Sivensa
A Venezuelan steel producer and industrial group founded in 1948.
Last updated August 26, 2026
Overview
Sivensa, formally Siderúrgica Venezolana, S.A., is a Venezuelan steel company founded in 1948. It was established to manufacture reinforcing bar, wire rod, structural steel, and related steel products for Venezuela’s developing industrial and construction markets. The company’s founding capital was two million bolívars, and its largest initial shareholder was Miles Meyer Sherover, an Israeli-American industrialist. Other founding shareholders included Robert Turgot Brinsmade, Warren William Smith, Oscar Augusto Machado, and Carlos Morales. Sivensa produced its first steel cast in 1950. Its initial production capacity was reported as five tons per year, but the company expanded substantially during the following decade. By 1957, its Antímano plant in Caracas was producing approximately 65,000 tons of reinforcing bar, although the facility relied on obsolete machinery and equipment. In the same year, Sivensa acquired a 50 percent interest in Recuperadora General Venezolana C.A., known as Regeveca, a company involved in the purchase and sale of scrap metal. This investment connected the steel business with domestic ferrous-material collection and recycling. Leadership changed several times during the company’s early development. Sherover served as president from 1956 to 1959, after which Oscar Machado Zuloaga became president. Angel Cervini subsequently led the company until 1979. The business later developed beyond conventional steelmaking and became associated with a broader group of Venezuelan industrial operations. One principal division identified in reference material is International Briquettes Holding, or IBH, which sells iron briquettes and iron pellets. Sivensa experienced a major financial and operational crisis in 1998, associated mainly with the effects of the Asian financial crisis. The downturn reduced the scale of the company and left it with substantial debt. Its position was also affected by the structure of Venezuela’s steel industry. SIDOR, the country’s largest steel producer, was nationalized in 2008. Sivensa was described as the largest private-sector steel producer in Venezuela at that time and as the country’s second-largest steel producer overall. The company’s most consequential later event was the government expropriation of Sidetur, its largest and most important steel subsidiary, in 2010. Sidetur marketed steel and operated production assets and ferrous-material collection infrastructure in Venezuela. Before and around the expropriation period, facilities associated with Sivensa and Sidetur were located in the states of Bolívar, Carabobo, Miranda, Lara, and the Federal District. Sidetur also operated 14 ferrous-material collection centers in different Venezuelan cities. The expropriation significantly changed Sivensa’s industrial footprint and reduced the scope of its private-sector steel operations. Sivensa’s historical positioning has therefore combined domestic steel production, scrap-metal recovery, and iron-based intermediate products. Its legacy is tied to Venezuela’s industrialization, the expansion of electric and conventional steelmaking capacity, and the changing balance between private enterprise and state ownership in the Venezuelan steel industry. Detailed current information about its ownership, production levels, management, website, and operating status is not established in the supplied reference material.
History
Sivensa was created in Venezuela in 1948 under the formal name Siderúrgica Venezolana, S.A. Corporate documents were registered in October of that year, with founding capital of two million bolívars. Miles Meyer Sherover held the largest founding shareholding. The other named founding shareholders were Robert Turgot Brinsmade, Warren William Smith, Oscar Augusto Machado, and Carlos Morales. The company’s initial purpose was to produce reinforcing bar, wire rod, structural products, and other forms of steel needed by Venezuela’s construction and industrial economy. The first steel cast was made in 1950. Although the initial reported capacity was only five tons per year, Sivensa expanded rapidly. By 1957, its Antímano plant in Caracas was producing about 65,000 tons of reinforcing bar. The plant’s equipment was described as obsolete, indicating that the company’s growth was accompanied by continuing modernization challenges. Also in 1957, Sivensa purchased half of Recuperadora General Venezolana C.A., or Regeveca. Regeveca bought and sold scrap metal in Venezuela, giving Sivensa a connection to the supply and recovery of ferrous materials. Sherover became president in 1956 and remained in that role until 1959. Oscar Machado Zuloaga then assumed the presidency, followed later by Angel Cervini, who led the company until 1979. These transitions occurred during the period in which Sivensa was becoming an established Venezuelan industrial enterprise rather than a small single-facility steelmaker. The group subsequently developed interests beyond finished steel. Reference material identifies International Briquettes Holding, or IBH, as a principal division selling iron briquettes and iron pellets. This activity placed Sivensa in the market for steelmaking intermediates as well as conventional steel products. Sidetur became another central part of the group. It sold steel, operated production facilities, and maintained a network of ferrous-material collection centers. Sivensa was severely affected by the international economic environment in 1998. The Asian financial crisis contributed to a substantial corporate crisis, reducing the size of the business and generating significant debt. Its later history unfolded amid the increasing role of the Venezuelan state in the steel sector. SIDOR, the country’s largest steel producer, was nationalized in 2008. At that point Sivensa was described as Venezuela’s second-largest steel producer overall and the largest remaining private-sector steel producer. In 2010, the Venezuelan government expropriated Sidetur, Sivensa’s largest and most important subsidiary. The expropriation removed a major part of Sivensa’s steel business from private ownership. Facilities associated with Sidetur and the wider Sivensa industrial network were located in Bolívar, Carabobo, Miranda, Lara, and the Federal District. Sidetur also had 14 ferrous-material collection centers distributed among Venezuelan cities. The takeover therefore affected not only steel manufacturing but also the collection and supply infrastructure supporting the industry. Sivensa’s documented history illustrates the development of Venezuela’s private steel sector, from early domestic production and scrap recovery to a diversified industrial group with iron-intermediate products. It also reflects the sector’s exposure to international financial shocks and state intervention. The supplied reference does not establish the company’s current ownership, production volume, management, website, or operating condition, so its present status remains uncertain.
