When was the company founded?

The company was registered in the Polish National Court Register (KRS) on January 21, 2009.

Where is the headquarters located?

The headquarters is located at: ul. Czerkaska 11, 85-636 Bydgoszcz.

What is the share capital?

The share capital of the company is PLN 50,000 (approx. $13,506).

What period do the latest financial data cover?

The latest available financial statement covers the period from January 1, 2025 to December 31, 2025.

Optosemsp. z o.o.

KRS: NIP: REGON:

Overview

Status

Active

Registry date

2009-01-21

Share capital

50,000.00 PLN

Activity description

Optosem Sp. z o.o. works with copper and fibre-optic networks used in telecommunications, data transmission, antenna systems and switching systems. The company also provides energy performance certificates for houses, apartments and other buildings, required for property sales, rentals and construction.

Registered address

ul. Czerkaska 11/7, 85-636 Bydgoszcz, Poland

Website

optosem.pl

Social media

Electronic delivery address

AE:PL-35467-82833-AGGJA-27

Financials

Revenue history (in k)

Filing timeliness

Financial statements were filed on time, on average 42 days early.

202525/05/2026
202408/06/2025
202322/06/2024
202223/06/2023
202128/06/2022
202004/07/2021

Filed on timeDelayFiling deadline

Data and insights are generated automatically from financial statements – they may contain errors and are neither a credit assessment nor business advice.

Statistics

How the company ranks by revenue within its industry, region and across Poland in 2025.

Results vs industry

Revenue

This companyUSD 27.54kMedianUSD 139.59kAverageUSD 1.43m

Net profit

This companyUSD 4.21kMedianUSD 274.12AverageUSD 142.64k

Operating costs

This companyUSD 21.13kMedianUSD 105.86kAverageUSD 1.16m

Assets

This companyUSD 33.30kMedianUSD 497.18kAverageUSD 3.93m

Industry

Offer

Copper cables
Fiber-optic cables
Copper networks
Fiber-optic networks
Energy performance certificates

Authorized Representatives

Dorota Beata Semrau – President of the Management Board

Manner of representation

Each member of the management board is independently authorised to make declarations of will on behalf of the company.

Ownership

Owner	Shares	Share value	Stake
Dorota Beata Semrauage 63	90	$12,155.59	90%
Sławomir Krzysztof Semrauage 43	10	$1,350.62	10%

Dorota Beata Semrau and Sławomir Krzysztof Semrau hold a combined 100% – the ownership structure indicates family control.

Beneficial owners

Person	Rights

Bank accounts

Registered as a VAT taxpayer on 2009-02-26.

PKO Bank Polski
35 1020 1475 0000 8002 0142 3839

Debt

No entries in the National Debtors Register (KRZ).

Real estate

Type	Amount
Buildings and premises	PLN 12,489PLN 12,489

Public aid

No public aid cases recorded in the last 10 years.

Competitors

	Name	Revenue	Website
	Kapital Inwestsp. z o.o.	$175,709.15	kapitaltechnik.pl

Change history

Date	Event
2018-07-05	Address change (Grunwaldzka 229, 85-438, Bydgoszcz → Ul. Czerkaska 11/7, 85-636, Bydgoszcz)
2011-05-31	PKD change (Added: 45.31.Z, 45.32.Z, 45.40.Z, 47.11.Z, 47.19.Z)
2009-02-18	Address change (Grunwaldzka 227, 85-438, Bydgoszcz → Grunwaldzka 229, 85-438, Bydgoszcz)
2009-01-21	Entered in the register

FAQ

Last updated: 2026-05-25