Day & Zimmermann

Last updated
Day & Zimmerman
Company type Private
Industry Construction, staffing, defense
Headquarters
Philadelphia, Pennsylvania
,
United States
Area served
Worldwide
Key people
Harold L. Yoh III (Chairman & CEO)
Revenue US$2.7 billion (2023)
OwnersHal, Mike and Bill Yoh [1]
Number of employees
43,000 [2]
Subsidiaries Yoh Services
Website dayzim.com

Day & Zimmermann is a privately held company in the fields of construction, engineering, staffing and ammunition manufacture, operating out of 150 locations worldwide. Its corporate office is in Philadelphia, Pennsylvania.

Contents

Day & Zimmermann has an annual revenue of $2.5 billion, and is ranked by Forbes as one of the largest privately held companies in the United States. [3] One of America's leading producers of ammunition, the company operates several government-owned facilities. In the 2011 financial year, it worked on 351 US Army contracts worth 151.8 million dollars. [4]

History

Early years

The company was founded in 1901 by Charles Day and Kern Dodge, son of James Mapes Dodge, as Dodge & Day, [5] specializing in engineering, shop equipment and management. [6] Later, the scope of the organization was enlarged to include a great deal of engineering and construction work in both the industrial and public-service fields. [7]

In 1907 another former classmate John Zimmermann joined the firm as partner, and they renamed the firm Dodge, Day & Zimmermann. After Kern Dodge withdrew as partner in 1911 the firm became Day & Zimmermann, incorporated in 1916, [8]

In its early years the company came into prominence with the design of the construction of the Gatun Lock System, one of the Panama Canal locks in 1907. The construction of the Gatun Lock began with the first concrete laid at Gatun, on August 24, 1909, by Day & Zimmermann.[ citation needed ] In 1914, the company was contracted by the Hershey chocolate company to produce the foil wrapping machines for Hershey's Kisses. [9]

Merger with Yoh Services and later years

In 1961, Day & Zimmermann and Yoh Company merged, with Harold L. Yoh becoming president of Day & Zimmerman. In the early 1970s it assisted in the construction of Veteran's Stadium in Philadelphia.[ citation needed ]

In 1976, Spike Yoh bought the company from his father and was the CEO for twenty-two years. He graduated from Duke University and one of Duke's facilities is named Duke's Yoh Football Center. In 1998, his son, Hal Yoh, became the company's leader. In that year Day & Zimmermann was the recipient of the National Family Business of the Year award. [10]

Involvement in Israel-Palestine conflict

Day & Zimmermann is responsible for manufacturing much of the artillery munitions used by Israel in its ongoing invasion of Gaza. In particular, it manufactures 155mm rounds, fired by M109 howitzer guns, and 120mm M830A1 High Explosive Anti-Tank (HEAT) rounds, fired by Israel's Merkava battle tanks. [11] [12] The American Friends Service Committee says that Merkava tanks fired M830A1 rounds in a November attack on a UN school in Gaza, and in the attack that killed Hind Rajab, and that serial numbers on shells recovered at the scene suggest that the shells were made by Day & Zimmermann subsidiary Mason & Hanger. [13]

Selected publications

Related Research Articles

<span class="mw-page-title-main">Merkava</span> Israeli main battle tank

The Merkava is a series of main battle tanks (MBT) used by the Israel Defense Forces (IDF) and the backbone of the IDF's Armored Corps. Current iterations of this tank are considered broadly equivalent to the capabilities of the M1 Abrams, Leopard 2 and the Challenger 2. The current iteration of this vehicle also shares the same MTU EuroPowerPack powerplant as a number of other MBT platforms.

<span class="mw-page-title-main">Bulldozer</span> Mobile machine which uses a frontal blade to push large volumes of material

A bulldozer or dozer is a large, motorized machine equipped with a metal blade to the front for pushing material: soil, sand, snow, rubble, or rock during construction work. It travels most commonly on continuous tracks, though specialized models riding on large off-road tires are also produced. Its most popular accessory is a ripper, a large hook-like device mounted singly or in multiples in the rear to loosen dense materials.

