What SERES does

SERES (Sociedad de Explotación de Redes Electrónicas y Servicios S.A.) is a Madrid-headquartered provider of electronic document interchange (EDI), electronic invoicing, and business process automation solutions, operating as a wholly-owned subsidiary of French digital services group DOCAPOSTE within La Poste. Founded in the mid-1990s, the company has built a platform-plus-modules architecture centered on e-Factura (electronic invoicing), a proprietary EDI value-added network with 200,000+ connection points, and the CONNECT cloud platform, augmented by Source to Pay (S2P), Order to Cash (O2C), Contralia (eIDAS-compliant electronic signature), fiscal reporting modules (SII, TicketBAI, SILICIE, Verifactu), electronic payroll (Nómina Electrónica), and a PEPPOL access point. SERES is a certified e-invoicing provider for tax authorities in seven countries (Spain, Portugal, Colombia, Mexico, Peru, Ecuador, Argentina) and integrates natively with ten-plus ERP systems including SAP, Oracle, Salesforce, Sage, Microsoft Dynamics, NetSuite, and Infor.

The company generates revenue through a mix of subscription fees (S2P/O2C platform licensing, digital signature subscriptions), transaction-based fees (per-document EDI interchange, per-signature fees), and enterprise custom pricing. It serves three primary customer segments — large enterprises, SMEs, and government/public administration — with named customers spanning food & beverage (Nestlé, La Fabril), manufacturing (Siemens Gamesa), energy/shipping (Hapag Lloyd), automotive (Hyundai, Cemex), retail (Linio, Avon), banking (Banco Pichincha), travel (Amadeus), and healthcare (MetroSalud). The go-to-market is hybrid: direct sales with dedicated account managers for enterprise accounts, partner-led distribution through certified ERP integrators and regional channel partners in Iberia and LATAM, and self-service portals (SERES CONNECT, e-Factura, SERESNET) for SMEs.

SERES reports 8,000+ customers in Spain, 3 million active companies on its network, 300+ professionals, and processes €1B+ in transaction volume annually across 113 countries. The business is operated through branch offices in Madrid (HQ), Lisbon, Bogotá, and other LATAM locations. As a DOCAPOSTE subsidiary, SERES is not separately listed and does not disclose standalone revenue or funding rounds in the available data.

Name

SERES

Legal name

Sociedad de Explotación de Redes Electrónicas y Servicios S.A.

Website

https://groupseres.com

Company type

Private

Founded year

1994

Operating status

Operating

Headcount range

101–250 employees

Short description

SERES is a Madrid-based subsidiary of French digital group DOCAPOSTE providing electronic document interchange, electronic invoicing, eIDAS digital signature, and Source-to-Pay/Order-to-Cash automation to enterprises, SMEs, and governments across Spain, Portugal, and Latin America.

Ownership category

akta.pro rank

Product category

Electronic Document Interchange and E-Invoicing Platform

NAICS

Software Publishers (5132), Software Publishers (513210), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (51821)

SIC

Services-Computer Programming Services (7371), Services-Computer Programming, Data Processing, Etc. (7370), Services-Computer Processing & Data Preparation (7374)

akta.pro primary industry

E-Invoicing & Invoice Presentment (B2B/B2G) (FSAMAJAF)

akta.pro secondary industries

OCR, ICR & Intelligent Document Processing (IDP) (BPAAAKAB), IP Management, Patents & Trademark Software (BPAEAPAN)

Keywords

• Electronic invoicing solutions
• Electronic data interchange
• Digital signature services
• Procurement automation software
• Tax compliance platform

Headquarters

HQ city

Madrid

HQ country

Spain

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Electronic Invoicing Services: Subscription and transaction-based fees for electronic invoice exchange, validation, and transmission services across multiple countries
2. EDI Services: Document interchange fees based on transaction volume for EDI network connectivity
3. Digital Signature (Contralia): Per-signature and subscription fees for electronic signature services with legal validity
4. Source to Pay/Order to Cash Solutions: Platform licensing and implementation fees for procurement and order management solutions

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels6 records

Core offering

SERES provides a cloud-based electronic document interchange platform delivering electronic invoicing (e-Factura), EDI document exchange over its own value-added network, Source-to-Pay and Order-to-Cash process automation, and eIDAS-compliant digital signatures (Contralia). The platform connects more than 200,000 companies across 113 countries, integrates with major ERP systems, and is certified by tax authorities in seven countries. It serves B2B and B2G document exchange for enterprises, SMEs, and public administrations, with annual transaction volume exceeding €1,000 million and over 8,000 customers in Spain alone.

Product overview

SERES is a digital transformation platform offering a comprehensive suite of electronic document exchange and financial process automation solutions. The portfolio is built around a platform-plus-modules architecture centered on e-Factura (electronic invoicing), EDI (electronic data interchange), and the CONNECT platform. Supporting modules include Source to Pay (S2P) for procurement and accounts payable, Order to Cash (O2C) for sales and accounts receivable, Contralia for electronic signature with eIDAS compliance, Fiscal Reporting solutions (SII, TicketBAI, SILICIE), Nómina Electrónica for electronic payroll, Track2Pay for invoice tracking, and a Multi-country solution for cross-border compliance. SERES connects over 200,000 companies and supports transactions across 113 countries, enabling B2B and B2G document exchange with integration to major ERP systems including SAP, Oracle, Salesforce, Sage, and Microsoft Dynamics.

