Vehicle parts from VIEROL: We provide mobility.

VIEROL AG is a successful international specialist for electronic components and engine management in the automotive sector. We deliver more than 43,000 high-quality vehicle parts in 125 countries on all continents. The product portfolio of our quality brands VEMO, VAICO and ACKOJA goes from EGR valves to timing belts. As an owner-managed, family company with its headquarters in Oldenburg, Germany, and subsidiaries in Shanghai and Singapore, we guarantee mobility worldwide with our automotive replacement parts.










15 October 2021
VIEROL AG opens new logistics centre WERK II

  Modern logistics concepts, expanded storage capacities and a high degree of automation will ensure increasing efficiency of the work processes in the future in the supply of spare parts to the worldwide trade customers. After only one year of construction, VIEROL AG has ceremoniously opened its new logistics centre in Rastede. The expansion through […] Read more


10 September 2021
VIEROL acquires officer’s mess with around 68,000 m² at the Zwischenahner Meer

  • A variety of utilisation concepts are planned in the middle of the extensive lakeside property in the spa town of Bad Zwischenahn • Further investments of up to 4 million euros flow into the overall project VIEROL AG has signed a purchase agreement for the officers’ mess and the associated grounds. “We are […] Read more


06 September 2021
Donation to the Elisabeth Children’s Hospital

  At this year’s Oldenburg State Tournament, 10 € were collected for the Friends of the Elisabeth Children’s Hospital Association with every successful jump over the VIEROL/CARNATURA obstacle. The riders were very successful and an amount of 3,310 euros was collected. The donation was handed over by Mirja Viertelhaus-Koschig (Chairwoman of the Executive Board VIEROL […] Read more


05 July 2021
Expansion of the VIEROL company headquarters – completion after only 15 months

  • Furnishing and relocation are about to be completed • Only 15 months of construction time since the foundation stone laying ceremony in February 2020 • The newly constructed building will double VIEROL AG’s office space After the approval by the building supervision authorities of the City of Oldenburg, the new building will become […] Read more


17 December 2020
Review of the year

No year like any other We ensure mobility – even in times of crisis. The importance of VIEROL AG’s promise was particularly evident this year. The Corona pandemic did not stop at the automotive industry and posed considerable challenges to the parts trade and workshops worldwide. Despite a lockdown in many places, VIEROL AG succeeded […] Read more

We provide mobility in more than 125 countries. With leading German automotive engineering.

Success, that continues to carry us further: our three quality brands VEMO, VAICO and ACKOJA benefit from decades of experience of VIEROL AG in the international Independent Automotive Aftermarket.

Our History

VIEROL AG was founded in 1977 by Jürgen R. Viertelhaus. The Oldenburg-based company has grown continuously since then and has firmly established itself in the market as an international specialist for electronic components and engine management.

The Board of VIEROL AG - a successful company with strong leadership

Since January 1st, 2016, the family-owned company has been managed by Mirja Viertelhaus-Koschig, daughter of company founder Jürgen R. Viertelhaus.

„Our company’s success is based on the high level of commitment and the professional qualifications of our employees“

– says Mirja Viertelhaus-Koschig, CEO of VIEROL AG

Ulf R. Koschig (right), Deputy Chairman, joined the company in 1995 and is responsible for the Sales and Marketing division of the board. Since July 2019, Michael Krone (left) has strengthened the management team as a new member of the board for IT and Logistics.

Ulf R. Koschig – Deputy Chairman of VIEROL AG

Ulf R. Koschig has been active in a leading sales position at VIEROL AG since 1995. He has been responsible for the Sales and Marketing areas in the board since 2001. He is also the managing partner of VIEROL Asia Pte. Ltd.

„Innovation is no guarantee against failure, but without innovation failure is guaranteed.“

– Stefan R. Munz

The company founder: Jürgen R. Viertelhaus

After a professional career in the international automotive business, Jürgen R. Viertelhaus founded VIEROL AG on 31 January 1977 in Rastede, Germany. The following decades saw many significant milestones being reached that very positively influenced the development of our medium-sized family company.

Profitable, financially sound, organisationally and strategically well positioned – VIEROL AG will also continue to master the business challenges in the coming years.

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