<span class="mw-page-title-main">IDF Caterpillar D9</span> Armored bulldozer used by the Israel Defense Forces

The IDF Caterpillar D9 — nicknamed Doobi — is a Caterpillar D9 armored bulldozer used by the Israel Defense Forces (IDF). It is supplied by Caterpillar Inc. and modified by the Israel Defense Forces, Israeli Military Industries and Israel Aerospace Industries to increase the survivability of the bulldozer in hostile environments and enable it to withstand attack.

<span class="mw-page-title-main">Israeli Combat Engineering Corps</span> Military unit

The Israeli Combat Engineering Corps is the combat engineering forces of the Israel Defense Forces.

<span class="mw-page-title-main">Jolly Rancher</span> American brand of confectionery

Jolly Rancher is an American brand of sweet hard candy, gummies, jelly beans, lollipops, sour bites, and a line of soda put out by Elizabeth Beverage Company in 2004. Originally created in Colorado in the 1950s, the Jolly Rancher brand has been owned by The Hershey Company since 1996.

<span class="mw-page-title-main">401st Brigade (Israel)</span> Unit of the Israel Defense Forces

The 401st "Iron Tracks" Brigade is an Armored Brigade in the 162nd Division of the Israeli Defence Forces (IDF).

<span class="mw-page-title-main">Trophy (countermeasure)</span> Israeli military active protection system for vehicles

Trophy is a military armored vehicle active protection system (APS) designed by Rafael Advanced Defense Systems.

<span class="mw-page-title-main">Rheinmetall Rh-120</span> Smoothbore tank gun

The Rheinmetall Rh-120 is a 120 mm smoothbore tank gun designed and produced in former West Germany by the Rheinmetall Waffe Munition GmbH company, it was developed in response to Soviet advances in armour technology and development of new armoured threats. Production began in 1974, with the first version of the gun, known as the L/44 as it was 44 calibres long, used on the German Leopard 2 tank and soon produced under license for the American M1A1 Abrams and other tanks. The 120-millimetre (4.7 in) gun has a length of 5.28 metres (17.3 ft), and the gun system weighs approximately 3,317 kilograms (7,313 lb).

EDO Corporation was an American company which was acquired by ITT Corporation in 2007. EDO designed and manufactured products for defense, intelligence, and commercial markets, and provided related engineering and professional services. It employed 4,000 people worldwide and had revenues of $715 million in 2006. EDO's assets went to ITT Defense Electronics and Services. As of May 2015, these assets were now part of Harris Corporation, and since June 2019, L3Harris Technologies.

<span class="mw-page-title-main">Magen, Israel</span> Kibbutz in southern Israel

Magen is a kibbutz in southern Israel. Located in the north-western Negev desert and covering 8,500 dunams, it falls under the jurisdiction of Eshkol Regional Council. In 2022, it had a population of 540.

<span class="mw-page-title-main">Yoh Services</span> American talent and outsourcing company

Yoh Services LLC is an American talent and outsourcing company that is headquartered in Philadelphia, Pennsylvania. Yoh's primary services include temporary placement, direct hire, managed staffing services and outsourced solutions.

The Iowa Army Ammunition Plant (IAAAP), located in Des Moines County in southeastern Iowa, near the city of Burlington, produces and delivers component assembly, and medium- and large-caliber ammunition items for the United States Department of Defense using modern production methods in support of worldwide operations. The facility is part of the US Army Joint Munitions Command.

<span class="mw-page-title-main">Namer</span> Israeli heavy armoured personnel carrier

Namer, means "leopard" and also a syllabic abbreviation of "Nagmash" (APC) and "Merkava", is an Israeli armoured personnel carrier based on a Merkava Mark IV tank chassis. Namer was developed by and is being assembled by the Israeli Ordnance Corps. It has entered service in limited numbers with the Israel Defense Forces since the end of 2008. Due to budgetary constraints, the introduction of the Namer into the IDF has been slow, leaving the ground forces dependent on the M113 until 2027.

