Marmarabirlik
A Turkish agricultural cooperative union that purchases, processes, packages, and markets table olives, olive oil, and olive paste.
Last updated August 24, 2026
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Overview
Marmarabirlik is a Turkish union of agricultural sales cooperatives focused on olives and olive-derived foods. It was established on June 28, 1954, when the Gemlik, Mudanya, and Erdek olive agricultural sales cooperatives joined together to coordinate purchasing, processing, and marketing for growers in the southern Marmara region. The organization is cooperative in structure: its production base consists of olive farmers who participate through member cooperatives, rather than a conventional shareholder-owned food manufacturer. The union expanded its regional network during the following decades. Orhangazi joined in 1955, followed by İznik in 1970, Edincik in 1976, Mürefte in 1986, and Marmara Island in 1988. These additions extended Marmarabirlik's operating area from the vicinity of Lake İznik across the southern coast of the Sea of Marmara and toward Mürefte. The eight participating cooperatives collectively give the organization a broad grower and procurement base. Marmarabirlik's core business is the purchase of fresh olives from members, followed by natural fermentation, processing, storage, packaging, and distribution. Its principal products are green and black table olives, olive oil, and olive paste. The company markets products under the Marmarabirlik, Marbir, and Unimar names and has used approximately 225 package formats, including around 205 formats for table olives. Its natural-fermentation approach places untreated olives directly into brine, without the addition of preservatives, according to the referenced company description. The organization has been described as Turkey's largest olive producer by purchasing, processing, and sales capacity. The reference material reports average annual purchasing, processing, and sales capacity of about 30,000 tonnes of olives. Its domestic distribution network has included 58 dealers serving 78 Turkish provinces, while contracted buyers and distributors have supported exports to Europe and markets in North America and Australia. The product portfolio and packaging system allow Marmarabirlik to serve both everyday retail demand and broader food-distribution channels. In addition to buying and selling olives, Marmarabirlik provides member farmers with agricultural inputs, technology, and cash-credit support. In April 2011, it signed a protocol with Ziraat Bank to facilitate agricultural credit for members. This support role reflects the union's cooperative purpose: helping growers finance production and connect their harvests with an integrated processing and sales system. Storage and industrial infrastructure are central to the business because olive quality and fermentation require controlled handling over time. Marmarabirlik developed licensed-storage facilities through a project associated with Turkey's agricultural-storage reforms and World Bank-supported financing. Facilities described in the reference material include licensed olive-storage sites at Başköy and Erdek and a licensed olive-oil storage facility at Başköy. The organization also operates large-scale packing and olive-oil processing facilities in Bursa. Marmarabirlik remains an active Turkish food and agricultural cooperative brand. Its identity combines regional producer representation, industrial-scale olive handling, packaged food manufacturing, and domestic and international distribution. The available reference material identifies İsmail Acar as general manager and Hidamet Asa as chairman of the board, but does not provide a current corporate profile beyond those roles.
History
Marmarabirlik was created on June 28, 1954, as a Union of Agricultural Sales Cooperatives serving olive growers in the southern Marmara region of Turkey. Its founding members were the Gemlik, Mudanya, and Erdek olive agricultural sales cooperatives. The union was designed to allow growers to act collectively in purchasing, processing, and marketing olives, while also supporting members through cooperative services. The organization expanded its membership and geographical reach after formation. Orhangazi joined in 1955. During the 1970s and 1980s, additional olive cooperatives entered the union: İznik in 1970, Edincik in 1976, Mürefte in 1986, and Marmara Island in 1988. The resulting eight-cooperative structure connected olive-producing communities extending from the Lake İznik area along the southern Marmara coastline toward Mürefte. This expansion increased the union's procurement base and made it possible to coordinate production and marketing across a wider regional harvest. Marmarabirlik developed from a cooperative marketing organization into an integrated olive-processing and food-distribution system. Its activities include purchasing fresh olives from members, processing them through natural fermentation, producing olive oil and olive paste, packaging finished products, and distributing them through Turkish dealers and export partners. The reference material describes average annual purchasing, processing, and sales capacity of approximately 30,000 tonnes of olives. It also identifies the union as Turkey's largest olive producer by purchasing, processing, and sales capacity. The union's infrastructure includes a large Bursa operating site, substantial olive storage, daily olive packing capacity, and olive-oil processing and filling capacity. The described facilities occupy approximately 403,000 square metres, with around 136,000 square metres of building area. The reference material reports storage capacity of approximately 70,400 tonnes, olive packing capacity of about 150 tonnes per day, and olive-oil production and filling capacity of roughly 220 tonnes per day. It also states that more than 600 workers were employed throughout the union, although the applicable date for that figure is not specified. Storage modernization became an important stage in Marmarabirlik's development. Turkey introduced a licensed agricultural-storage framework during the 2000s, supported in part by a World Bank agricultural-reform loan. Marmarabirlik undertook a licensed-storage project that began at the end of 2007 and was completed at the end of 2008. The project included a 7,000-tonne licensed olive store at Başköy, an 8,000-tonne facility at Erdek, and a licensed olive-oil storage facility at Başköy with a stated capacity of 5,800 litres. The project used glass-reinforced-plastic tanks for olive preservation and natural fermentation and stainless-steel tanks for olive-oil storage, according to the cited reference. Marmarabirlik also provides services intended to strengthen the production base. These include access to technology, agricultural inputs, and cash-credit arrangements. In April 2011, it entered into a protocol with Ziraat Bank to provide agricultural credits for members. Such activities complement its core role as a collective buyer and processor by helping farmers finance cultivation and participate in the union's supply chain. The finished portfolio has been sold under the Marmarabirlik, Marbir, and Unimar trade names. Table olives are offered in a broad range of green and black varieties and package formats, while olive oil and olive paste extend the product range beyond whole olives. Domestic sales have been supported by a dealer network reaching most of Turkey, and exports have been reported to European markets as well as Canada, the United States, and Australia. The referenced Wikipedia article identifies İsmail Acar as general manager and Hidamet Asa as chairman of the board. No additional reliable information in the supplied material establishes the dates of their appointments or documents subsequent leadership changes. Marmarabirlik is therefore best characterized as an active, regionally rooted Turkish cooperative brand whose scale derives from the combination of farmer membership, centralized processing, storage infrastructure, packaged-food marketing, and export distribution.
