SKYDB Building database

Tall buildings worldwide, with heights, construction status and the companies involved.

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Tall buildings, tracked.

SKYDB is collecting verifiable information about buildings.

Panorama of Chicago File 251-493-889
company #412267911

American Hydrotech, Inc.

active foundation company founded 1977

Activity Rankings

Object dataJoin to edit

Status active
Rolefoundation company
Founded1977
CityChicago, IL
CountryUnited States
Source: SKYDB | As of: 2026-10-28

Location

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Statistics

Buildings by decade

Click any bar to drill into that completion decade.

0 0% 2020s 0 0% 2010s 2 20% 2000s 1 10% 1990s 4 40% 1980s 1 10% 1970s 0 0% 1960s 1 10% 1950s 0 0% 1940s 0 0% 1930s 0 0% 1920s 0 0% 1910s 1 10% 1900s

By status

Completed: 10 (100%)
  • Completed 10

By primary use

office: 6 (55%) leisure: 2 (18%) lodging: 1 (9%) health: 1 (9%) symbolic: 1 (9%)
  • office 6
  • leisure 2
  • lodging 1
  • health 1
  • symbolic 1

By floor count

1-9 floors: 1 (11%) 10-19 floors: 4 (44%) 20-39 floors: 3 (33%) 60+ floors: 1 (11%)
  • 1-9 floors 1
  • 10-19 floors 4
  • 20-39 floors 3
  • 60+ floors 1

By height

Under 50 m: 1 (14%) 50-99 m: 2 (29%) 100-199 m: 3 (43%) 300 m+: 1 (14%)
  • Under 50 m 1
  • 50-99 m 2
  • 100-199 m 3
  • 300 m+ 1

Source: SKYDB | As of: 2026-10-28

American Hydrotech, Inc. Buildings View all

  1. Willis Tower 1
    442 m 108 fl1974
  2. NBC Tower 2
    191 m 37 fl1989