<span class="mw-page-title-main">Tanks of the Israel Defense Forces</span>

This article deals with the history and development of tanks of the Israeli Army, from their first use after World War II in the establishment of the State of Israel after the end of the British Mandate, and into the Cold War and what today is considered the modern era.

<span class="mw-page-title-main">Tanks of the post–Cold War era</span>

The post–Cold War era is the period in world history from the collapse of the Soviet Union on December 27, 1991 to the present. During the Cold War, the Soviet domination of the Warsaw Pact led to effective standardization on a few tank designs. In comparison, France, Germany, the United States, and the United Kingdom had previously developed their own tank designs, but now tried to standardize their designs, while the smaller nations of NATO purchased or adapted these designs.

<span class="mw-page-title-main">James Mapes Dodge</span> American mechanical engineer, inventor and industrialist

James Mapes Dodge was an American mechanical engineer, inventor, industrialist and president of the American Society of Mechanical Engineers in the year 1903–1904. He is known as president of the Link-Belt Company, and as pioneer of applying scientific management methods.

<span class="mw-page-title-main">Charles Day (engineer)</span> American engineer (1879–1931)

Charles Day was an American electrical, construction and consulting engineer, and co-founder of Day & Zimmermann. He is known as a specialist in public utility management and operation, and for his seminal contributions to flow charts and the routing diagram.

<span class="mw-page-title-main">Conrad N. Lauer</span> American engineer (1869–1943)

Conrad Newton Lauer was an American mechanical engineer, general manager at Day & Zimmerman, Inc., chairman of the Philadelphia Gas Works Co., and 51st president of the American Society of Mechanical Engineers in 1932–33.

<span class="mw-page-title-main">120×570mm NATO</span> Calibre of tank ammunition

120×570mm NATO tank ammunition, also known as 120×570mmR, is a common, NATO-standard, tank gun semi-combustible cartridge used by 120mm smoothbore guns, superseding the earlier 105×617mmR cartridge used in NATO-standard rifled tank guns.

<span class="mw-page-title-main">Killing of Hind Rajab</span> 2024 killing of a Palestinian child in the Gaza Strip

Hind Rajab was a six-year-old Palestinian girl from the Tel al-Hawa neighbourhood in Gaza City who was killed by the Israel Defense Forces (IDF), after being the sole survivor of Israeli tank fire on the vehicle in which she had fled with six relatives.

References

  1. Yoh family, profile. Accessed 16-05-2017
  2. "Company Profile".
  3. Day & Zimmermann, data Fiscal Year End, Dec 31, 2014. Accessed 16-05-2017
  4. Federal Procurement Data System - Next Generation. "Top 100 Contractors Report for FY2011" . Retrieved 28 April 2012.
  5. Paula Kepos, Thomas Derdak (1994), International Directory of Company Histories. Vol 9, p. 162
  6. Taylor Society (1930), Bulletin of the Taylor Society, Vol. 15-16, p. 90
  7. Engineering magazine, "Charles Day," Engineering magazine. v.39 1910 Apr-Sep. p. 7; Section: The publisher's announcement, Authors and papers for september 1910.
  8. St James Press, Tina Grant (2000), International Directory of Company Histories. Vol. 31, p. 153
  9. "History". Day & Zimmerman. Retrieved November 2, 2022.
  10. Bob Brooke, The Business Journal (1 Jun 1998) Day & Zimmermann's enduring dynasty
  11. "Israel – M830A1 120mm Tank Cartridges | Defense Security Cooperation Agency". www.dsca.mil. Retrieved 2024-03-17.
  12. "Indefinite Delivery / Indefinite Quantity (IDIQ) Contract". www.usaspending.gov. Retrieved 2024-03-17.
  13. MADEO (2023-12-01). "Companies Profiting 2023-2024 Attacks on Gaza". American Friends Service Committee. Retrieved 2024-03-17.