4,7Thank you to ONE PLUS for professional help with obtaining my karta pobytu. Special thanks to Tatiana for competent support at every stage. Reliable legal assistance in Poland. Highly recommend!
About ONE PLUS
For over 10 years, we have been helping foreigners legalize their stay, handle documents, and open a business in Poland. During this time, we have guided thousands of clients from different countries — from the first consultation to receiving ready documents and successfully launching a business.
Every case is handled by a qualified specialist personally — we never pass cases to intermediaries. We interact with government authorities daily and monitor changes in legislation, finding effective solutions even in complex situations.
Over the years, we have employed over 8,000 foreigners and completed projects with a turnover exceeding 30 million zloty.
Our goal is not just to process paperwork, but to find the optimal solution for your specific situation: quickly, legally, and without unnecessary stress.
- Personal and professional approach to every client and case
- Full legal support from consultation to document receipt
- Guaranteed confidentiality and transparency at every stage
- Deep knowledge of Polish law and years of successful practice
30+ mln
Revenue in PLN
30+ mln
Revenue in PLN
Publicly available data
CheckYou can verify our company online and check the statistics yourself.
15.000+
Satisfied clients
15.000+
Satisfied clients
98% of our clients return for additional services and recommend us to their friends.
7 years
Сompany operation
7 years
Сompany operation
For many years, we have been helping foreigners and businesses in Poland.
11 years
Experience
11 years
Experience
You can be sure that certified experts are handling your case.
Meet us!
Trust, professionalism, and care for every client are the foundation of our work.
Our team consists of certified lawyers with Polish legal education and experience in legalization. Here you work with real specialists, not intermediaries or bloggers who resell someone else’s services.
We continuously monitor changes in legislation to always offer the most relevant and effective solution for your situation.
We value long-term relationships and strive to become a partner you can truly rely on.
That is why we approach every case with full responsibility and work until the result is achieved.
Tatiana Vyborna
Founder
A certified specialist in administrative and civil law, legalization of residence, and employment of foreign nationals in Poland. Tatiana graduated from the Faculty of Law at the University of Wrocław and Uniwersytet Ekonomiczny we Wrocławiu, successfully completing postgraduate studies in the legalization of residence and employment of foreign nationals.
With over 10 years of experience, including daily cooperation with government authorities and leading international companies, Tatiana has developed effective solutions that deliver fast results for her clients. She has represented the company’s and clients’ interests in over 20 inspections before state authorities — Straż Graniczna, Państwowa Inspekcja Pracy, Urząd Skarbowy, and ZUS — successfully defending their legal position. She offers clear legal consultations, helps gather the necessary documents, and provides support at every stage of the process.
Her individual approach and hands-on experience make legalization accessible to everyone seeking lawful integration into Polish society. She is fluent in English, Polish, Ukrainian, and Russian, and is currently learning Spanish.
Founder
11 years of legal practice
Tatiana Vyborna
Dmitry Kozlenkov
Operations Director
A certified specialist in business strategy, labor and administrative law, and IT solutions for companies entering the Polish market. Dmitry graduated from the Faculty of International Relations at the National University “Odessa Law Academy.”
Over the course of his career, he has accumulated extensive experience in HR process optimization, large-scale budget management, and the implementation of IT solutions — including CRM, ERP, and AI. He provides full support at every stage: from the initial consultation and business launch to representing clients’ interests before courts and government authorities. The strategic initiatives he has led have resulted in revenues exceeding 30 million PLN and the employment of over 8,000 foreign nationals.
His individual approach and commitment to continuous professional development allow him to offer practical recommendations tailored to the specifics of each project. Whether you are planning to establish a new company or grow an existing one, Dmitry will develop a strategy and select the right tools to make your business thrive in Poland. He is fluent in Polish, English, Ukrainian, and Russian.
Operations Director
8 years in business management
Dmitry Kozlenkov
The Story of ONE PLUS
Discover how the team has grown, adapted, and transformed over the years
2013
Dmitry’s Education
Dmitry begins his legal education at the National University “Odesa Law Academy” (Odesa, Ukraine).
2014
Tatiana’s Education
Tatiana enrolls at the Wroclaw University of Economics and Business (Wrocław, Poland) to pursue a European education.
2015
First experience
Dmitry and Tatiana begin their careers at a large international company, specializing in employment and legalization of foreigners.
2017
Advanced training
Tatiana completes specialized courses in the legalization of foreigners’ stay, deepening her knowledge in immigration law.
