A few words about us, about A.TL.AS Consulting

We do not consider ourselves a conventional Tax Consultants and Accountants Company.
We go steps further providing Business Solutions that help you Grow and Thrive within the Greek as well as the International Market.

It was a great honour for us to be included in the list of Thessaloniki’s Historical Companies. As a second-generation company, we pivoted our business concept in 2007 in order to exploit better our business expertise and experience.
Our highly educated people, are steadily focused on continuous personal and professional development and always provide exceptional business solutions services.

Our moto is: “A most Sophisticated Consulting Company, where always our People Make the Difference”

We support small and medium-sized businesses that seek:
Growth, Development, Increased Profitability, Viable Business Model that leads to a Maximized share of the Greek & International Market and Confidence about receiving the best possible Tax-Accounting Operation Services concerning their business.

A.TL.AS, our brand name derives from acronyms framing the range our provided services:

  • Α for Accounting, our most integrated Accounting Support and Legal Counselling
  • ΤL for Taxation Law, absolut Tax-Law Consulting
  • ΑS for Administration Specialists, a full Business Development Consultancy

Our competitive advantage derives from our expertise, multi-layer experience and ethics. Due to that, we fully cover our customers’ needs with respect, integrity and high standards of professionalism. Our clientele consists of a wide range of either corporate businesses and/or privates-individuals based either in Greece as well as around the Globe!
We are much more than simply an experienced Tax Consultants and Accountants Company… We are and always be, Your Reliable Business Partner.

Our Mission

To be one of the most reliable business partners in Greece, through our excessive knowledge, experience and our powerful international professional network.
To substantially contribute to SMEs growth and profitability through commitment, innovative approach and accountability.

Our Culture

Our most important asset is our Human Capital; thus we focus on our People’s Personal Development and Progress and also we provide them with suitable stimuli to always be up-to-date in their professional field.
Our Culture is expressed in a single phrase!
“Everyone can meliorate and continuously self-improve acquiring
the ’’we’’ instead of ’’me’’ philosophy”.


Strong Expertise

Why choose to work with A.TL.AS Consulting,
why to choose us?

Hundreds of Happy Atlas Customers-Business People in Greece as well as around the Globe, enjoy our services, share our values and
trust us for:
48 Years Market Experience
…5 decades of continuous market presence is in fact the proof of highly professional experience and market reliability.
We are business people too
…we communicate effectively with our clients, knowing and understanding their needs because we are businesspeople too.
No Business Borders
...we use modern smart technologies and tools in order to provide our services remotely to any client from Greece or wherever around the Globe.
Exceptional Customer Service
..a highly nimble and effective approach to giving our clients the services they need promptly and genuinely.
Trusted Advisors
…we nurture our professional relationships with trust, humanity and empathy as well as integrity and confidentiality.
International Network
… we are Trusted Members of International Networks of Tax Accountant and Business Incorporation Agents.
Value for money
…Our pricing is fair and reasonable & our team is committed to providing you quality, timely service that exceeds your expectations.
One Stop Solutions
…we support holistically the modern SMEs companies, providing turnkey and integrated services.

Our History

🏢Initial Company Formation,founded by Kleanthis Patsoumis
🖥Purchase of the first PC and Accounting Software in the Greek Market
📍Transfer of the company's tax seat to self owned premises in Pylaia Thessaloniki
🌍Foundation of a new company, KEY LTD, that provides Funding Support to SMEs through European Programs
🏭Support to Greek Companies for establishing their subsidiaries and manufacturing premises in Bulgaria and Balkans
📌Sousana starts her career in the company along with her Academic Studies and her training
🤝The company starts to support SMEs through Business Consulting & Mentoring
🏬The business has been transformed into a company with the participation of Sousana and Aliki, the founder's daughters
🌀Georgios enters the company and the company is renamed into A.TL.AS Consulting i.e. A for Accounting, T for Taxation, L for Law, A for Administration, S for Specialists
✍️We create, AtlasHub, the Business Growth Hub
🌐We create the Atlas Learning, the Business and Professional Growth School
🇬🇷 We setup our branch in Athens in order to support our local clients and our clients from abroad
🌎Energetic participation in International Networks for Entrepreneurship and International Tax Accounting Organisations and Networks
🔘Our company tax seat is transferred in a bigger premises - Atlas Business Center is founded and is settled in the new premises offering a variety of new services
Two Awards have been won by Accounting Awards
🥇Gold Award in the Regional Accounting Firms category
🥈Silver Award in the category Successful offer of services abroad.
We are really proud of that!
🌏Our clientele is Our clientele now extends to all continents, to almost 100 countries and we are moving forward! The sky is the limit

🏅We are awarded as the Accounting Expert of the Year by the Leaders in Law

🔑We are moving to new premises in Thessaloniki
🔵1972 - 2022 Golden Anniversary of Atlas Consulting

🏅Wins 8 awards at the Accounting Awards 2022 and awarded as the 𝐂𝐨𝐧𝐬𝐮𝐥𝐭𝐢𝐧𝐠 𝐂𝐨𝐦𝐩𝐚𝐧𝐲 𝐨𝐟 𝐭𝐡𝐞 𝐘𝐞𝐚𝐫!

Our Competences

Tax Consulting
Business Consulting
Legal Services
International Tax Planning
Business Funding
Immigration Services
Accounting & Bookkeeping
Marketing & Branding
Business Consulting

Our clients across the Globe

We are here to assist you!


+30 2310 310910


+30 210 3004160



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We are here for you to answer any of your questions, finding solutions to any problem!