Diebels
A German beer brand from Issum best known for its traditional top-fermented Altbier.
Last updated August 22, 2026
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Overview
Diebels is a German beer brand and brewery associated with Issum in the Lower Rhine region of North Rhine-Westphalia. Founded in 1878 by Krefeld master brewer Josef Diebels, the brewery developed from a regional producer into one of Germany's best-known specialists in Altbier, a dark copper-colored, top-fermented beer style strongly associated with the Lower Rhine and Düsseldorf area. During its early decades, Diebels expanded steadily. Production reached 10,000 hectoliters annually by 1898, and the brewery employed 27 people while producing approximately 24,500 hectoliters in 1928. Although the Second World War affected the business, the brewery reportedly suffered relatively limited physical destruction, allowing it to benefit from the postwar economic recovery. Output had risen to 175,000 hectoliters by 1967. The company's defining strategic shift occurred in the early 1970s. Rather than continuing as a broadly diversified local brewery, Diebels concentrated on a single specialist identity centered on top-fermented Altbier. This focus helped the brand build nationwide recognition and become one of Germany's largest Altbier producers. Production reached 500,000 hectoliters in 1975 and approximately one million hectoliters six years later. The brand's core product, Diebels Alt, became the principal expression of this positioning: a traditional German beer presented through a consistent national brand rather than only as a local brewery specialty. Diebels subsequently broadened its range in stages. In 1987 it introduced Issumer Alt alcohol-free, described as the first alcohol-free Altbier from the brewery. After almost three decades of concentrating on Altbier, the company added Diebels Pils in 2005, giving the portfolio a beer brewed in the Pilsner style. Other products associated with the label include Diebels Alkoholfrei, Diebels Light, and Dimix mixed-beer drinks, including cola- and strawberry-lemonade-based variants. The brewery remained privately held until 2001, when it was acquired by the Interbrew Group for the equivalent of approximately 100 million euros. After a short period of association with Beck & Co., German sales activities for breweries in the Interbrew/InBev system were consolidated in 2003. Diebels therefore became part of the wider corporate beer portfolio that later operated under Anheuser-Busch InBev. The Issum site has also been used for bottling products from other breweries in the group, including Beck-related products. The brand has experienced substantial production pressure since the early 2000s. Output was reported at 1,006,000 hectoliters in 2005, down two percent from 2004 and about one-third from 2001. The launch of Diebels Pils provided only temporary stabilization, and reported production fell to 350,000 hectoliters in 2016. These figures illustrate the contrast between Diebels' historic position as a major Altbier producer and the later contraction of its brewing volume. In 2018, Anheuser-Busch InBev announced plans to sell Diebels together with the Hasseröder brewery to CK Corporate Finance. The proposed transaction did not close because the prospective buyer failed to satisfy all contractual completion requirements by the intended mid-2018 deadline. Discussions with other potential buyers were reported to continue. The available reference material does not establish a completed transfer, so Diebels is treated here as an Anheuser-Busch InBev brand with an Issum brewing identity. Its public profile remains anchored in traditional German Altbier, while its historical sponsorships and broader product range have helped extend recognition beyond its regional origins.