2018
Dual degree
Tatiana obtains a dual master’s degree from the University of Wrocław and the Wroclaw University of Economics and Business, strengthening her expertise.
2018
Founding of ONE PLUS
Based on the accumulated experience, the company ONE PLUS is established, specializing in employment and legalization of foreigners.
2019
Certificate of reliability
The company receives the “Rzetelna Firma” certificate, confirming its strong reputation and reliability.
2020
Client Trust
ONE PLUS is awarded the “Przedsiębiorstwo Godne Zaufania” certificate, further strengthening client trust.
2020
Strategic partnership
A partnership is established with Intercars S.A. to provide temporary employment agency services and legal support related to the legalization of foreigners.
2020-2022
Crises and growth
Despite the Covid-19 pandemic and the war in Ukraine, the company continues to grow thanks to a strong team.
2022
Leadership
ONE PLUS becomes a leading agency among its strategic partner’s network, having employed over 5,000 staff within 2 years.
2022
Tatiana’s PhD Studies
Tatiana completed her doctoral studies at the Faculty of Law of the University of Wrocław, specializing in the employment of foreigners.
2023
Successful clients
Over 10,000 clients have used our services — we’ve assisted with residence legalization and the processing of various legal documents.
2024
Financial success
The company’s total turnover exceeds 30 million PLN.
2025
Closure of division
Due to changes in the labor market, the company decides to close its employment division and initiate a global rebranding.
2025
Shift in focus
ONE PLUS specializes in comprehensive legal services for foreigners and business consultancy, marking a new chapter in its development.
Why choose us?
Thanks to our company and the professionalism of our legal experts, we provide comprehensive assistance with all legal matters in Poland.
Our specialists have extensive experience in the following areas of law:
Immigration Law
Legalization of stay, issuance of residence cards, visas, and work permits.
Civil Law
Drafting and legal analysis of contracts, comprehensive protection of rights in legal disputes.
Labor Law
Consultations on employment contracts, protection of employee and employer rights.
IT Lawyer
Legal support for IT businesses and freelancers, and assistance with digital projects.
Administrative Law
Interaction with government authorities, assistance in resolving administrative disputes.
Commercial Law
Business registration and support, contractual relations between companies.
Copyright Law
Protection of intellectual property, licensing, and regulatory compliance.
Criminal Law
Professional legal assistance in protecting clients’ rights and interests in complex criminal cases.
We strive to offer our clients effective and personalized solutions based on in-depth knowledge of Polish law and years of practical experience. With us, you gain not only legal support but also confidence in the successful resolution of your matters!
Our partners
Why we are recommended
We don’t talk about chances – we guarantee results- You work exclusively with certified lawyers and experts.
- Our specialists have verified legal education and many years of experience.
- Over 95% of our clients recommend us to others, confirming our reliability.
Reviews
Reviews about us on Google
Video reviews on YouTube
Client trust is the highest measure of our success
Oleh Kuzyk
Great service! Exchanging my foreign driver’s license for a Polish one was quick and smooth. Highly recommend!
18.04.2026
Oleksii Polishchuk
Highly recommend ONE PLUS! High quality, fast and professional service. Have been using various services for 6 years and always satisfied with the results. The best on the market. Thank you so much!
17.04.2026
Anish Karichery
Living in Canada, I needed a criminal record certificate from Poland. Tatiana handled everything professionally and promptly. Digital copies arrived the next day, translations within a few days. Best price on the market. Highly recommend!
13.04.2026
Kseniya Dzherenova
Everything is great! Got my apostille here, the process was easy and quick. Will definitely return for further legalization. Highly recommend as reliable specialists!
12.04.2026
W P
Excellent company. Got answers to all my questions from a competent lawyer. Will definitely continue working together!
12.04.2026
Angela Sedlak
It was wonderful to receive help from ONE PLUS, their professional and timely support made the bureaucratic process much easier. Highly recommend. Thank you so much!
28.03.2026
Katya Sobol
My third karta pobytu with ONE PLUS! Received pobyt stały in just 4 months when you work with true professionals. Huge thanks to Tatiana for handling my case and controlling every step. Wishing the company further success!
25.03.2026
Anastasia
Used their help to add driver’s license to the MVS Ukraine database. The remote procedure took about 10 minutes, very convenient without traveling to Wroclaw. Also ordered birth certificate translation for karta pobytu and company registration. Tatiana handled everything professionally and transparently. Highly recommend!
