SKYDB Building database

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

Rankings of tall buildings

Tall Building Markets

Tall buildings, tracked.

SKYDB is collecting verifiable information about buildings.

Panorama of Chicago File 251-493-889
company #338475364

STS

active geotechnical engineering founded 19480000

Activity Rankings

Object dataJoin to edit

Status active
Rolegeotechnical engineering
Founded19480000
CityChicago, IL
CountryUnited States
Source: SKYDB | As of: 2026-10-16

Location

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Statistics

Buildings by decade

Click any bar to drill into that completion decade.

0 0% 2020s 3 4.5% 2010s 43 65.2% 2000s 6 9.1% 1990s 5 7.6% 1980s 7 10.6% 1970s 1 1.5% 1960s 0 0% 1950s 0 0% 1940s 0 0% 1930s 0 0% 1920s 0 0% 1910s 1 1.5% 1900s 4 not counted No Year

By status

Vision: 4 (6%) Completed: 66 (94%)
  • Vision 4
  • Completed 66

By primary use

residential: 39 (51%) office: 29 (38%) lodging: 5 (6%) retail: 2 (3%) Other (2): 2 (3%)
  • residential 39
  • office 29
  • lodging 5
  • retail 2
  • Other (2) 2

By floor count

1-9 floors: 1 (1%) 10-19 floors: 11 (16%) 20-39 floors: 29 (41%) 40-59 floors: 13 (19%) 60+ floors: 16 (23%)
  • 1-9 floors 1
  • 10-19 floors 11
  • 20-39 floors 29
  • 40-59 floors 13
  • 60+ floors 16

By height

Under 50 m: 2 (3%) 50-99 m: 22 (32%) 100-199 m: 25 (36%) 200-299 m: 8 (12%) 300 m+: 12 (17%)
  • Under 50 m 2
  • 50-99 m 22
  • 100-199 m 25
  • 200-299 m 8
  • 300 m+ 12

Source: SKYDB | As of: 2026-10-16

STS Buildings View all

  1. Chicago Spire 1
  2. Taipei 101 4
    509 m 101 fl2004
  3. Petronas Tower 1 5
    452 m 88 fl1998
  4. Petronas Tower 2 6
    452 m 88 fl1998
  5. Willis Tower 7
    442 m 108 fl1974
  6. Aon Center 9
    346 m 83 fl1973
  7. 875 North Michigan 10
    344 m 100 fl1969
  8. Waterview Tower 11
  9. Two Prudential Plaza 12