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Your tax and business consulting in 1090 Vienna



CEO Liss Heller has been working 2021 on retirement provision for entrepreneurs. Together with Dr. Ellmaier, Funds x Future was launched. Would you also like to be carefree in your "Best Age"? Just contact This email address is being protected from spambots. You need JavaScript enabled to view it. for more information.

The Heller Consult team expanded: tax consultant Sandra Lengauer joined the Heller Consult clan.

In November 2021 we started the cooperation with Cointracking - we guide you through the crypto tax jungle.


2020 was a year of great challenges, a year that will go down in history.

At the beginning of the year we started our office operations at Porzellangasse 49. Our former event space "Heller Consult Atelier" became our new office premises. A few weeks after moving in, home office was already on the agenda, as CoVid reached Austria. No problem for the Heller Consult team. Through journal services, video calls etc. the internal, but also the external communication worked smoothly.

In August 2020, the Heller Consult team got company. Business partner Mathias Thon from Thon Baubetreuung GmbH joined us in our new office spaces.

The first Heller Consult online program was launched in November: The "Entrepreneur Starter Package". More info at (only in German).


Goodbye 1st district! After 13 years, it was time for Heller Consult to say farewell: At the end of 2019, moving boxes were packed, many things were sorted out and reorganized. We changed our office premises and moved from Schubertring to Porzellangasse.


Online, online, online: That was our word of the year. Heller Consult was extremely active in the online area with webinars, videos, social media and e-mail in 2018. Our project "Bitcoin - taxed" also started. Nevertheless: analog is still mandatory! Well recognizable in our 2018 network events "It's gonna be brighter on Wednesdays".

Topics included data security in the company, corporate governance and the (potential) financial crisis. Also a special topic for us this year: the GDPR. Well prepared and still well informed we were and are!

On April 1, 2017 Elisabeth Heller celebrated her 35-year professional anniversary as a tax consultant. In addition to her work in tax and business consultancy, Elisabeth Heller is also a professional speaker and coachon the subject of "values".

In 2017, we Heller Consult also celebrate our 25th anniversary. Founded in 1992 under the name of I.S.O.B. Wirtschaftstreuhand, Heller Consult is still owned by the managing director, Elisabeth Heller, who has been working independently since 1982. Heller Consult is a family-run company with long-term employees and an excellent working environment.
Recently, our two long-time employees, Mag. Andrea Frais-Kölbl and Claudia Grell, have become proxy holders. After more than 20 years at Heller Consult they hold a power of attorney in addition to their activities as tax experts, in payroll calculationand account balancing.
For larger events, our office in the Pestalozzigasse is not suitable. To solve this issue, Heller Consult found an optimal event location. Shortly after the contract was signed, the renovations started. In just one month's time, everything had to be ready for the first Heller Consult event, the "Erfolgs- (Success-) Happening". With a team of plumbers, electricians and painters, we transformed the already relatively nice loft into a wonderful location. Together with interior designer and Heller Consult guest blogger Maria Husch, the location got that special "Heller-Touch". We named it "Heller Consult Erfolgsatelier".

By the way, you can rent our „Erfolgsatelier“
After extensive planning and strategizing, Heller Consult launched the Heller Clan Blog in autumn 2014. This blog is to provide an insight into our daily business, and share with entrepreneurs news about tax changes and updates on business topics.
Heller Consult wird Mitglied im BNI - Business Network International

Heller Consult ist Projektpartner von Fit4Firms. Fit4Firms ist eine Maßnahme mit der Unternehmen einfach und unkompliziert die Gesundheit ihrer Mitarbeiter stärken können, die Motivation erhöhen und das Unternehmensergebnis steigern.
Heller Consult becomes exclusive cooperation partner of InterGest Austria Business Development and Administration GmbH. InterGest – an international franchise company with its head office in France –supports companies in planning and implementing their expansion into new markets. With Partners in over 50 locations worldwide, InterGest offers all relevant consultations and services for opening up new markets abroad.
20 years Heller Consult: Many clients and friends of the “Clan“ celebrate the anniversary in the elegant Palais Calm-Gallas. Artists, who already exhibited their works at Heller Consult, presented new and also already known creations in the lobby of the Palais –at the same time a kind of retrospective and prospective. The known author and new media expert, Ernst Schmiederer, leads through his multifaceted project “ImportExport” and the chances of multiculti in the Austrian economy and society Link:. Heller Consult introduced its new image brochure. Elisabeth Heller, an enthusiastic devotee of the “free speech as means of communication”, in a multimedia show presents the service of Heller Consult and interviews the team members about their tasks, experiences and visions. Also the music culture did not miss out – after the background piano music, the guests and team members found the right balance in the after-work disco with lively rhythms.