21.03.2026
Munashe Chitambira
Quick and efficient service for obtaining a police clearance certificate. Highly recommend!
18.03.2026
MD SHARIFUL ISLAM
Very positive experience with this legal firm. They helped me achieve a successful residence permit decision. Professional, responsive and kind throughout the entire process. Clear communication made everything much less stressful. Special thanks to Tatiana Vyborna for her outstanding support.
17.03.2026
Vladyslav Sobchenko
Applied for karta pobytu for the whole family with ONE PLUS. Tatiana saved us from serious issues with our stay in Poland. Also arranged 3 work invitations in record time. Three stamps in three passports within one month. Very satisfied.
14.03.2026
Ilya Plotsky
Needed a duplicate birth certificate with apostille and the team handled everything within the agreed timeframe at a great price.
24.02.2026
Daria Stetsenko
Really enjoyed working with this company. Ordered document duplicates with apostille and sworn translation. Everything was done precisely and with great communication. Highly recommend!
06.12.2025
Inna Voloshchenko
Very satisfied with ONE PLUS. Our data was added to the police database quickly, everything went smoothly and without any issues. Highly recommend!
07.12.2025
Anastasia Dorokhina
Thank you for the excellent work. Document with apostille and Polish translation was received on time and without any issues. Highly recommend!
08.12.2025
Stepan
Thank you so much, everything was processed quickly and reliably. Birth certificate was obtained without any issues. Highly recommend!
08.12.2025
Maksym Vasylenko
ONE PLUS helped me exchange my driver’s license for a Polish one quickly and correctly. Thank you to the team for their professionalism and attention.
08.12.2025
Lyubomir Sushchenko
Many thanks for the help with obtaining my karta pobytu! Everything went perfectly and I am very satisfied with the service.
18.07.2025
Zoriana Cherkashyna
Very grateful to ONE PLUS for their help with obtaining my karta pobytu. Not my first time here and as always everything was handled at the highest level. Highly recommend!
15.07.2025
Nikolai Sheiko
Everything was handled at the highest level.
02.07.2025
Tornike Goguadze
Great company, they prepared an invitation letter for me and constantly help with various matters including consultations and legal assistance.
25.06.2025
Evgeny Prokhorenko
Very happy with the company! Everything was done quickly and efficiently. Very friendly staff, highly recommend!
15.06.2025
Russo Avdoyan
05.06.2025
Viktor
Thank you ONE PLUS! They helped with my karta pobytu quickly and without any unnecessary hassle. Very grateful for the help and support. Highly recommend!
02.06.2025
Olena Ulanovska
Huge thanks! This is my second time using your services and I am completely satisfied again. Thank you for delivering work at a perfect 10 out of 10 level.
01.06.2025
Evgenia Kuksenko
Professional company! Thank you to Tatiana for her help at every stage of obtaining my karta stałego pobytu. Everything was done quickly and with great quality. Will definitely return!
23.05.2025
Tatsiana Chuiko
Thank you to specialist Tatiana for the prompt help with exchanging my driver’s license. All documents were translated into Polish and submitted in one day. Polish license received within a week!
19.05.2025
Oksana Cherkaska
Professional company with an individual approach to each client. Excellent communication, involvement and flexibility. Definitely recommend!
14.05.2025
Panteleimon Grintza
Quick, efficient and fully dedicated. Without this company I would not have managed with all the formalities. Thank you!
13.05.2025
Roman Boiko
Very satisfied with the result, everything at the highest level. Received my resident card in 10 months. Full support from start to finish, the staff truly know their job. Highly recommend!
09.05.2025
Ruslana Shaposhnyk
I want to thank you for your services, the quality of service is at the highest level. You are the best!
07.05.2025
Den Sauliak
Thank you ONE PLUS for the help with karta pobytu! Everything was quick, clear and done with care. Special thanks to Tatiana, decision received in record time. Recommend to everyone who values quality and attitude!
13.04.2025
Valeria
I came for a consultation on opening a business in Poland. Everything was explained clearly and simply, they helped with documents and all the details. Thank you!
04.04.2025
Volodymyr Nazarenko
Highly recommend! They helped with company registration in Poland and legalization of stay. Professional approach and excellent service!
04.04.2025
Alex True
Thank you for the consultation, everything was explained clearly and professionally. Highly recommend!
