company #392976313

Siebold, Sydow & Elfanbaum

active structural engineering

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Activity Rankings

Source: SKYDB | As of: 2026-10-19

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0 0% 2020s 0 0% 2010s 0 0% 2000s 1 50% 1990s 0 0% 1980s 0 0% 1970s 1 50% 1960s 0 0% 1950s 0 0% 1940s 0 0% 1930s 0 0% 1920s 0 0% 1910s 0 0% 1900s

Completed 2

residential 1

government 1

1-9 floors 1

10-19 floors 1

50-99 m 1

Source: SKYDB | As of: 2026-10-19