Our clients benefit from our participation in many Austrian and international conferences that serve the development of new networks, the discovery of new trends and to open up new horizons for our clients’ businesses.
Heller Consult Group: Internal restructuring offers expanding companies worldwide better services from one source.

Establishment of AVANTAGE Business Services GmbH: With a wide range of services, the Russian-speaking team of Avantage supports Russian-speaking entrepreneurs and their families in their relocation into Austria.

Establishment of ASASAT Business Projects GmbH: 10 years’ experience in the Gulf and excellent cooperation with Arabian business families are a presentable success for Heller Consult in the Middle East. The new brand “Asasat” (= Arabic: Basis, corner stone, foundation) presents our hands-on support in our clients’ expansion. With this repositioning we center our focus further on the special requirements of the market, as well as hierarchic and cultural characteristics of the Arabian Gulf.

Establishment of AGORA Business Projects GmbH: Agora focuses on business development for our clients worldwide. The international networking, the long-term know how and the interdisciplinary approach enable the realization of projects with the optimal investors.
Heller Consult becomes a member of one of the most renowned international liaisons of independent tax and business consultant, auditors and lawyers. Geneva Group International (GGI) has 550 company members with nearly 20.000 employees in over 100 countries worldwide.
Heller Consult develops services around the “ClanValue“-philosophy even further. Internationalisation and globalization remain still the focus at Heller Consult.

Elisabeth Heller is founding Heller Consult GmbH Germany with the head office in Berlin.

Heller Consult Middle East GmbH is renamed into “Medicons Pharma- und Medizin Beratungs GmbH” to better serve the clients coming from the medical or pharmaceutical industry.
Die „ClanValue“-Philosophie wird durch Heller Consult in Medien sowie bei Vorträgen und Präsentationen im In- und Ausland aktiv verbreitet.
2006 • Heller Consult wins more and more international customers. Foreign enterprises, which want to gain a foothold in the Austrian market, find with Heller Consult their ideal partner.

With personnel and organization management as well as change management, Heller Consult puts another focus in the area of business consulting.

Heller Consult moves to the new office in the first district of Vienna, Pestalozzigasse 3

The book “ClanValue®” by Elisabeth Heller is published by ECON-Publishing House in Germany, Austria and Switzerland. More about it

Also in 2006, the established team for subsidies at Heller Consult gains high funding from the 6th Supporting Programme EU for its clients in the software industry.
In the year 2005, Heller Consult focused on obtaining subsidies from Austrian, European and International funding programmes for their clients
Establishment of Heller Consult Switzerland in Zurich, cornerstone for consulting clients from all DACH-countries.

Started the project “After Sports – Career after the Career” for top athletes with the aim to “Integration into a profession and personal development” with support by the Austrian Federal Chancellory, Secretariat of Sports.
Establishment of Heller Consult Middle East GmbH

Establishment of Heller Consult FZ-LLC in Dubai (renamed into ASASAT AF LLC in 2010)

Heller Consult becomes the official representative of the TECOM (Dubai Internet City, Dubai Media City, Dubai Knowledge Village) in Austria, Germany and Switzerland

Heller Consult supports enterprises from German-speaking countries as well as from Central and Eastern Europe that operate in various business fields, e.g. in health sector, tourism, technical support, real estate consultation, environmental solutions, trade and investment.
Restructuring of the I.S.O.B. to Heller Consult Tax and Business Solutions GmbH which is fully owned by Elisabeth Heller.

Advancement of the business activities in the Arabian Gulf: The know-how in the Arabian market is put at the disposal of expanding enterprises in the German-speaking countries.
I.S.O.B. group achieves a turn-over of 2 million Euros with locations in Vienna, Neusiedl, Pinkafeld and Güssing as well as internationally in Bratislava and Munich.

Development of trade relations to the United Arab Emirates.
Establishment of the I.S.O.B. with Elisabeth Heller as Proprietor and Managing Director
Elisabeth Heller opens her own company as tax and business consultant