About us

Emanuel Häsler

Certified Fiduciary, Federal Diploma of Higher Education

Management, constulting for individuals and business customers, complex and international tax returns

Combining knowledge and a pragmatic approach, Emanuel brings great value to his clients.

Emanuel got his first taste for accounting and financial planning when he worked with a Not for Profit Organisation in the San Francisco bay area of the USA for several years. After returning to Switzerland in 2009 he founded C3 Zürich and remains a member of the board today. During this time he also attained his “Certified Case Worker”  status for accounting and tax work at the STS Swiss Fiduciary School. An affinity with numbers and the ability to solve complex problems were already an advantage he had established from his apprenticeship in electronical engineering and attaining the Federal Vocational Baccalaureate. Emanuel's background gives him a unique perspective that drives him to provide practical and useful solutions to his clients.

Matthias Leitner

Case Worker / Administrator
Certified Case Worker Accounting (Edupool / KV Switzerland / VEB)
Currently studying for Certified Fiduciary, Federal Diploma of Higher Education

Accounting and tax returns for all cantons

After my apprenticeship as an office administrator at one of the largest Swiss employers and a few years in customer service, I made the choice to specialise in accounting. While working in the accounting department of a medium-size Non-Profit Organisation, I completed my accounting diploma at KV Business School, Zürich. At the company my tasks included, managing the financial accounting needs of the NPO as well as managing accounts payable and receivable. I gained experience in areas such as invoicing, payments and collection procedures; interim and annual financial statements including cashflow analysis and financial planning. I was also responsible for preparing the annual statements, providing them to management and working with the auditors.

After successfully completing my accounting caseworker education, I was employed by a large international NPO, where I was responsible for many profit-centre accounts (accounting projects with cost centres). Additionally, I was the project leader for the implementation of Swiss GAAP FER 21. During the changeover period, it was necessary to adjust the previous procedures to create a uniform accounting structure. I redefined the entire chart of accounts, specifying where each account was allocated. To support the financial board, I created a rolling wave cashflow plan and prepared the annual audit.

I have a strong flair for numbers. With my work experience in Non-Profit Organisations, I can meet the needs of our clients and enjoy solving troublesome accounting issues. I am highly motivated to find solutions for the many accounting complexities that our Aconta customers have.


Jacqui Schürmann


Administration and tax returns canton ZH

Originally from New Zealand, Jacqui Schürmann is married Benny, a Kiwi-born Swiss. With three grown daughters happily living in New Zealand, Jacqui (and husband) moved to Richterswil, Switzerland in early 2015.
Jacqui is a native English speaker with intermediate German and a smattering of Swiss German. She brings over twenty-five years’ experience, working in various roles including office administrator in several small businesses, being the personal assistant to the senior pastor, Eastside Apostolic Church, Hamilton and joint business owner / office manager in their successful landscaping business.