Matrix Seismic Corp
Engineering firm · San Francisco permit activity
Engineering firm active in San Francisco construction, tracked from public building-permit filings.
#565
by SF filing activity
among SF architects & engineers, last 90 days
7
projects tracked
Feb 2025 to Jul 2026
1/16
active weeks
weeks with a filing (last 16)
1 of the 7 Matrix Seismic projects filed new permits in the last 30 days.
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$60K Chinatown renovation
Filed 3 months ago · Matrix Seismic: engineer
Seismic alteration and removal of existing mezzanine the building is vacant, accessiblity under ab-017
GC named · Engineer identified
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$100K Noe Valley renovation
Filed 6 months ago · Matrix Seismic: engineer
Rear addition to an existing 2 story, 2 family dweling. interior renovations including new kitchen and bathrooms
No GC named · Architect identified
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$150K Potrero Hill renovation
Filed 11 months ago · Matrix Seismic: engineer
Install new family room 1st fl. install new bathroom 1st fl. new deck 2nd floor. new spral stair to new roof deck. 2nd fl kitchen and bath…
GC named · 1 other firm identified
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4 more
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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.
7 project records for Matrix Seismic: addresses, values, project teams
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Middle 50% of declared values: $30K–$100K (median $60K)
Most recent filing: Nob Hill · Jul 14, 2026
1 active · 1 newly observed last 90 days
Filing activity · last 16 weeks
APR
MAY
JUN
JUL
1
active projects (last 90d)
1
newly observed (last 90d)
Jul 2026
peak month
Project mix · by use
Commercial33%
Residential67%
Geography · by neighborhood
Castro/Upper Market33%
Chinatown17%
Mission17%
Nob Hill17%
Noe Valley16%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | A. Urrutia | Architecture | 1 | |
| 2 | Edw. Lee Hammack, Architect | Architecture | 1 | |
| 1 | U S Prime Contractor Inc | General contractor | 2 | |
| 2 | Pineda Construction Inc | General contractor | 1 | |
| 3 | Filshie Construction | General contractor | 1 |
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 Matrix Seismic Corp filed?▾
PermitPipeline tracks 7 San Francisco building-permit projects for Matrix Seismic Corp (Feb 2025 to Jul 2026). 1 had filing activity in the last 90 days.
Does Matrix Seismic Corp work on commercial or residential projects?▾
Across its tracked San Francisco filings, 33% of Matrix Seismic Corp's projects are commercial and 67% are residential (multifamily, small residential, or single-family). Based on permit records, not self-reported.
Where in San Francisco does Matrix Seismic Corp work?▾
29% of Matrix Seismic Corp's tracked San Francisco projects are in Castro/Upper Market.
What is a typical Matrix Seismic Corp project worth?▾
Across the 9 tracked projects with a declared value, Matrix Seismic Corp averages $51K per project (declared value on the permit filing, not contract value).
Which firms does Matrix Seismic Corp work with most often?▾
Matrix Seismic Corp most frequently appears on the same San Francisco permit filings as U S Prime Contractor Inc, Pineda Construction Inc, Filshie Construction. Appearing together indicates association on shared filings, not a proven working relationship.
Is Matrix Seismic Corp an engineering firm?▾
Matrix Seismic Corp is listed as an engineering firm 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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