- 2010Sidetur is expropriated
The Venezuelan government expropriated Sidetur, Sivensa’s largest and most important subsidiary, along with associated steel and ferrous-material collection operations.
- 2008Sidor is nationalized
The nationalization of Sidor made Sivensa the largest private-sector steel producer in Venezuela according to the cited reference.
- 1998Corporate crisis linked to the Asian financial crisis
The international downturn reduced Sivensa’s scale and left the company with substantial debt.
- 1957Antímano plant expands reinforcing-bar production
The Antímano plant in Caracas was producing approximately 65,000 tons of reinforcing bar, despite reliance on outdated machinery. Sivensa also acquired a 50 percent stake in Regeveca.
- 1950First steel cast
Sivensa produced its first steel cast and was reported to have an initial capacity of five tons per year.
- 1948Sivensa is incorporated
Corporate documents for Siderúrgica Venezolana, S.A. were registered in October, establishing a Venezuelan company intended to manufacture reinforcing bar, wire rod, structural steel, and related products.
Products and positioning
Historically positioned as a major Venezuelan private-sector steel producer serving construction and industrial users, with related activities in scrap-metal collection and iron-based briquette and pellet production.
Steel reinforcing barConstruction steel
Reinforcing bar was among Sivensa’s original target products and became a major output of its Antímano plant in Caracas. The product served Venezuela’s construction sector and formed an important part of the company’s early expansion.
Wire rodLong steel products
Wire rod was included in Sivensa’s founding production objective. The reference material does not provide detailed specifications, brands, production volumes, or current availability.
Structural steelConstruction steel
Structural steel was part of the company’s original product scope, supporting industrial and construction applications. Specific profiles and current product lines are not identified in the supplied sources.
Iron briquettes and pelletsIronmaking intermediates
International Briquettes Holding, a principal division associated with Sivensa, sells iron briquettes and iron pellets. These products broadened the group’s activities from finished steel into iron-based inputs for steelmaking.
Flagship businesses
- Steel reinforcing bar
- International Briquettes Holding iron briquettes and pellets
Brand decisions
- 2010Government expropriation of SideturOther
Sidetur was Sivensa’s largest and most important subsidiary and operated steel assets and ferrous-material collection centers in Venezuela.
What changed. The Venezuelan government expropriated Sidetur, transferring the subsidiary’s operations out of Sivensa’s private-sector industrial portfolio.
Aftermath. The action materially reduced Sivensa’s steel operations and changed its position within Venezuela’s steel industry. The supplied sources do not establish later compensation, ownership arrangements, or operating results.
Leadership
| Name | Title | Tenure |
|---|---|---|
| Oscar Machado Zuloaga | Presidentformer | 1959– |
| Miles Meyer Sherover | Founding shareholder; presidentformer | 1956–1959 |
| Angel Cervini | Presidentformer | –1979 |
Recent events
- 2010Sidetur was expropriated
The Venezuelan government expropriated Sidetur, identified as Sivensa’s largest and most important subsidiary. The action affected steel plants and ferrous-material collection operations in Venezuela.
RegulationOther - 2008Sidor was nationalized by the Venezuelan government
The nationalization of Sidor changed the competitive structure of Venezuela’s steel industry. Sivensa was described at the time as the country’s largest private-sector steel producer.
RegulationOther - 1998Asian financial crisis contributed to a major Sivensa crisis
Sivensa underwent a substantial crisis associated mainly with the Asian financial crisis. The downturn reduced the company’s scale and created substantial debt.
Other
Sources
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