- 2011
Agricultural-credit protocol is signed
[1]Marmarabirlik signs a protocol with Ziraat Bank to support agricultural credit for member farmers.
- 2008
Licensed-storage facilities are completed
[1]The Başköy and Erdek licensed olive-storage facilities and the Başköy olive-oil storage facility are reported as completed.
- 2007
Licensed-storage project begins
[1]Marmarabirlik begins construction of licensed olive and olive-oil storage facilities as part of an agricultural-storage modernization project.
- 1988
Marmara Island joins
[1]The Marmara Island Olive Agricultural Sales Cooperative becomes the eighth member cooperative.
- 1986
Mürefte joins
[1]The Mürefte Olive Agricultural Sales Cooperative joins the expanding regional union.
- 1976
Edincik joins
[1]The Edincik Olive Agricultural Sales Cooperative becomes a member.
- 1970
İznik joins
[1]The İznik Olive Agricultural Sales Cooperative enters the Marmarabirlik union.
- 1955
Orhangazi joins the union
[1]The Orhangazi Olive Agricultural Sales Cooperative becomes the fourth member cooperative.
- 1954
Marmarabirlik is established
[1]Gemlik, Mudanya, and Erdek olive agricultural sales cooperatives form the Union of Agricultural Sales Cooperatives known as Marmarabirlik.
Products and positioning
A major Turkish olive cooperative combining farmer membership, regional procurement, natural-fermentation processing, packaged olive products, and integrated domestic and export distribution.
Table olives
Green table olives
Marmarabirlik markets packaged green table olives in multiple formats. The supplied reference describes the company's table olives as naturally fermented: untreated olives are placed directly in brine, with no added preservative identified in the description. Green olives form one of the union's principal packaged-food categories and are distributed through Turkish dealers and export channels.
Table olives
Black table olives
Black table olives are a core Marmarabirlik product line and are sold in a wide range of package sizes and formats. The union's processing system is tied to its regional grower network and controlled storage infrastructure, allowing harvested olives to be processed and marketed as packaged retail products for Turkey and overseas markets.
Edible oils
Olive oil
Marmarabirlik produces and fills olive oil in Bursa and markets it alongside its table-olive portfolio. The supplied material describes dedicated olive-oil storage and production infrastructure, including stainless-steel storage tanks in the licensed-storage project. Specific grades, blends, and launch dates are not established in the available sources.
Olive-based spreads
Olive paste
Olive paste extends Marmarabirlik's offering from whole olives into processed olive-based foods. It is included among the union's packaged products and is sold under the organization's trade-brand system. The supplied sources do not specify individual recipes, varieties, or product launch dates.
Brand decisions
2011
Member-farmer credit partnership with Ziraat BankStrategyBackground
Olive growers require seasonal financing for agricultural inputs and production activities.
Action taken
Marmarabirlik signed a protocol with Ziraat Bank to provide agricultural credit to members.
Aftermath
The arrangement expanded the cooperative's support role beyond procurement and processing by helping members access production finance.
2007
Investment in licensed olive and olive-oil storageStrategyBackground
Turkey's licensed agricultural-storage framework encouraged producer organizations to improve storage, quality control, and agricultural trading infrastructure.
Action taken
Marmarabirlik began a project covering licensed olive storage at Başköy and Erdek and licensed olive-oil storage at Başköy, using specialized tanks for olive fermentation and oil preservation.
Aftermath
The facilities were reported as completed by the end of 2008, strengthening the union's integrated procurement, storage, processing, and marketing system.
Recent events
- 2011
Marmarabirlik signs agricultural-credit protocol with Ziraat Bank[1]
Other
The cooperative signed a protocol with Ziraat Bank intended to provide agricultural credit to its member olive farmers.
- 2008
Marmarabirlik develops licensed olive-storage infrastructure[1]
Other
The cooperative completed licensed-storage construction associated with its Başköy and Erdek olive facilities and its Başköy olive-oil storage facility.
Sources2 sources
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