The perfect tax adviser knows your situation – from personal experience. Welcome to the tax advisory office of AIQU TAX. We will take the burden off your shoulders because we know what is at stake. We provide you with trustworthy information, and we handle all projects reliably. Our AIQU TAX clients can focus on what they do best: their job. We will take care of the rest. more >

AIQUTAX Peter Kleingarn
Harald Strelen Aiqunited


Our senior executives hold executive mandates or directorships on the Board of Directors by applying the highest standards of professionalism and our full expertise. You will not only benefit from our experience of over 20 years but also from the entire AIQUNITED network in the areas such as Taxes, Legal, Finance, Risk Management, and Operations. Five unique services, all in one network. In conclusion: It couldn’t be any better. more >


Our clients’ needs are as diverse as our expertise. At AIQUNITED, you benefit from the fact that we understand your needs from personal experience. This includes entrepreneurial, tax, and structural aspects. Our goal is to develop the perfect structure for your company or investment vehicle – for us, this involves applying our passion for perfection, for you, it means assurance. more >

Harald Strelen AIQUNITED
Peter Kleingarn, Harald Strelen Aiqunited


We are bankers, lawyers, and tax advisers. The partners of AIQUNITED are excellent advisers. Loyal, reliable, and competent. But above all, we are independent and solely committed to representing your interests alone.

Make us a part of your team and you will soon discover that providing trustworthy information is more important to us than unnecessarily logging billable hours.