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Qualified Electronic Signature & E-Seal Services by Certum in Warsaw

Qualified Electronic Signature & E-Seal Services by Certum in Warsaw

In the modern global economy, speed, security, and digital integration are the pillars of business success. Whether you are an international investor entering the Polish market, a local entrepreneur managing a growing team, or a board member of a large corporation, the ability to authenticate documents remotely with full legal validity is no longer optional—it is a requirement.

Lex Corporation, located in the heart of Warsaw, serves as a premier Authorized Partner Point for Certum by Asseco Data Systems S.A. We bridge the gap between complex cryptographic technology and practical business application. As a leading consultancy, we don’t just sell tools; we provide the infrastructure for your digital transformation.


Why Lex Corporation is Your Trusted Certum Partner in Warsaw

Choosing where to obtain your Qualified Electronic Signature (QES) or Electronic Seal (e-Seal) is a decision that impacts your company’s operational security. As an authorized Certum Partner Point, Lex Corporation offers a specialized environment designed for professionals.

Our Location and Accessibility

Our office is strategically situated at Krucza 16/22, suite 411, 00-526 Warsaw. This central location makes us easily accessible for business owners operating in the capital’s financial and administrative districts.


Core Services: Identity Verification and Activation

The most critical step in obtaining a qualified digital tool is Identity Verification. Under EU law (eIDAS), a qualified certificate can only be issued after a trusted official confirms your identity in person.

1. Qualified Electronic Signature (QES)

A QES is the digital equivalent of a handwritten signature. It is legally binding across all EU member states and is essential for:

  • KRS (National Court Register): Submitting annual financial statements.
  • ZUS & Tax Office: Signing social security declarations and tax returns.
  • Civil Contracts: Signing B2B agreements, employment contracts, and NDAs.

2. SimplySign – The Cloud-Based Revolution

As a Certum Partner, we specialize in SimplySign, Poland’s first “mobile” signature.

  • No Hardware: No more carrying USB readers or crypto-cards.
  • Full Mobility: Sign documents on your smartphone, tablet, or laptop using an encrypted cloud connection.
  • Instant Activation: We verify your identity at our Krucza office, and your SimplySign account is activated immediately.

3. Qualified Electronic Seal (e-Seal)

While a signature represents a person, an Electronic Seal represents your company (legal entity). This is the “digital corporate stamp” of the future.

  • KSeF Readiness: Essential for the mandatory National e-Invoicing System (KSeF).
  • Automation: Allows your software to automatically sign thousands of invoices without a human board member having to sign each one individually.
  • Corporate Identity: Ensures the integrity and origin of company documents, reports, and official correspondence.

The Strategic Importance of the Electronic Seal in 2026

With the full implementation of the National e-Invoicing System (KSeF) in 2026, the Electronic Seal has become a vital asset for any Polish company. Using a seal issued by Certum via Lex Corporation allows your business to authenticate itself in the KSeF portal without delegating personal signing rights to specific employees. This minimizes risk and maximizes administrative efficiency.


How the Process Works at Lex Corporation

We have streamlined the path to digital authentication into three efficient steps:

Step 1: Selection and Purchase

You can choose your preferred Certum set (1, 2, or 3-year validity) directly through our consultancy or via the Certum online store. If you are unsure which tool fits your needs—SimplySign vs. a physical card—our experts will provide a professional consultation.

Step 2: Appointment and Verification

Visit our Warsaw office at Krucza 16/22. You must bring a valid ID (National ID card or Passport).

Note: Identity verification is a value-added service performed by our certified personnel and is subject to additional fees according to partner rates.

Step 3: Activation and Training

Once your identity is verified, we assist with the technical activation of your certificate. We ensure your proCertum SmartSign software is configured correctly and show you how to sign your first PDF or XML file.


Frequently Asked Questions (FAQ)

1. Can a foreigner obtain an electronic signature in Warsaw?

Yes. At Lex Corporation, we specialize in assisting international clients. You do not need a Polish PESEL number to obtain a qualified signature; we can issue the certificate based on your valid passport. This is a common solution for foreign board members of Polish companies.

2. What is the difference between a signature and a seal?

A signature is linked to a natural person (e.g., John Smith) and represents a declaration of will. A seal is linked to a legal entity (e.g., Lex Corp Sp. z o.o.) and confirms the origin and integrity of the document.

3. How long does the verification take?

When you visit our office with a prior appointment, the verification process typically takes 15 to 30 minutes.

4. Is SimplySign secure for high-value contracts?

Absolutely. SimplySign uses multi-factor authentication and is fully compliant with the eIDAS regulation. It provides the highest level of security available in the European Union.

5. Can I use my signature for the National e-Invoicing System (KSeF)?

Yes, you can use a qualified signature. However, for companies with high invoice volumes, we strongly recommend the Qualified Electronic Seal, as it allows for automated system-to-system communication without manual signing.

6. Do I need to book an appointment?

To ensure the best service and minimal waiting time, we recommend calling us at +48 514 302 221 to schedule your visit.


Professional Support Beyond the Signature

Lex Corporation is not just a technical point; we are a comprehensive business consultancy. Our team of Polish lawyers, accountants, and HR specialists understands why you need these tools.

Whether you need to register a new company, manage relocation for your staff, or ensure your business is fully compliant with Polish tax laws, we provide the end-to-end support you need to succeed in Warsaw.

Contact Us Today

Don’t let paper-based bureaucracy slow down your growth. Secure your digital future with a Certum Qualified Signature or Seal.

  • Visit us: Krucza 16/22, lokal 411, Warsaw
  • Call us: +48 514 302 221
  • Email: info@lexcorporation.pl
  • Web: lexcorporation.pl

Our office is strategically situated at Krucza 16/22, suite 411, 00-526 Warsaw. This central location makes us easily accessible for business owners operating in the capital’s financial and administrative districts.

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