04.04.2025
Alina Tokarska
Super satisfied with the speed and precision in handling my karta pobytu! Special thanks to Tatiana, you are a true professional!
04.04.2025
Yuliia Sirenko
The best legalization service in Wroclaw! Highly recommend!
04.04.2025
Artem Sobol
Have known the team for a long time, always friendly and professional. Highly recommend!
03.04.2025
Igor Bogush
Very satisfied with ONE PLUS service. The best company on the market!
03.04.2025
Darya Yashchuk
In 2020 I started my journey of legal work in Poland and have no regrets. I worked for about 1.5 years and even today I could get any document without any doubt. I also received my karta pobytu with the help of this company. Everything is great, highly recommend!
03.04.2025
DeKa Studio
We have been working together since 2019, this wonderful company handles all our documents, always staying on top of things and providing information with lightning speed. Thank you for the fruitful and long-term cooperation!
03.04.2025
Muhammed Olaogun
Excellent service! They supported me throughout the entire process, providing updates and helping with all application logistics. Two years of reliable support every step of the way. Highly recommend!
03.04.2025
No_4mat
Received my decision very quickly. If you don’t want to stand in lines and struggle with applications, I highly recommend ONE PLUS!
03.04.2025
1000
Very satisfied with ONE PLUS service. Help, support and consultation were provided throughout the entire process. Grateful that they found a solution even in a non-standard situation. Highly recommend!
23.03.2025
Maksym Bobrowski
Have been working with this company since 2018, always professional, reliable and attentive to details. Excellent service and competent team. Highly recommend!
23.03.2025
Valeriia Kuznietsova
Have been working with ONE PLUS for about 7 years, always clear and professional. My karta pobytu was done quickly, unlike my colleague who is still waiting through another company. Always available and give clear answers. Highly recommend!
20.03.2025
Lyubov Kvartalnaya
Excellent company! Received a detailed consultation on tax declaration, everything was processed quickly and explained clearly. Professional and precise. Highly recommend!
06.03.2025
Yehenii Spashchenko
The best in their field! Helped quickly gather all documents and apply for karta pobytu. Always available during the process, guiding and helping to solve any issues. Highly recommend!
06.03.2025
Lyubomir Sushchenko
Many thanks for the help with obtaining my karta pobytu! Everything went perfectly and I am very satisfied with the service.
19.03.2024
Evgenia Alex
I want to express my gratitude and a big thank you to Tatiana for her help and support in obtaining the decision and the quick receipt of the residence card!
14.02.2025
Kateryna Lisenkova
Thank you to the ONE PLUS team, received my karta pobytu very quickly! Professional, prompt and caring service. Recommend to everyone who values quality and results!
13.02.2025
Elena Kovalchuk
Applied for a resident card and Tatiana handled the case from start to finish. Professional, polite and with an excellent result: decision received in less than 8 months. Very grateful and highly recommend!
12.02.2025
Egor Shpakevich
Applied about a year ago for driver’s license exchange. Was welcomed warmly, everything explained clearly. The team handled everything while I just waited. Now I have my Polish license in hand, unforgettable feeling. Sincerely grateful!
30.01.2025
Petro Buchynskyi
Contacted ONE PLUS after 2 years of waiting with no response. Thanks to them received a decision within a year, even through court. The company handles everything including filing the lawsuit. Very convenient, highly recommend!
25.01.2025
Fonubar (Vlad)
Contacted the company on a friend’s recommendation and have no regrets! They helped quickly and smoothly with opening a business in Poland. Always available and ready to help. Sincerely grateful!
24.12.2024
26.03.2026
29.01.2026
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31.01.2025
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10.12.2024
Clients from different countries
Our company provides comprehensive legal support for foreigners and businesses looking to legalize their stay or expand in Poland. We guide clients through every stage — from initial consultation and document preparation to communication with Polish institutions — ensuring full compliance, transparency, and efficiency throughout the process.
We specialize in residence permits, permanent stay, citizenship, business registration, PESEL and address registration, sworn translations, and other legal procedures. Our experienced team develops tailored solutions, adapting to each client’s needs — whether it’s individual immigration or cross-border business setup.
We also work with medium and large companies, supporting the legalization of foreign professionals and corporate relocation to Poland. Using innovative tools and legal precision, we help our clients reach their goals faster, build lasting partnerships, and operate with confidence in the Polish legal environment.
Our clients
We support those who choose legality, transparency and confidence in migration matters
