Step into the world of AC S.A. — the technology that powers millions of drivers around the globe. See how we combine innovation, experience, and state-of-the-art manufacturing to create solutions for the automotive industry of the future.
market leader
Values, Mission, and History
AC S.A. – market leader
The largest manufacturer of LPG systems in Poland
For 40 years, AC S.A. has been setting the pace for the development of autogas technology. Over a million vehicles in Poland and thousands of installers confirm our position as a leader. As the industry’s largest employer in the region, we employ over 700 specialists and develop solutions in the fields of LPG/CNG, automotive electronics, and parts distribution—consistently building our market advantage.
AC S.A. – a global partner
Our technology is usedstagin over 50 countries around the world
Our products are exported to over 50 countries, and 5 million vehicles worldwide are equipped with our systemsstag. International sales account for over 60% of our revenue, which underscores the strength of our brand and the trust of our global partners. Our responsible operations are supported by our in-house Research and Development Center, where innovations, prototypes, and solutions are developed to enhance the quality and efficiency of AC S.A.’s processes.
100%
Made in Poland
30+
Over 30 years in the market
800+
Employees
More than 50%
Women on the team
24,000 sq. ft.
of space
50+
Countries
market leader
Time travel
Milestones in our history, from our founding in 1986 to the present day.
1986
The founding of AC
1988
First export
1992
Expansion of the product range
1993
Electronics supplier
1995
Wire harness manufacturing
1997
AC BHZ
1999
Firststag
2003
ISO 9001:2000
2004
Whatu0026#x27;s New
2005
AC MINIKIT
2006
stag300
2007
AC, Inc.
2008
Company Growth
2009
Manufacturing of mechanical components
2010
stag300 Premium
2011
Stock Exchange
2012
CBiR
2013
Modern production facility
2014
Peru Branch
2014
Mobile app
2015
Generation Qstag
2020
Completion of the expansion of the companyu0026#x27;s headquarters
2020
Completion of the expansion of the companyu0026#x27;s headquarters
2025
stag500 GB
2025
STAGEV
The founding of AC
1986
AC Automotive Parts Manufacturing is being established; business profile:
manufacture of diesel fuel heaters for diesel engines;
manufacturing of automotive parts and mechanical components for cars.
First export
1988
Establishing a partnership with an Italian business partner for the import of automotive electrical components.
Expansion of the product range
1992
Expansion of the automotive product range to include plastic products (fuel lines, insulation sleeves, fuse links) and electronic components.
Establishing a partnership with a German business partner for the production and export of wiring harnesses for tow hooks.
Electronics supplier
1993
Establishing a partnership with a Belarusian supplier for the import of rectifier diodes; developing—in collaboration with engineers from Starachowice—the technology and commencing production of a new complete electrical control unit for Star vehicles; establishing a position as a major supplier of automotive electrical components to Polish car manufacturers.
Wire harness manufacturing
1995
Establishing a partnership with a German business partner for the production and export of wiring harnesses for tow hooks.
AC BHZ
1997
AC Foreign Trade Office is being established, with exports as its primary business activity.
Firststag
1999
Expansion of the company's operations to include wholesale and retail sales of all products manufactured by AC Wytwórnia Części Samochodowych S.C.
New Products: Seriesstag: E, G, W, L, 50, 100 - Electronic control systems for automotive gas systems
ISO 9001:2000
2003
Obtaining ISO 9001:2000 quality management certification.
Whatu0026#x27;s New
2004
New products: stag200 – for technologically advanced sequential electronic control systems for automotive gas systems;
New kits for car tow bars.
AC MINIKIT
2005
New Products:
stag200 universal controller featuring innovative injection technology and a new method of regulating the gas system;
MINIKIT AC ready-to-install automotive LPG kits;
the most economical version of thestagLPG-L system controller;
New kits for car tow bars.
stag300
2006
New Products:
trailer light controllers that use an advanced CAN communication interface for tow bar kits (to connect to the vehicle's computer and transmit commands and fault information);
design and launch ofstagthe 300 model in an aluminum housing;
New kits for car tow bars.
