SIGNIUS

What SIGNIUS does

SIGNIUS S.A. is a Poland-based provider of eIDAS-compliant electronic trust services, operating since 2019 with founders active in electronic signatures, PKI, and digital identity since 2009 through predecessor entity Esysco. The company delivers a portfolio of electronic signature, qualified electronic seal, timestamping, and KYC identity verification products through a unified platform architecture supporting SaaS (Professional), on-premise (Enterprise), desktop (Harmony), and API-integrated (for Business) deployment models. Qualified signatures are issued through partnership with EuroCert, a certified trust service provider, with GlobalSign added as a second TSP for the qualified seal product. Identity verification combines video verification with the IDnow AutoIdent automated workflow (document photo analysis, selfie comparison, liveness detection), and the platform supports eIDAS, GDPR, KYC, AML, KNF, DORA, and WCAG compliance frameworks.

The company serves three primary customer segments: large organizations and corporations (banks, governments, enterprises requiring on-premise deployment and regulatory compliance), SMBs seeking digitized document workflows, and freelancers/individuals needing affordable electronic signatures. Enterprise revenue is generated through tailor-made on-premise implementations (one-time license plus services), while SMB and individual revenue comes through subscription plans (Business and Business PRO), pay-as-you-go signature packages starting at 15 EUR, and a freemium tier offering 10 free advanced signatures. SIGNIUS distributes through multiple channels including self-serve SaaS (12 languages), enterprise field sales (with VP Sales Jack Piekarski based in Berlin for DACH coverage), technology partner network (WEBCON, HRobots, Gavdi Poland, DMS providers), and its own e-commerce storefront (SIGNIUS Shop) selling voucher-based signature packages.

The company is privately held by its three co-founders (CEO Bartosz Witkowski, VP Sales Jack Piekarski, CTO Marcin Bartosiewicz) with no disclosed institutional investors or external funding rounds. Operating geographies span Poland and Germany with platform availability across the EU, supported by offices in Poznań (HQ), Berlin (sales), and Warsaw (engineering). Named enterprise customers include Orange, Verimi, Grenke, Medallia, and Mondi, while partner-integrated reach extends into HR technology platforms serving downstream SMB customers.

Name

SIGNIUS

Legal name

SIGNIUS S.A.

Website

https://signius.eu

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

11–50 employees

Short description

SIGNIUS S.A. is a Poland-based eIDAS-compliant electronic trust services platform providing qualified electronic signatures, seals, timestamping, and KYC identity verification for European enterprises, SMBs, and individuals across 12 languages via SaaS, on-premise, API, and partner channels.

Ownership category

akta.pro rank

Product category

Electronic Signature and Trust Services

akta.pro primary industry

Single Sign-On (SSO) & Federation (BPAMAEAF)

Keywords

• Electronic signature platform
• EIDAS trust services
• Qualified electronic seal
• KYC identity verification
• Digital signature API

Headquarters

HQ city

Poznan

HQ country

Poland

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B and B2C

Offering type

Software

Cost components

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

Revenue model

1. Signature Packages: One-time and recurring purchases of electronic signature packages (advanced and qualified signatures). Pay-as-you-go option for occasional use starting at 15 EUR per package, with subscription plans available for higher volume users.
2. Platform Subscriptions: Business Customer Account subscriptions (Business and Business PRO plans) with features like admin controls, team management, custom document storage rules, and the Approver role functionality. Auto-renewal at end of term.
3. API and Integration Services: API integration services for business customers wanting to embed signing capabilities into their internal systems. Charges may apply for integration and custom implementations.
4. Identity Verification: KYC identity verification service included in qualified signature packages, or available separately. AutoIdent verification provides 24/7 self-service onboarding.
5. Enterprise On-Premise Solutions: Tailor-made SIGNIUS Enterprise implementations built locally (on-premise) for large organizations with custom requirements including KYC, AML, and KNF compliance.

Pricing tiers

Go-to-market motion4 records

Distribution channels7 records

Marketing channels8 records

Core offering

SIGNIUS provides eIDAS-compliant electronic trust services including electronic signatures (advanced and qualified), qualified electronic seals, time stamping, and KYC identity verification. Offerings span a self-serve SaaS platform (SIGNIUS Professional), on-premise enterprise implementations (SIGNIUS Enterprise), a desktop app (SIGNIUS Harmony), developer APIs, and a freemium-to-subscription model with signature packages starting at 15 EUR.

Product overview

SIGNIUS is a digital signature and identity verification platform offering a portfolio of solutions for electronic document signing, automated sealing, and digital KYC identity verification. The core product suite consists of SIGNIUS Professional (cloud-based online signing platform), SIGNIUS Enterprise (on-premise server solutions for large organizations), and SIGNIUS Harmony (desktop application integrating with popular programs like Word, Excel, and Adobe Acrobat). These signing solutions are complemented by SIGNIUS Seal (qualified electronic seal for mass document sealing), SIGNIUS Time (timestamping service), and SIGNIUS Ident (self-service KYC identity verification platform). The SIGNIUS for Business offering provides API integration capabilities for embedding signing into customer systems. All services comply with eIDAS regulation and EU data protection standards, with qualified signatures issued through EuroCert certification centre.

