Krotek sp. z o.o.sp. k.
Overview
Instytut Fotonowy designs and builds laboratory instruments for research institutions and industrial use. Its offer includes semiconductor characterization instruments, CCD- and monochromator-based spectrometers, light sources, and optomechanical devices. The company also provides precision CNC machining of metals and plastics, thin-film coatings, repairs and calibrations of scientific instruments, and training in photoelectrochemistry and surface photovoltaics.
News
All Kelvin Probe measurements until now might be corrupted
The incomplete Kelvin Probe theory Kelvin Probe measurements are relative. They reveal, if done correctly, a Contact Potential Difference (CPD or Volta potential) between a sample of interest and the probe’s tip. This result is usually converted to the work function of the sample if the tip’s work function is known. That was a common practice since the invention of […]
A new IMPS/IMVS video with physics animation
IMPS/IMVS capabilities video
Instytut Fotonowy 15th Anniversary – Conference & Workshop
Conference and workshop on 15th anniversary of Instytut Fotonowy
LED Revolver appears on YouTube!
LED Revolver’s video presentation
Forum for users of Fotonowy instruments
forum fotoelektrochemii, fotowoltaiki
Micro Fading Tester has got its own film!
Micro Fading Tester’s video presentation
Industry
Bank accounts
Was a VAT taxpayer from 2012-12-01 to 2025-09-04. Removed from VAT register
Reason for removal: Art. 96 ust. 9a pkt 2 (VAT returns not filed for 3 consecutive months or a quarter)
Debt
No entries in the National Debtors Register (KRZ). No proceedings in KRZ
Public aid
No public aid cases recorded in the last 10 years.
Tenders
No recorded participation in tenders.
Partners
| Partners | Partner role | Limited partner contribution |
|---|---|---|
Krotek Sp. z o.o. | General partner | — |
Zbigniew Piotr Karkuszewski (53)Marital property community | Limited partner | — |
Winicjusz Przemysław Filipow (57)Marital property agreement (separation) | Limited partner | 1800 PLN |
Manner of representation
Each general partner has the right to represent the company independently.
Beneficial owners
| Person | Rights | |
|---|---|---|
Winicjusz Przemysław Filipow (57)  | Limited partner in a limited partnership, 1800.0 PLN | |
Zbigniew Piotr Karkuszewski (53) | Limited partner in a limited partnership, 3200.0 PLN |
Competitors
| Name | Revenue | Website | ||
|---|---|---|---|---|
| Instytut Partnerstwa Gospodarczego i Nowych Technologii Innotechsp. z o.o. | $2,465,278.21 | inpg.pl | ||
| Normalsp. z o.o. | $239,731.08 | normal.info.pl | ||
| Sunfarming Polska Asset 3sp. z o.o. | $72,397.69 | sunfarming.de | ||
| Systerionsp. z o.o. | $74,862.02 | systerion.com | ||
| Labortronic Laboratoria Wzorcującesp. z o.o. | $13,842.42 | labortronic.pl | ||
| UIFS.A. | $4,357.16 | unipress.waw.pl | ||
| Enegasp. z o.o. | $1,820.36 | enega.com.pl |
Change history
| Date | Event | |
|---|---|---|
| 2025-05-25 | Business resumed | |
| 2018-04-01 | Business suspended | |
| 2018-03-31 | Business resumed | |
| 2016-03-31 | Business suspended | |
| 2016-03-25 | Business resumed |
FAQ
Last updated: 2026-03-24