History
Brauerei Diebels was established in 1878 in Issum by Josef Diebels, a master brewer from Krefeld. Its early growth was gradual but measurable: the brewery produced 10,000 hectoliters in 1898 and approximately 24,500 hectoliters while employing 27 people in 1928. The company experienced the disruptions of the Second World War, but the available account describes relatively limited destruction at the site. Postwar economic recovery then provided the conditions for renewed expansion, with annual production reaching 175,000 hectoliters by 1967. Until the early 1970s, Diebels operated as a comparatively broad local brewery, producing several beer types commonly found in Germany. Management then adopted a specialist strategy focused on Altbier. Altbier is a top-fermented beer style particularly associated with the Lower Rhine and Düsseldorf region. By concentrating its identity and production on this style, Diebels moved from regional prominence toward national recognition. The strategy made the brand one of Germany's leading Altbier breweries, with a reported market share above 50 percent within the German Altbier segment. Production reached 500,000 hectoliters in 1975 and approximately one million hectoliters in 1981. The brewery continued to build its specialist credentials while adding selected extensions. In 1987 it launched Issumer Alt alcohol-free, presented as the brewery's first alcohol-free Altbier. The range later included Diebels Alkoholfrei and Diebels Light, as well as Dimix mixed drinks based on Diebels Alt. On February 13, 2005, the company expanded beyond its long-standing Altbier specialization by introducing Diebels Pils. The product had been publicly announced in the preceding year and represented an attempt to participate in the larger Pilsner segment. Ownership changed in 2001, when the Interbrew Group purchased the previously private brewery. The reported transaction value was approximately 100 million euros. Diebels was briefly associated with Beck & Co. before German sales activities for breweries in the Interbrew system were consolidated in 2003 under Interbrew Deutschland Vertriebs GmbH & Co. KG. Following later corporate developments, Diebels became part of Anheuser-Busch InBev's German brand and brewery network. The Issum facility also bottled products connected with other breweries in the group. The company's later history was marked by a significant fall in production. Output in 2005 was reported at 1,006,000 hectoliters, two percent below 2004 and roughly one-third below 2001. The addition of Diebels Pils offered only temporary support. By 2016, reported production had decreased to 350,000 hectoliters. These figures describe brewery output and should not be read as brand sales or revenue. In January 2018, Anheuser-Busch InBev announced a proposed sale of Diebels together with the Hasseröder brewery to CK Corporate Finance GmbH, a financial investor based in Kronberg im Taunus. The transaction was expected to close by mid-2018, but it failed to complete after the buyer did not meet all contractual conditions. The reference account states that discussions with other potential buyers continued, but does not document a completed subsequent sale. Diebels' historical identity therefore remains tied to Issum, its Altbier specialization, and its place within the Anheuser-Busch InBev portfolio.
- 2018
Proposed divestment does not close
[1]A proposed sale of Diebels and Hasseröder to CK Corporate Finance failed to complete because contractual completion requirements were not met.
- 2016
Reported output falls to 350,000 hectoliters
[1]Annual brewery production was reported at 350,000 hectoliters.
- 2005
Diebels Pils launched
[1]The brewery added a Pilsner-style beer after nearly three decades of strong Altbier specialization.
- 2003
German sales activities consolidated
[1]Sales activities for breweries in the Interbrew German network were consolidated under Interbrew Deutschland Vertriebs GmbH & Co. KG.
- 2001
Acquisition by Interbrew
[1]Interbrew acquired the previously privately held brewery.
- 1987
Alcohol-free Altbier introduced
[1]Diebels introduced Issumer Alt alcohol-free, an alcohol-free version of its Altbier style.
- 1981
Production reaches approximately one million hectoliters
[1]Six years after reaching 500,000 hectoliters, the brewery reported annual production of approximately one million hectoliters.
- 1975
Production reaches 500,000 hectoliters
[1]The Altbier specialization helped raise annual production to 500,000 hectoliters.
- 1967
Production reaches 175,000 hectoliters
[1]Annual output grew to 175,000 hectoliters before the brewery's later Altbier-focused expansion.
- 1928
Interwar expansion
[1]The brewery employed 27 people and produced approximately 24,500 hectoliters.
Products and positioning
Traditional German beer brand centered on Lower Rhine Altbier, with extensions into alcohol-free, reduced-alcohol, Pilsner, and mixed-beer products.
Altbier
Diebels Alt
Diebels' core beer and the product most closely associated with the brand. It is a traditional top-fermented Altbier from the Lower Rhine brewing tradition, with reported alcohol content of 4.9 percent by volume. The beer anchors the brand's specialist positioning and its historical shift from a broad local brewery into a nationally marketed Altbier producer.
Alcohol-free beer · 1987
Diebels Alkoholfrei
An alcohol-free version of the Diebels Altbier proposition. It belongs to the brewery's long-running effort to offer a non-alcoholic interpretation of its core beer style, a direction that can be traced to the introduction of Issumer Alt alcohol-free in 1987.
Reduced-alcohol beer
Diebels Light
A lighter Diebels Altbier variant described in the reference material as containing 40 percent less alcohol than the standard Altbier. It extends the brand's core style into a lower-alcohol format.
Pilsner beer · 2005
Diebels Pils
A Pilsner-style beer introduced in February 2005. Its launch marked a strategic broadening after almost 30 years in which the brewery had concentrated heavily on Altbier. The product was intended to stabilize production, but the available account says that effect lasted only briefly. Its reported alcohol content is 4.9 percent by volume.
