List of companies that occupied the WTC - World Trade Center, Twin Towers https://tbtf.com/unblinking/arc/2001-09a.htm
==================
==================
World Trade Center (1973–2001)
==================
Companies in the Twin Towers: Before and after
Here are the major businesses in the World Trade Center towers during the attacks on Sept. 11, 2001. Almost a decade later Fortune tracked where the companies or divisions relocated-and how many employees now work at those offices.
Graphic by Nicolas Rapp===============
List of tenants in One World Trade Center
| One World Trade Center | |
|---|---|
 The Twin Towers of the World Trade Center, pictured at night in July 2001. One World Trade Center is on the left, with its antenna clearly visible. | |
 | |
| Alternative names |
|
| General information | |
| Status | Destroyed |
| Location | West Street, New York, New York, United States |
| Construction started | August 6, 1968 |
| Topped-out | December 23, 1970 |
| Completed | 1972 |
| Opened | December 15, 1970 |
| Inaugurated | April 4, 1973 |
| Destroyed | September 11, 2001, 10:28 AM ET |
| Owner | Port Authority of New York and New Jersey |
| Management | Silverstein Properties |
| Height | |
| Antenna spire | 1,728 ft (527 m) |
| Roof | 1,368 ft (417 m) |
| Technical details | |
| Floor count | 110 |
| Floor area | 4,300,000 sq ft (400,000 m2) |
| Lifts/elevators | 99 |
| Design and construction | |
| Architect | |
| Structural engineer | Leslie E. Robertson (Worthington, Skilling, Helle, and Jackson) |
| References | |
| [1][2] | |
The original One World Trade Center (also known as the North Tower, Tower 1, Building One, or 1 WTC) was one of the Twin Towers of the original World Trade Center in New York City. It was completed in 1972, stood at a height of 417 metres (1,368 ft), and was the tallest building in the world until 1973, when surpassed by the Sears Tower in Chicago.
It was distinguishable from its twin, the original Two World Trade Center, also known as the South Tower, by the 110.3-metre (362 ft) telecommunications antenna on its roof. Including the antenna, the building stood at a total height of 1,728 feet (527 m). Other things that made the North Tower distinguishable from its twin was that there was a canopy connected to the North Tower's west facade on street level and there was two small pedestrian walkways that extended from the west and south promenades of Three and Six World Trade Center to the North Tower's north and south facades on plaza level, while the South Tower lacked any of those. The building's address was One World Trade Center, and the WTC complex had its own ZIP code (10048) due to its large size.
