When evaluating IT partners, you will often see ISO certification logos on their websites. But most business owners do not know what these certifications actually require or why they should care. This guide explains the four ISO certifications most relevant to IT service providers — what each one covers, what it takes to achieve and maintain them, and how they directly benefit you as a client.
ISO 9001: Quality Management Systems
ISO 9001 is the most widely recognised quality management standard in the world. For an IT company, it means the organisation has documented, repeatable processes for every aspect of service delivery — from initial client engagement through development, testing, deployment, and support. It requires regular internal audits, management reviews, and a commitment to continuous improvement based on measured performance data.
What it means for you: your project will follow a defined process, not an improvised one. Quality controls, reviews, and checkpoints are built into the workflow. If something goes wrong, there is a documented corrective action process. You are not relying on individual heroics — you are relying on a system.
ISO 14001: Environmental Management Systems
ISO 14001 certifies that the organisation has implemented an environmental management system to minimise its environmental impact. For IT companies, this covers energy consumption, electronic waste management, paper usage, travel policies, and data centre sustainability. While it may seem less critical for a software company, it reflects organisational maturity and corporate responsibility.
What it means for you: if your organisation has ESG (Environmental, Social, Governance) requirements for vendors and suppliers, an ISO 14001 certified IT partner meets those criteria. It also indicates a company that thinks beyond immediate deliverables — a good signal of long-term operational thinking.
ISO 20000-1: IT Service Management
ISO 20000-1 is specifically designed for IT service providers. It is aligned with ITIL (Information Technology Infrastructure Library) best practices and certifies that the company has mature processes for incident management, problem management, change management, service level management, and capacity planning. This is the certification that matters most for managed IT services and ongoing support relationships.
What it means for you: your IT partner has defined SLAs and the processes to meet them. Incidents are tracked, escalated, and resolved through a structured system. Changes to production systems follow an approved change management process to minimise risk. Your IT services are managed, not just maintained.
ISO 27001: Information Security Management
ISO 27001 is the gold standard for information security. It certifies that the organisation has implemented a comprehensive Information Security Management System (ISMS) covering risk assessment, access controls, data encryption, incident response, business continuity, and employee security awareness training. Achieving ISO 27001 is one of the most rigorous certification processes — it requires a complete inventory of information assets, a formal risk assessment, and implementation of controls for every identified risk.
What it means for you: your data is handled with defined security controls. Access is restricted on a need-to-know basis. The company has tested incident response procedures. Employee devices, networks, and data storage meet international security standards. For businesses handling sensitive customer data, working with an ISO 27001 certified partner is often a regulatory or contractual requirement.
A certification is only as good as its maintenance. ISO certifications require annual surveillance audits and a full re-certification audit every three years. Ask your IT partner when their last audit was and whether they can share the certificate with validity dates.
The Cost and Effort Behind Certification
Achieving even one ISO certification typically takes 6 to 12 months of preparation and significant investment in processes, documentation, training, and external audit fees. Maintaining four certifications simultaneously — as OBI Systems does — requires a dedicated management system, regular internal audits across all four standards, and continuous investment in process improvement. Companies that maintain multiple certifications have made a deliberate strategic commitment to operational excellence.
How to Verify ISO Certifications
- Ask for the actual certificate — it shows the scope, the accreditation body, and the expiry date
- Verify the accreditation body is recognised — UKAS, ANAB, DAkkS, and RENAR (in Romania) are reputable bodies
- Check the scope — a company can be certified for specific activities only, not necessarily everything they do
- Ask when the last audit was — certificates can be suspended if annual surveillance audits are not completed
OBI Systems holds ISO 9001, ISO 14001, ISO 20000-1, and ISO 27001 certifications. All four are audited annually and cover our full scope of software development, IT service management, and consulting activities. We are happy to share our certificates and audit history with clients and prospective partners upon request.