Differentiator

Problem solved

Functional benefit

Brands

• Contralia: Digital signature solution with full legal validity, automating, simplifying and improving document signing processes.
• e-Factura
• SERES CONNECT

Products and services

• e-Factura (Electronic Invoicing) Cloud-based electronic invoice platform enabling issuance, reception, exchange, automated matching, validation, and real-time tracking of electronic invoices in compliance with country-specific tax authorities (FACE, DIAN, SRI, SAT, etc.) across Spain and international markets.
• EDI (Electronic Data Interchange) International standard electronic document exchange service (invoices, purchase orders, dispatch notices) connecting businesses with retail, automotive, healthcare, and public administration partners through SERES' value-added network of more than 200,000 companies.
• Source to Pay (S2P) Integrated procurement management solution covering the full purchasing cycle from supplier management to accounts payable, including sourcing, approval workflows, and payment processing for enterprise customers.
• Order to Cash (O2C) Comprehensive sales process management solution encompassing customer management, credit risk assessment, and accounts receivable automation from order intake through collection, integrated with invoicing.
• Contralia (Electronic Signature) Advanced electronic signature solution with full legal validity under eIDAS regulation (EU No 910/2014), enabling automation and simplification of document signing processes from any device, with SERES acting as a qualified trusted third party for digital signature custody.
• Reporte Fiscal (Fiscal Reporting) Digital tax reporting solutions including SII (Suministro Inmediato de Información), TicketBAI, Verifactu, and SILICIE for compliance with Spanish and regional fiscal requirements related to VAT and special taxes.
• Solución Multipaís (Multi-Country Solution) Multi-country electronic invoice and fiscal reporting solution enabling companies to manage cross-border compliance across different countries (Spain, Portugal, Mexico, Colombia, Ecuador, Peru, Argentina) from a single SERES platform.
• CONNECT Platform (SERESNET) Unified cloud platform for managing all purchasing and sales processes, including supplier management, document exchange, invoice handling, and payment tracking, with real-time business visibility accessible via the SERESNET portal.

Quantifiable outcome

• Reduces invoice processing time from 9 minutes to 2.5 minutes
• +2 more outcomes

Named customers12 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration13 records

Feature5 records

Partnerships

Eight partnerships are on record, tiered core.

• SAPcoreTechnology or IntegrationCertified integration partnership enabling seamless connectivity between SERES document exchange platform and SAP ERP systems for customers using SAP infrastructure
• OraclecoreTechnology or IntegrationIntegration partnership providing connectivity between SERES solutions and Oracle ERP platforms for electronic document interchange
• SalesforcecoreTechnology or IntegrationCertified integration enabling SERES document exchange within Salesforce ecosystem for customer relationship management workflows
• SagecoreTechnology or IntegrationIntegration partnership connecting SERES electronic invoicing with Sage accounting software solutions
• Microsoft DynamicscoreTechnology or IntegrationCertified integration for Microsoft Dynamics 365 and NAV ERP systems with SERES document exchange platform
• DocapostecoreStrategic or Co-development PartnerParent company of SERES providing strategic direction, technology resources, and cross-selling opportunities within the French digital services group
• SAT (Servicio de Administración Tributaria Mexico)coreOthersOfficial certification for CFDI electronic invoice validation in Mexico
• DIAN (Dirección de Impuestos y Aduanas Nacionales Colombia)coreOthersOfficial authorization for electronic invoicing under resolution 5349 in Colombia

Scale indicators8 records

Recent moves9 records

Expansion highlights5 records

Direct peers

• Sovos: Global leader in continuous regulatory compliance and e-invoicing — directly comparable product set (e-invoicing, tax reporting, EDI) with stronger North American footprint but similar enterprise positioning.
• TrueCommerce: Global EDI network and managed services provider — comparable in VAN-style EDI connectivity, ERP integration breadth, and multi-tier retailer/automotive customer base.
• EDICOM: Spain-headquartered e-invoicing, EDI, and tax compliance provider with deep LATAM presence and similar multi-country tax authority authorizations — closest functional competitor on geography, product surface, and go-to-market.
• Basware (Opus Group): Accounts payable automation and Purchase-to-Pay platform with strong European roots — competes head-to-head with SERES's S2P and e-invoicing modules in the mid-market and enterprise segments.
• Esker: Order-to-Cash and P2P cloud automation vendor — direct competitor on SERES's O2C and invoice automation modules, particularly for mid-market European enterprise customers.
• Pagero: PEPPOL access point and global e-invoicing / e-order network operator (now part of Apex Group) — directly comparable in PEPPOL access point certification, document exchange network, and ERP integration model.

Broad incumbents

• SAP Business Network (formerly Ariba Network): SAP's B2B transaction and supplier network — a strategic partner of SERES today but also the principal ecosystem risk, offering EDI/invoicing natively to the installed SAP base.
• OpenText (B2B/GXS): Large incumbent with B2B integration, EDI, and managed services — overlaps SERES's EDI VAN and document exchange within a much broader enterprise content management portfolio.
• IBM Sterling Supply Chain: IBM's B2B integration / EDI platform — competes in retail and automotive EDI under a much broader hybrid cloud and supply chain software franchise.

Emerging players

• TrustWeaver: Cross-border e-invoicing compliance and legal validity infrastructure provider — narrower than SERES's stack but competes for the compliance / PEPPOL certification layer on multi-country rollouts.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/SERES_es
• YouTubeyoutube.com/@groupseres
• LinkedInlinkedin.com/company/seres-grupo-la-poste-

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries2 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 SERES