AC, Inc.
2007
Conversion into AC S.A.
Awards and honors:
the “Podlasie Business Ambassador” award for the highest share of exports in total sales in 2006;
the “Business Cheetahs 2007” award in the category “Most Dynamic Company in the Podlaskie Province” for growth in market value;
First place in the Manufacturing category of the Kurier Poranny Innovations 2007 ranking.
Key new products:
a new USB interface for LPG systems;
new kits for car tow bars;
Valtex gas valves, a new dashboard for Farmer tractors.
Company Growth
2008
a threefold increase in production capacity for controllers for automotive gas systems;
a twofold increase in production capacity for tow bar kits;
the purchase of two properties with a total building area of 5,500 square meters;
the purchase of automated production lines, including SMD machines for surface-mount assembly, a wave soldering line, plastic injection molding machines of various sizes, and machines for wire processing and assembly;
the launch of our own tool shop, equipped with modern machinery and equipment;
Implementation of an integrated MRP/ERP-class management support system;
Awards and honors:
First place in the “Podlasie Business Ambassador 2008” competition
6th place in the regional ranking of *Puls Biznesu*’s “Business Gazelles”;
Third place in the Production category of the Kurier Poranny and Strefa Biznesu Innovations 2008 ranking.
Key new products:
a new USB interface for LPG systems;
new kits for car tow bars;
Valtex gas valves, a new dashboard for Farmer tractors.
Manufacturing of mechanical components
2009
Recertification of the ISO 9001:2008 quality management system.
Awards and honors:
“Best Company of the Year 2009” in Kurier Poranny’s “Podlasie’s Top 100 Companies” ranking
First place in the category “Best Business Performance for 2009” in the Kurier Poranny ranking “Podlasie’s Top 100 Companies”;
Honorable mention in the “Podlasie Brand of the Year 2009” competition, in the product category, for thestag-300 Premium controller;
First place in the Production category of the Kurier Poranny and Strefa Biznesu Innovations 2009 ranking.
Key new products:
300 Plusstagcontroller with a 3D graphics map;
stag300 Premium – a new generation of controllers for automotive gas systems that communicate with any vehicle OBD system;
AC regulator – a mechanical component for automotive gas systems manufactured in-house;
New kits for car tow bars.
stag300 Premium
2010
purchase and implementation of an Oracle project management system
PRIMAVERA P6;
Participation in a pilot program with an Asian manufacturer regarding so-called "zero-kilometer" factory installation (factory installation of gas systems in new cars).
Awards and honors:
Innovative Company in the Regional Edition (Podlaskie Province) of the “National Leaders of Innovation and Development” INPRO 2011 competition —for thestag-300 Premium controller and the SXC 1011 scanner at the 2010 GasShow International Trade Fair;
An innovative product—stag300 Premium—in the Regional Edition (Podlaskie Province) of the " National Leaders of Innovation and Development" competition
First place in the Large Companies Manufacturing category of the Kurier Poranny and Strefa Biznesu Innovations 2010 ranking.
Key new products:
SXC 1011 Diagnostic Scanner (a workshop device for communicating with on-board diagnostic systems, which allows users to read, diagnose, and clear error codes, as well as view current operating parameters);
Parameter Recorder (designed to record the operating parameters of the throttle control unit during normal vehicle operation; a "black box"-type device);
New kits for car tow bars.
