Instone Accountants is led by Dimitri Langanis whose background spans 15 years in Public Practice Accounting and Tax services in Adelaide.
Dimitri began his practice with a large high-net-worth family group as it’s foundation client. Built on trust and strong relationships, the practice continued to attract high-quality clients and achieved steady growth.
In 2025, Instone Accounting & Business Services was acquired from Paula and Gary Hajek, committing to continue their legacy. The Instone name was proudly retained, and the practice relocated to the office at Ridgehaven. Today, the firm services many clients with a growing team of 4 professionals.
The "Instone" name also carries a personal connection. Dimitri's family heritage traces back to the village of Monolithos in Rhodes, Greece which translates to "mono" (one) and "lithos" (stone). This symbolism of a "single, enduring stone" reflects the firm's approach providing stability, strength, and trusted guidance for individuals and businesses across Adelaide.
Building Better Futures
As the fourth generation in a family of business owners, we carry forward the values that have been passed through each generation. While industries and financial landscapes constantly evolve, the principles remain the same, hard work, integrity, and a commitment to the people we serve.
At Instone Accountants, these values guide everything we do:
Community First - We're proud to be South Australian and are committed to supporting not only local business but also individuals and families in achieving their goals.
Clients at the Core - Whether you're starting or growing a business, planning for the future, or simply wanting peace of mind with your tax affairs, your success is our success. We build lasting relationships, not just transactions.
Integrity and Trust - Trust is the cornerstone of every strong professional relationship.
Adaptability - As the business and taxation landscape changes, we evolve with them, ensuring you're always supported and confident in your position.
Through these principles, we aim to service every client, business owners and individuals alike, to the highest standard.
What is your Story? We love to listen and be part of it!