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Trammo, Inc., (formerly known as Transammonia, Inc.)
Privately held company
Founded 1965 (1965)
Founder Ronald Stanton
Headquarters New York City, United States
Key people
Henk van Dalfsen, CEO (as of 2012) [1]
Products Fertilizers, ammonia, raw materials, petrochemicals,[2] propane, natural gas, butane, ethane [3]
Services Chemical trading, import and export, transportation and distribution, marketing and merchandising
Number of employees
450 [1]

Trammo, Inc., (formerly known as Transammonia, Inc., also known as Trammo Group), engages in the international commerce, trade, transportation, distribution, and marketing of fertilizer, chemicals,[4] methanol, crude oil, liquefied petroleum gas, and petrochemicals.[2] The company was established by Ronald Stanton in 1965,[5] and is currently headquartered in New York City.[1][6] The company operates using five subsidiaries. The company has offices in the continents of Europe, Asia, North America, South America, and Africa.[7] In 2011, based upon annual sales, the company was ranked by Forbes magazine as 34th in a list of the top 500 private U.S. companies.[8] Transammonia is the world's largest private company in fertilizer trading and merchandising.[8][9]


The Company changed its name from Transammonia, Inc. to Trammo, Inc. on October 29, 2013. The Trammo trademark has long been associated with the company and had been the name of several subsidiaries. The name change reflected the current broad range of products and markets in which the company trades, in addition to ammonia. The company began operations in the transportation and manufacture of ammonia, raw materials and fertilizer products.[2]

In the fiscal year that ended in May 1, 1990, Transammonia posted sales of USD $1.1 billion.[10] In 2006, the company ventured into natural gas gathering in the United States.[2] In 2007, the company was ranked by Forbes magazine as among the top 50 private companies in the United States.[7] In 2012, the company was ranked as #24 by Forbes magazine in its list of the largest private companies in the United States.[3]


Transammonia, Inc. operates five subsidiaries: Transammonia, Trammo gas, Trammo petroleum, Trammochem, Sea-3, and Trammo Gas International, Inc.[2] Trammochem is based in Darien, Connecticut[11] and is involved in the manufacture and international commerce of various petrochemicals.[2] In 2000, Trammochem began engagement in the trading of olefins.[11] Trammo petroleum, founded in 2002, is based in Houston, Texas[12] and engages in sales of products, such as diesel fuel, gasoline, natural gas, and jet fuel, on the West Coast of the U.S.[2] Trammo Gas is based in Houston, Texas and is involved in the commerce of gases, such as liquefied petroleum gas, propane, and natural gas.[2] Sea-3 operates in northeastern U.S. states and in areas of Florida in the commerce of liquefied propane, and is also involved in gas marketing in other areas of the U.S.[2]


In 2010, Transammonia ended the dealings of its Swiss subsidiary, Trammo Trading, with Iranian companies,[13][14] in part as a response to an investigation by [CNBC] regarding the company's involvement with entities within Iran.[14] The United States has prohibitions against commerce in Iran, in part to persuade that country to disengage in nuclear development.[14] Transammonia maintained that its foreign subsidiary's Iranian dealings were allowed under U.S. law, but decided to end them anyway. The company stated, "the small amount of business done there does not justify the reputational risk currently associated with doing business with entities located in Iran, due to the growing international concern over the policies of the current regime there."[13]


  1. ^ a b c "Transammonia". Forbes. Retrieved 1 August 2013. 
  2. ^ a b c d e f g h i Plunkett's Energy Industry Almanac 2008: Energy Industry Market Research, Statistics, Trends and Leading Companies. 
  3. ^ a b "Transammonia, Inc. Company Profile". Hoovers. Retrieved 1 August 2013. 
  4. ^ Network World. 1990-09-03. 
  5. ^ We Were Europeans: A Personal History of a Turbulent Century - Werner M. Loval. 
  6. ^ "Corporate Structure". Retrieved 1 August 2013. 
  7. ^ a b Plunkett's Energy Industry Almanac 2007 (E-Book): Energy Industry Market Research, Statistics, Trends and Leading Companies. 
  8. ^ a b "Facts & Figures". Retrieved 1 August 2013. 
  9. ^ Haughney, Christine (November 6, 2003). "First move for Transammonia offices". Crain's New York Business. Retrieved 1 August 2013. 
  10. ^ Crockett, Barton (September 3, 1990). User hands fax, Telex traffic to BT Tymnet. Network World. pp. 27, 30. 
  11. ^ a b Sinclair, Neil (July 18, 2000). "Trammochem expands into olefins trading". Retrieved 23 August 2013. 
  12. ^ "Company Overview of Trammo Petroleum, Inc". Bloomberg Businessweek. Retrieved 23 August 2013. 
  13. ^ a b Greenwood, Al (December 13, 2010). "Transammonia's Swiss unit to wind down business with Iran". ICIS. Retrieved 1 August 2013. 
  14. ^ a b c Burnett, Erin (December 14, 2010). "Chemical Giant Ends Iran Deals After CNBC Report". CNBC. Retrieved 1 August 2013. 

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