Mixed beer drink
Dimix
A mixed beer drink based on Diebels Alt and blended with cola. It represents the brand's extension beyond conventional beer formats into flavored and ready-mixed beverages.
Mixed beer drink
Dimix Erdbeer
A strawberry-flavored mixed beer drink based on Diebels Alt and strawberry lemonade. It is part of the Dimix range of flavored extensions.
Marketing campaigns
- 1994Borussia Mönchengladbach shirt sponsorship
Germany
Diebels was the shirt sponsor of Borussia Mönchengladbach from 1994 to 1997, giving the brand prominent exposure through another major football club in North Rhine-Westphalia.
Outcome. The sponsorship ended in 1997.
- 1993Fortuna Düsseldorf shirt sponsorship
Germany
Diebels sponsored Fortuna Düsseldorf on its football shirts from 1993 to 1998, reinforcing its association with the Lower Rhine and Düsseldorf-area beer culture.
Outcome. The partnership ran for five years and ended in 1998.
- 1990German Touring Car Championship involvement
Germany
During the 1990s, Diebels participated in German Touring Car Championship racing with drivers Kurt Thiim and Jörg van Ommen of Moers, extending the brand's sports marketing beyond football.
Outcome. The available reference identifies the 1990s involvement but does not specify a complete campaign period or sporting outcome.
- 1977MSV Duisburg shirt sponsorship
Germany
Diebels served as a shirt sponsor of German Bundesliga club MSV Duisburg from 1977 to 1981, supporting the brand's visibility during its period of rapid national expansion.
Outcome. The sponsorship connected the brewery with Bundesliga football and continued until 1981.
Brand decisions
2018
Attempted sale to CK Corporate FinanceM&ABackground
Anheuser-Busch InBev announced plans to divest Diebels together with the Hasseröder brewery.
Action taken
The proposed buyer was CK Corporate Finance GmbH, a financial investor based in Kronberg im Taunus.
Aftermath
The transaction failed to close because the investor did not meet all contractual requirements by the intended mid-2018 completion date. The available source says discussions with other potential buyers continued but does not document a completed sale.
2005
Expand into Pilsner beerProduct launchBackground
After almost 30 years of concentrating on Altbier, Diebels sought to broaden its portfolio and support brewery production.
Action taken
The brewery launched Diebels Pils on February 13, 2005.
Aftermath
The product reportedly stabilized production only temporarily. Total output was reported at 1,006,000 hectoliters in 2005 and later fell to 350,000 hectoliters in 2016.
Annual beer production. 1,006,000 hectoliters in 2005 (2005)
1987
Introduce alcohol-free AltbierProduct launchBackground
The brewery had built its identity around Altbier and sought to extend that proposition into a non-alcoholic format.
Action taken
Diebels introduced Issumer Alt alcohol-free.
Aftermath
The launch established an alcohol-free branch of the brand's Altbier range; later reference materials list Diebels Alkoholfrei among the label's products.
1970
Adopt an Altbier specialist strategyStrategyBackground
Until the early 1970s, the local brewery produced several beer styles. The company then sought a clearer market identity.
Action taken
Diebels concentrated its brewing and brand-building activities on top-fermented Altbier and used that specialization to pursue nationwide recognition.
Aftermath
The strategy helped make Diebels one of Germany's largest Altbier breweries, with production reaching 500,000 hectoliters in 1975 and approximately one million hectoliters in 1981.
Recent events
- 2018
Planned sale of Diebels and Hasseröder fails to close[1]
M&A
Anheuser-Busch InBev announced an intended sale of Diebels and Hasseröder to CK Corporate Finance. The transaction did not complete after the prospective buyer failed to meet all contractual requirements by the planned closing period.
- 2016
Diebels production declines to 350,000 hectoliters[1]
Other
Reported annual production at the Issum brewery fell to 350,000 hectoliters, substantially below the volume recorded in the mid-2000s.
- 2005
Diebels expands its range with Diebels Pils[1]
Product launch
After decades of concentrating on Altbier, the brewery added a beer brewed in the Pilsner style. The expansion was intended to broaden the portfolio, although its stabilizing effect was reported to be short-lived.
- 2001
Diebels is acquired by the Interbrew Group[1]
M&A
The previously private brewery was acquired by the Interbrew Group in a transaction reported at the equivalent of approximately 100 million euros.
Sources2 sources
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