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About

A practical service built around responsibility

My name is Sergei Kuzmitch. I am an international professional and a father living in Zurich. I founded DaSii Zürich with two goals: to create useful, responsible work that contributes to society and to build an independent local business based on trust.

I have spent much of my professional life coordinating people, projects, deadlines and complex practical requirements. DaSii Zürich applies that organisational mindset to everyday household challenges—patiently, personally and without turning ordinary assistance into an anonymous process.

I am fluent in English and speak German at C1 level. The service is therefore particularly suited to international families who need a local person capable of working across both languages.

DaSii Zürich is not a medical or nursing provider. When a need falls outside my competence or the agreed service scope, I say so clearly and recommend using an appropriate professional.

Sergei Kuzmitch, founder of DaSii Zürich

Sergei Kuzmitch — Personal household concierge for older adults and families

Values

Respect

The older client remains central. Assistance is based on their choices, privacy and dignity.

Reliability

Commitments, updates and boundaries are documented and followed through.

Clarity

Pricing, included time and limitations are explained before work begins.

Discretion

Only necessary information is collected, and family updates require the client's authorisation.

Independence

DaSii Zürich does not accept hidden commissions for recommending providers.

Founder-led pilot

The initial service is deliberately small and founder-led. This makes it possible to learn directly from the first households, protect service quality and develop future team standards based on real experience rather than assumptions.