Majority investment by Accurio with a long-term participation horizon for the founders
For firm owners who want to join the Accurio organisation and grow with us, with a multiplied potential return over time.
Accurio · Accounting services group
Building the accounting firm of the new era
With cutting-edge technology, deep expertise, and experience in transformation and rapid growth.
Our Vision
We created Accurio because:
- We want
- to transform the way accountants work and the relationship between accountant and client, and to build the largest accounting services company in Greece.
- We aim
- to be pioneers in Greece in combining accounting services with cutting-edge technology, across ownership, operations, growth and the standardisation of services.
- We believe
- in technology that does not replace people but multiplies what we can do: serving more clients with even greater efficiency, depth and accuracy.
Who We Are
A team that brings experience, breadth of knowledge and a championship mindset on three levels.
Accounting firms
Leading and growing some of the country's largest accounting firms, with professional consistency, a focus on correct implementation, and a strong, continually growing client base.
Technology and AI
Pioneers in designing and successfully delivering AI infrastructure and applications at leading companies in South-East Europe.
Management, transformation, scaling
Transforming and growing organisations that multiplied their results within a few years, through economies of scale and technological progress.
The people of Accurio
Founder and Chairman of the BoardAntonis Kyriazis has played a decisive role in the development of business software in Greece over the last three decades. He founded Singular Logic and, as its head, made it the country's leading and most influential enterprise IT company.
From 2005 to 2025 he was a principal shareholder of SoftOne, first as Chief Executive Officer and then as Chairman of the Board. During this period SoftOne became a market leader, pioneered cloud-native business software in South-East Europe, built the largest partner network in Greece and, more recently, embedded artificial intelligence in its products.
Since 2025 he has been active as an investor and an active board member in companies that place cutting-edge technology at the core of their strategy.
Founder and Vice Chairman of the BoardSakis Tzigkos began his career in 2012 as a Certified Auditor at KPMG, focusing on the banking and financial sector. In 2017 he joined one of the largest accounting firms in Greece, where he held a series of senior positions, most recently that of Managing Partner.
With expertise in tax audit, strategic tax advisory and proactive tax planning for companies, organisations and individuals, Sakis Tzigkos plays a key role in resolving complex business matters. Through his experience and strategic approach, he helps owners and shareholders navigate a dynamic and constantly changing economic environment effectively.
Founder and CEOPanos Martinis served as Group CEO of SoftOne from 2021 to 2024, leading its transformation into a leading business SaaS provider in Greece and South-East Europe. During this period revenue exceeded €70 million in 2024, with average annual growth of 38% and Cash EBITDA of around 30%. The company completed 8 strategic acquisitions, fully integrated into the group, expanded into 9 product categories, pioneered AI applications in business software and grew from 250 to 800 employees.
For the past 2 years he has been a board advisor and co-investor in technology companies, focusing on AI-driven growth transformation in sectors such as fintech, health services and accounting automation.
Accurio's founding team is completed by select executives with many years of experience in AI technologies, cloud-native business software and financial and technical services.
How Our Story Began
August 2026 – Investment in IAS
IAS
One of the country's leading accounting firms, with outstanding people and long-standing relationships of reliability and trust with its clients. The first company of the Accurio group.
AccountingTaxPayrollOversight and Advisory
Visit the IAS website 20+Years in business
800+Clients
60Experts
Why IAS
Steady, focused growth
A track record built with consistency and a plan.
Exceptional people and culture
The main reason IAS is our first choice.
Service quality and professional reputation
An excellent name in the market and long-standing relationships of trust with clients.
The Accurio Model in Practice
How we work: two investment models
Fast acquisition and a smooth transition of clients and employees into the new era
For firm owners who want to secure a fast and successful exit, while preserving the best reputation with their clients and employees.
What Accurio offers
Growth drive
A focus on growth: the goal is for the group's companies to grow and improve.
AI platform and tools
Connection to Accurio's platform and AI tools, with full support for an easy and fast transition.
Cloud infrastructure
Migration of databases and reporting systems to the cloud, with high standards of cybersecurity, processing speed and interoperability with other platforms.
Tools tailored to you
The ability to customise and develop new tools that fit the specialised needs of each firm.
Best practices for people
Adoption of best practices in HR, payroll, benefits, training, performance review and career development.
Central support
Central legal support, and specialised guidance on targeted marketing strategies for each firm.
What it means in practice
- You secure the reward for your life's work.
- You leave the best name with your clients and your people.
- Your clients move smoothly to a new-era accounting firm, with cutting-edge technology that upgrades their experience.
- Your executives and employees join a leading company in the sector, with excellent benefits and career opportunities.
- Significant recognition today, with a large stake in tomorrowYou secure value today for your life's work while co-investing in the transformation of your firm within Accurio, with multiplied potential benefits in the future.
- Your firm keeps its identityYou keep your brand name, your management and your commercial strategy.
- Leaders, not followersThe industry is changing fast. Accurio will be a pioneer of the new era, and you along with it.
- A new-era accounting firmA move to cutting-edge technology that upgrades your experience and expands what you can do.
- More expertise on your sideJoining a group with great depth and breadth of knowledge and access to specialised services.
- An upgraded roleTraining in new technologies, performance incentives and an upgraded role. Less repetitive work, more meaningful value.
- Tools built with youNew tools introduced with respect for the way you work, and new tools developed with your participation to fit your needs. Nothing imposed from above.
- A large corporate familyBest practices in people management and broad prospects for personal growth.
Together into the new era of accounting services.
The firm you built deserves continuity and growth. Let's talk, in confidence and without obligation.