25-30 tonnes from regional platforms across France.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

Seitiss identifies industrial symbiosis synergies between industrial sites using proprietary matching algorithms over a database of more than 33,000 industrial sites, then creates and operates turnkey circular economy sectors covering transport, treatment, quality monitoring, traceability, and administrative management. The company also sells HydroFer Active, an iron-based product derived from water treatment residuals used for H2S removal in biogas, dephosphatation, odor control, and suspended solids capture.

Product overview

Seitiss operates as a circular economy solutions provider offering both products and services. Its core product is HydroFer Active, an iron-based material derived from industrial waste streams used in water treatment applications. The company also provides comprehensive industrial symbiosis services including digital matching tools powered by proprietary correspondence algorithms to connect waste producers with potential users across its database of over 33,000 industrial sites. Services encompass synergy studies, operational and technical assembly of new value chains, transport logistics, quality monitoring, and administrative management. The Recycalc sub-product handles exploitation management for specific circular economy solutions.

Differentiator

Problem solved

Functional benefit

Brands

• HydroFer Active: A circular economy solution product used for biogas production (H2S abatement), sanitation (dephosphatation, odor control, suspended matter capture). Contains 25-35% iron content derived from circular economy processes, replacing chemical products.
• Recycalc

Products and services

• HydroFer Active

Quantifiable outcome

• >50% cost savings compared to conventional chemical products (HydroFer Active)
• +3 more outcomes

Named customers6 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability1 record

Feature2 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• AquaMineralscoreStrategic or Co-development Partner · 3 March 2022Dutch company with 25+ years of experience in water sector residual recycling. Partnership aims to give second life to residues from water production in France through upcycling.
• Allied WaterscoreStrategic or Co-development Partner · 3 March 2022Innovation center focused on transformation toward circular economy. Partner for developing new upcycling solutions and allocating research and innovation funding.
• RTEcoreStrategic or Co-development PartnerFrench electricity transmission network operator. Partnership for complete relocation of steel valorization sectors and development of glass insulator recycling solutions.
• EnediscoreStrategic or Co-development PartnerFrench electricity distribution network operator. Partnership for optimal recycling of glass insulators from power distribution infrastructure.
• SNCF RéseaucoreStrategic or Co-development PartnerFrench national railway network operator. Partnership for recycling of glass insulators from rail power lines.
• SediverminorStrategic or Co-development PartnerGlass insulator manufacturer. Partnership for recycling optimal project of glass insulators from electrical lines.
• CHEMESIScoreStrategic or Co-development PartnerChemical platform at Carling-Saint Avold in Grand-Est region, composed of 11 energy and chemical industries. Waste diagnosis and circular economy project launched in 2020.
• Grand Port de Saint-NazairecoreStrategic or Co-development PartnerMajor port of Saint-Nazaire. Partnership for comprehensive inventory of material flows on the port zone and circular economy opportunity analysis.
• Nobatek Inef 4minorGTM or Marketing PartnerPrivate applied research center and national institute for energy transition in buildings. Co-participation in webinars on alternative construction materials.
• H2020 European Projects (NEXTGEND, EPOS, SCALER, ULTIMATE, BIZEOLCAT, Aquaspice)minorStrategic or Co-development PartnerEuropean Horizon 2020 research and innovation projects contributing to circular economy development across Europe.

Scale indicators4 records

Recent moves7 records

Expansion highlights5 records

Others

• Sediver: Manufacturer of glass and composite insulators for electrical grids and a Seitiss partner in the glass-insulator recycling program with RTE/Enedis/SNCF. Adjacent ecosystem participant rather than a direct competitor, but tightly coupled to Seitiss's recycling value chain.
• Closed Loop Partners: US-based investment firm and venture platform building circular-economy infrastructure (recycling, reuse, composting). Adjacent to Seitiss as an enabler/financier of circular-economy projects and supply chains rather than a direct service competitor.

Broad incumbents

• PreZero: European environmental-services and recycling platform (Schwarz Group) operating collection, sorting and recycling across multiple countries. Comparable to Seitiss as a scaled player in industrial waste valorization and circular material flows.
• Suez: Major French and global water and waste-management player offering industrial circular-economy and resource-recovery services. Already a Seitiss reference customer, illustrating overlap in industrial symbiosis between the two firms.
• Veolia: Global waste-management and resource-recovery major with extensive industrial-symbiosis and circular-economy offerings in France. Directly relevant as a large competitor/partner to Seitiss in byproduct valorization and industrial-site waste services.

Direct peers

• Anthesis Group: Global sustainability consultancy advising corporates on circularity, waste valorization and resource efficiency. Comparable to Seitiss as a services-led player that helps industrial clients identify and operationalize circular-economy opportunities.
• Metabolic: Dutch consultancy building data-driven tools and assessments for circular-economy implementation across industrial value chains. Directly comparable to Seitiss as a digital-enabled circular-economy advisor using flow-matching and resource analytics.
• Circle Economy: Amsterdam-based circular-economy foundation operating the Circularity Gap Reporting framework and advising governments and industries on resource-loop design. Comparable to Seitiss in mapping industrial material flows and recommending symbiosis interventions.

Regional players

• Ragn-Sells: Swedish environmental services company with strong Nordic footprint in industrial waste treatment, recycling and circular-economy solutions. Comparable to Seitiss in industrial-resource recovery, though operating primarily in the Nordics rather than France.

Emerging players

• iPoint: German software provider for circular economy, compliance and material-flow management, including product/chemical compliance and take-back systems. Comparable to Seitiss as a software-led player targeting industrial material flows and circularity data.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xtwitter.com/Strane_Innov
• LinkedInlinkedin.com/company/seitiss

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Seitiss