Differentiator

Problem solved

Functional benefit

Brands

• SIGNIUS Professional: Online platform for fast and professional document signing with advanced and qualified electronic signatures.
• SIGNIUS Enterprise
• SIGNIUS Harmony
• SIGNIUS Seal
• SIGNIUS Time
• SIGNIUS Ident

Products and services

• SIGNIUS Professional Online SaaS platform for fast and professional document signing. Supports advanced and qualified electronic signatures with remote identity verification. Users can sign documents in one minute from any device with identity verification via video-call or selfie check. Targets SMBs, freelancers, and individuals globally with 12-language support.
• SIGNIUS Enterprise Secure, comprehensive on-premise solution for large enterprises, corporations, banks, and governments. Includes advanced signatures with KYC identification, qualified signatures, remote contract management, and remote identification compliant with eIDAS, KYC, AML, and KNF requirements. Implemented locally within customer infrastructure.
• SIGNIUS Harmony Desktop application for signing documents directly from Word, Excel, Adobe Acrobat, and other popular programs. Supports Windows, Mac, and Linux systems, allowing users to sign documents from within their everyday applications.
• SIGNIUS Seal Qualified electronic seal - digital equivalent of a company stamp that can seal thousands of documents at once. Built on the GlobalSign partnership for eIDAS compliance. Ideal for legal entities including public limited companies, public institutions, and limited liability companies.
• SIGNIUS Time Time stamp service providing proof of the exact time at which an electronic signature was affixed. Guarantees complete legal security and protects against fraud by ensuring document integrity.
• SIGNIUS Ident

Quantifiable outcome

• Document signing in 1 minute with one account
• +3 more outcomes

Named customers7 records

Segments10 records

Ideal customer profiles8 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

AI capability5 records

Feature9 records

Partnerships

Three partnerships are on record, tiered core.

• IDnowcoreTechnology or Integration · 1 October 2025IDnow provides AutoIdent - an automated identity verification method integrated into SIGNIUS. Uses automated image recognition to confirm user identity within minutes through document photos and selfie video (liveness check). Available 24/7 via browser or mobile app.
• GlobalSigncoreTechnology or Integration · 1 June 2024Partnership for eIDAS-compliant qualified electronic seal. The cryptographic seal guarantees document origin (authenticity), integrity, and protection against manipulation, with GlobalSign providing the underlying certificate infrastructure.
• EuroCertcoreTechnology or IntegrationEuroCert is the certified trust service provider providing qualified certificates for electronic signatures on the SIGNIUS platform. As a qualified trust service provider, EuroCert issues certificates that enable qualified electronic signatures with legal force equivalent to handwritten signatures across the EU.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• DocuSign: Global leader in electronic signature and contract lifecycle management. Direct competitor to SIGNIUS Professional and Enterprise for advanced and qualified e-signature deals across the EU, including in regulated industries where SIGNIUS focuses.
• eversign: Smaller global e-signature SaaS offering self-serve and API tiers similar to SIGNIUS Professional and for Business. Comparable on PLG motion, multilingual support, and developer-friendly API positioning.
• Adobe Acrobat Sign: Adobe's e-signature product bundled with Acrobat and Adobe Document Cloud. Competes head-to-head with SIGNIUS in document signing workflows, including integrations with Office 365 and enterprise identity providers.
• Dropbox Sign (HelloSign): Dropbox-owned e-signature platform targeting SMBs and mid-market with API-first design. Direct competitor to SIGNIUS for self-serve and embedded signing use cases, particularly for API-driven integrations.

Regional players

• Verimi: German digital identity and e-signature platform with strong DACH presence and listed among SIGNIUS customers. Comparable focus on qualified signatures and identity verification for regulated European use cases, primarily Germany-centric.
• Asseco Poland: Large Polish IT group with significant footprint in banking and public-sector software across Central Europe. Competes regionally with SIGNIUS Enterprise for on-premise signing and digital identity deployments in Polish and CEE enterprises.

Emerging players

• Skribble: Swiss-headquartered e-signature provider focused on eIDAS-compliant qualified signatures across DACH and broader EU. Comparable mid-market positioning and similar qualified signature offering targeting European regulated industries.
• IDnow: European identity verification provider whose AutoIdent product is integrated into SIGNIUS. Also offers standalone KYC/AML onboarding that overlaps with SIGNIUS Ident, making it both a partner and a partial competitor in identity verification.
• Yousign: French eIDAS-compliant e-signature platform expanding across Europe with both self-serve and API offerings. Comparable product-led growth and qualified signature positioning for European SMBs and mid-market.

Broad incumbents

• GlobalSign: Established digital certificate authority and trust services provider that supplies qualified certificate infrastructure to SIGNIUS. Also offers its own e-signature and identity solutions, making it both a partner and a broader incumbent in the trust services category.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks1 record

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCcebDxhcY3dlkQ-ANP_feOQ/featured
• Facebookfacebook.com/people/SIGNIUS/100063792979836
• LinkedInlinkedin.com/company/signiussa

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 SIGNIUS