Overview
At-Expert is a local installation company that designs and executes heating, plumbing, ventilation, air conditioning, and renewable energy systems for homes, businesses, and institutions. They provide comprehensive installation services from start to finish, including energy audits and certifications. The company emphasizes timely and organized work, ensuring customer satisfaction throughout the process.
Financials
Revenue history (in k)
Data and insights are generated automatically based on financial statements and may contain errors. This analysis is for informational purposes only and does not constitute an official assessment of the company's credibility or business advice.
Statistics
How the company ranks by revenue within its industry, region and across Poland in 2025.
Results vs industry
Industry
Bank accounts
Registered as a VAT taxpayer on 2022-05-28. Active
57 1050 1230 1000 0090 8163 4827
Debt
No entries in the National Debtors Register (KRZ). No proceedings in KRZ
Public aid
| Grant date | Purpose | Gross amount | Granting body | |
|---|---|---|---|---|
| Jun 18, 2025 | De minimis aid (in accordance with Commission Regulation 2023/2831) | $1,152 | Prezes Banku Gospodarstwa Krajowego |
Tenders
No recorded participation in tenders.
Authorized Representatives
Manner of representation
In the case of a one-person management board, the member of the management board makes declarations on behalf of the company. In the case of a management board consisting of two or more persons, joint action by two members of the management board or by one member of the management board jointly with a commercial proxy is required to make declarations on behalf of the company.
Ownership
| Owner | Shares | Share value | Stake |
|---|---|---|---|
Tomasz Stanisław Janoszka (37) | 35 | $945.43 | 70% |
Sylwia Anna Musialik (34) | 15 | $405.19 | 30% |
Beneficial owners
| Person | Rights |
|---|---|
Tomasz Stanisław Janoszka (37)  | Shareholder of a limited liability company, 3500.0 PLN |
Sylwia Anna Musialik (34) | Shareholder / partner |
Competitors
| Name | Revenue | Website | |
|---|---|---|---|
| Stańczak Instalacjesp. z o.o. | $1,199,507.86 | fhustanczak.pl | |
| Persemsp. z o.o. | $1,021,167.75 | persem.pl | |
| Eko Instal-Wentsp. z o.o. | $948,582.39 | ekoinstalwent.pl | |
| Komfosp. z o.o. | $759,494.80 | komfo.pl | |
| Tricoolsp. z o.o. | $604,489.79 | tricool.pl | |
| Domiwentsp. z o.o. | $508,720.21 | domiwent.pl | |
| Hydro Housesp. z o.o. | $255,817.35 | hydro-house.pl | |
| Ikwesp. z o.o. | $254,770.31 | ikwe.pl | |
| Top-Instal Innovationssp. z o.o. | $250,738.81 | topinstal.com.pl | |
| Instal Worksp. z o.o. | $220,566.25 | instalwork.pl |
FAQ
Last updated: 2026-07-06