Siemans Building Technology
General contractor · San Francisco permit activity
siemens.com25821 Industrial Blvd Suite 300, Hayward, CA 94545
General contractor active in San Francisco construction, tracked from public building-permit filings.
#51
by SF filing activity
among SF architects & engineers, last 90 days
132
projects tracked
Jan 2025 to Jul 2026
11/16
active weeks
weeks with a filing (last 16)
1 of the 132 Siemans Building Technology projects filed new permits in the last 30 days.
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$1.0M Mission Bay renovation
Filed 1 month ago · 13 filings · Siemans Building Technology: GC
Assembly permit associated with &
GC named · 3 architects identified · 2 engineers identified
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$41.7M Mission Bay renovation
Filed 7 months ago · 7 filings · Siemans Building Technology: GC
L1 - l4. electrical only revision to approved
GC named · Architect identified · 3 engineers identified
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$17.1M Mission Bay renovation
Filed 9 months ago · 9 filings · Siemans Building Technology: GC
Revision to: removal of fsd-5-25 & fsd 5-26 from schedule & plans, mechanical schedule only scope
GC named · Architect identified · 5 engineers identified
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129 more
Siemans Building Technology projects with project intelligence
Scopes, values, teams and filing history for every one
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Neighborhood, filing date, scope and declared value are shown here. Exact addresses,
owner and contact details and full filing histories are part of the paid product.
132 project records for Siemans Building Technology: addresses, values, project teams
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Middle 50% of declared values: $10K–$571K (median $67K)
Most recent filing: Chinatown · Jul 21, 2026
8 active · 1 newly observed last 90 days
Filing activity · last 16 weeks
APR
MAY
JUN
JUL
8
active projects (last 90d)
1
newly observed (last 90d)
Jun 2026
peak month
Project mix · by use
Commercial98%
Residential2%
Geography · by neighborhood
Financial District/South Beach57%
Mission Bay21%
Chinatown12%
Bayview Hunters Point5%
Potrero Hill5%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Huntsman Ag | Architecture | 10 | |
| 2 | California Electric Design | Engineering | 9 | |
| 3 | Gensler | Architecture | 5 | |
| 4 | Amit Wadhwa & Associates | Architecture | 5 | |
| 5 | Fme Architecture | Architecture | 5 | |
| 1 | R L H Fire Protection Inc | General contractor | 16 | |
| 2 | Principal Builders Inc. | General contractor | 15 | |
| 3 | Golden Gate Fire Protection Inc | General contractor | 10 | |
| 4 | Gci, Inc | General contractor | 9 | |
| 5 | M C S Construction Services | General contractor | 8 |
Firms that appear on the same San Francisco permit filings. Association on shared filings, not a proven working relationship.
Frequently asked questions
How many SF projects has Siemans Building Technology filed?▾
PermitPipeline tracks 132 San Francisco building-permit projects for Siemans Building Technology (Jan 2025 to Jul 2026). 8 had filing activity in the last 90 days.
Does Siemans Building Technology work on commercial or residential projects?▾
Across its tracked San Francisco filings, 98% of Siemans Building Technology's projects are commercial and 2% are residential (multifamily, small residential, or single-family). Based on permit records, not self-reported.
Where in San Francisco does Siemans Building Technology work?▾
49% of Siemans Building Technology's tracked San Francisco projects are in Financial District/South Beach.
What is a typical Siemans Building Technology project worth?▾
Across the 359 tracked projects with a declared value, Siemans Building Technology averages $380K per project (declared value on the permit filing, not contract value).
Which firms does Siemans Building Technology work with most often?▾
Siemans Building Technology most frequently appears on the same San Francisco permit filings as R L H Fire Protection Inc, Principal Builders Inc., Huntsman Ag. Appearing together indicates association on shared filings, not a proven working relationship.
Is Siemans Building Technology a general contractor?▾
Siemans Building Technology is listed as a general contractor on its San Francisco permit filings. Roles on this profile are derived from the role each firm holds on public DOB filings.
Public aggregate — full project records are part of the paid leads product. Updated daily from SF DBI filings.
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