Stock Exchange
2011
On August 11, the company made a successful debut on the main market of the Warsaw Stock Exchange
Start of construction of the Research and Development Center;
Awards and honors:
Forbes Diamonds – 2nd place among the “Forbes Diamonds” in the Podlaskie Province and 21st place in the national ranking;
Certificate of Innovation – Ranked 29th among the most innovative companies in Poland, according to a ranking compiled by the Institute of Economic Sciences of the Polish Academy of Sciences and the MSN Scientific Network;
INPRO 2011 – atstag400 DPI at the GasShow 2011 International Trade Fair;
Super Companies 2011 – an award recognizing the best companies that adhere to the principles of socially responsible business;
“Forbes&Onet e-Diamond” – for the best corporate website in the Podlaskie Voivodeship
Key new products:
stag400 DPI MODEL A1 – a controller designed specifically for VW Group direct-injection engines (one of the first in the world to guarantee precise fuel metering across the entire RPM range);
The 300 ISAII—a controller based on the proven and reliable 300 PLUSstagsystem—has been upgraded with a second-generation Intelligent Auto-Adaptation System, which continuously fine-tunes the throttle controller to the engine in real time;
stag-4 Plus - a miniaturized microprocessor-based controller with extensive configuration options; new kits for automotive tow bars.
CBiR
2012
Opening of the Research and Development Center
New products:
stag-4 QBOX
stagDIESEL
Modern production facility
2013
Launch of a state-of-the-art production facility
New products:
stag-4 QBOX PLUS
stagGoFast
Peru Branch
2014
Opening of the Company’s first-ever overseas branch in Peru
Mobile app
2014
New products:
stagAC W03
stagAC R02
stagR14
stagR01 CS
stagTUNING
mobile app for Android
Generation Qstag
2015
The Q-Generation of controllers is beingstagdeveloped. This is a family of smart devices designed for engines with indirect fuel injection, featuring advanced self-adaptation and 32-bit processors.
Completion of the expansion of the companyu0026#x27;s headquarters
2020
In 2020, the expansion of the company’s building at 42nd Infantry Regiment Street in Białystok was completed, increasing its size from 17,400 to 24,000 square meters. Thanks to the renovation, we have gained new space for growth to maximize our potential.
Completion of the expansion of the companyu0026#x27;s headquarters
2020
In 2020, the expansion of the company’s building at 42nd Infantry Regiment Street in Białystok was completed, increasing its size from 17,400 to 24,000 square meters. Thanks to the renovation, we have gained new space for growth to maximize our potential.
stag500 GB
2025
A new, universal LPG controller for direct-injection engines.
STAGEV
2025
Launch of electric vehicleSTAGEVchargers.
We turn technology into tangible benefits for our customers
Our mission
A trusted partner with a global reach, committed to a sustainable world
Our vision
A company in Peru
Thanks to this sales offensive and in response to market expectations, AC S.A. opened its first overseas branch in Peru in 2014. This represents a major step forward, a significant investment, and the consistent pursuit of the Company’s ambitions. The very high interest in thestagbrand’s products in South America influenced the decision to continue the company’s dynamic growth in that region of the world. The branch in Peru is now actively operating and gaining an increasingly strong reputation. We expect further success.
State-of-the-art machinery
The Company’s leading position in the field of autogas installations has also been achieved thanks to its modern machinery, which is characterized by precision, speed, and reliability. Most components are manufactured using fully automated, precise, and highly efficient production lines consisting of machines and equipment produced by industry leaders—Fuji, Speedline Technologies, and Ersa. To maintain its leading position in the industry, AC SA continuously modernizes its machinery and equipment. Production at AC SA is carried out in three main production departments: Electronics (including SMD), Electrical Harnesses, and the Mechanical Department.
AC S.A. Research and Development Center
AC S.A. is constantly seeking new solutions to meet the evolving needs of the market and its customers. Based on the company’s mission, vision, and values, a modern Research and Development Center was established—a space where new concepts, projects, and technologies are born. It spans over 2,000 m² of specialized laboratories and test zones, where engineers and technicians work on the next generation of products. CBR AC S.A. operates laboratories, dynamometers, and vehicle modification workshops, supported by teams of electronics engineers, mechanics, and IT specialists. Collaboration between departments and intensive research processes enable the development of alternative powertrain technologies and the refinement of manufacturing processes. This is where the innovations that define the future of alternative powertrains are born.
Learn more about AC S.A.
Management Board and Supervisory Board
The people who set the direction. Responsible decisions, strategic thinking, and oversight of the company’s development.
