A technology company built on responsibility
Onwelo is a technology company supporting organizations that operate under complexity, regulation, and scale. We build and maintain systems that remain reliable over time
measurable results
Onwelo combines technological expertise with a practical understanding of how organizations operate. For nearly a decade, we have been supporting companies in building and maintaining critical systems across financial services, manufacturing, healthcare, and ICT.
Our teams work on complex initiatives, from data platforms and automation to cloud environments and long-term system maintenance, taking responsibility for delivery and stability.
Internal development programs support skill growth while maintaining consistent delivery standards.
Onwelo started in 2015 as a Polish technology company built around a simple idea – to deliver IT services at the level of global players while staying flexible, pragmatic and close to clients.
Onwelo teams bring together technical expertise and delivery discipline. We value clarity, accountability, and cooperation across teams and with our clients.
Industry Expertise
Deep domain knowledge that delivers business outcomes
Financial Services
Delivery in finance requires traceability, control, and repeatable reporting. We support enterprise teams with data workflows, automation, and analytics that reduce manual load and improve operational oversight.
What defines Onwelo
Engineering
Onwelo is built around experienced engineers, architects, and delivery leaders. Projects are led by people who understand both technology and operational constraints.
Responsibility
We focus on what can be delivered, maintained, and measured. Commitments are based on facts, not assumptions.
Complex
We work where data security, availability, and compliance are essential. Our delivery model reflects these requirements from day one.
Perspective
Many of our engagements extend beyond implementation into system operation and continuous development. Stability and continuity matter as much as initial delivery.
People & Culture
We build technology that changes how people work
Marcin Maj CEO add
Piotr Piekutowski Board Member, Chief Legal Officer add
Why clients trust onwelo
Clients work with Onwelo because they need a partner guided by clear principles and accountable action
Integrity first
A partner who takes responsibility for outcomes.
Client-Centric
Systems that remain stable as they evolve.
Strategic thinking
Predictable delivery under constraints.
Collaboration
We believe in working together, not just consulting.
Innovation
We challenge norms to find smarter solutions.
Trust is built through repeatable behavior and long-term cooperation.
Quality, Security and Compliance
Certified standards support how we operate as a company
Information security management
A structured framework for protecting data confidentiality, integrity, and availability across systems, teams, and partners.
Quality Management
A process-driven approach ensuring repeatability, accountability, and continuous improvement across delivery.
Automotive Information Security
An industry-recognized standard required in automotive and manufacturing ecosystems.
Cloud Security Controls
A framework extending information security standards to cloud environments, ensuring secure design, deployment and management of cloud-based systems and infrastructure.
Protection of Personal Data in Cloud
An international standard focused on protecting personally identifiable information (PII) processed in public cloud environments.
Environmental Management
A structured approach to managing environmental impact across operations, focusing on responsible resource use and sustainable processes.
Where we operate
We have offices and teams all around the world
Warsaw
ul. Sienna 39
00-119 Warsaw
Cracow
ul. Mogilska 43
31-545 Cracow
Kielce
Al. IX Wieków Kielc 8/38 - 8/37
25-516 Kielce
Gdańsk
ul. Azymutalna 9
80-298 Gdańsk
Lublin
ul. Nałeczowska 14
80-298 Lublin
Łódź
ul. płk. Jana Kilińskiego 66
90-118 Łódź
New York
85 Broad Street
NY 10004
