The only commercial FEMA P-58 & ATC-138 software Seismic Performance Prediction Platform

Understand Risk.Design for Recovery.

SP3 gives engineers, owners, and risk teams clear, research-backed insight into seismic hazards, building damage, financial loss, downtime, and recovery.

Request a Demo → Explore SP3

FEMA P-58 methodology · Site, building, and portfolio scale

SP3-AI Now available

Risk analysis and resilient design, in a fraction of the time.

About SP3-AI →
100s of design variants compared Your structural systems and your site, explored automatically by SP3-AI. 3 metrics quantified for each Recovery time. Repair cost. Collapse safety. 1 optimized design delivered Narrowed to the optimal solution. Reviewed by our team. Ready for your next project.
1 Tier 1 report in Your ASCE 41 Tier 1 report, uploaded directly into SP3. 3 risk metrics out Collapse probabilities. Repair costs. Recovery times. 0 AI in the analysis step SP3-AI fills the inputs. SP3-RiskModel runs the analysis. The engineer reviews every input.
SP3-RiskModel

One building, modeled component by component — from the ground motion to full recovery.

And more →
SP3-SiteHazards

One address in — every hazard screened and the site's ground-shaking hazard resolved, cited and formatted. No database hunting, no map assembly.

Project address

Hazards screened · tap to view

More on SP3-SiteHazards →

Locating the site…

SP3-Portfolio/Batch

SP3-Batch models every asset on its own terms; SP3-Portfolio ranks them side by side — so you know where to act first.

Every building modeled on its own One upload, a building-specific model for each asset Ranked by what stands to be lost See which buildings to retrofit first, and why Losses across whole shaking event sets Scenario and probabilistic results for the portfolio
Expert Consulting

Fixed-fee support from the authors of the methodology — technical guidance, hands-on modeling collaboration, and formal review and certification.

Build your model with the SP3 team Hands-on tuning, advanced inputs, and recovery settings Have your analysis reviewed From a technical comment log to a formal certification letter Custom fragilities for your components New FEMA P-58 curves from your test data, with a formal HB-Risk report

Backed by research.  Trusted by practice.

ZFA Structural Engineers
Taylor Devices
Degenkolb Engineers
Partner
EDCI
DuraFuse Frames
Mar Structural Design
GMS
KPFF
Ausenco
Holmes
Forell | Elsesser
Reaveley Engineers
SidePlate
Simpson Strong-Tie
SOM
Watson Engineering
Thornton Tomasetti
Marx|Okubo
Wiss, Janney, Elstner Associates
Nabih Youssef Associates
SEFT Consulting Group
How it works

Five steps from address to signed report.

You supply what you know about the building. SP3 fills in the rest, shows its work, and hands back documentation you can issue.

  1. 01

    Input

    Enter building location, age, occupancy and structural systems.

  2. 02

    Automate

    SP3 populates hazard, design and component data for you.

  3. 03

    Review

    Inspect and adjust any auto-populated input.

  4. 04

    Analyze

    Cloud-based FEMA P-58 analysis returns results in minutes.

  5. 05

    Report

    Download comprehensive, ASTM-compliant PDF risk reports.

Inside the platform

Built for real analysis work.

Inputs, analysis options and results in one place — every number traceable back to the model that produced it.

The SP3-RiskModel Primary Building Info screen: structural system set to Steel BRBF CoreBrace with back-up frame in both directions, ASCE 2010 design code, eight stories, and commercial office occupancy.
The Repair Cost by Intensity results screen: a chart of normalized loss ratio against peak ground acceleration with mean SEL, fitted SUL, median and counted 90th percentile curves, above a table of the same metrics at eleven shaking intensities.
The Exposure results screen: cost multipliers, a table of maximum repair potential by component group totalling $45,678,320 or 77.9% of building replacement value, and a pie chart with structural at 43.7% and exterior finishes at 19.9%.
The Recovery Time results screen: the ATC-138 median recovery curves for re-occupancy, functional recovery and full recovery against peak ground acceleration, above a table giving each milestone at eleven intensities.

Real screens from SP3-RiskModel, showing the same sample building as the reports on the product page.

Get started

An introduction to SP3.

Three short videos covering the platform, the workflow, and the FEMA P-58 methodology behind it.

Brief introduction to SP3 4 min
Introduction to SP3 7 min
Brief introduction to FEMA P-58 15 min
The SP3 ecosystem

Analysis modes for one engineering platform.

Each SP3 product is a different lens on the same rigorous, research-backed core.

SP3-RiskModel Building-specific damage, loss, downtime and functional recovery. Explore SP3-SiteHazards Fast, address-based site hazard reports — cited and client-ready. Explore SP3-Portfolio Compare and manage seismic risk across buildings and assets. Explore SP3-Batch High-efficiency processing for large building inventories. Explore Consulting & Support Direct access to SP3 experts for implementation and analysis. Explore

One engine underneath — results stay consistent and comparable across every product. See the full product overview →

Client project spotlights

Resilient design, built and documented.

SP3 supports the project teams behind some of the West Coast's most closely watched resilience work — new construction, retrofits, and portfolio-scale assessment. Grab the cards to browse.

How a higher-fidelity seismic assessment saved UCSF $1 billion Advanced Seismic Evaluation (Tier 3+ and FEMA P-695) UCSF Ambulatory Care Center A higher-fidelity seismic assessment showed UCSF's Ambulatory Care Center did not need the $1B retrofit its original Tier 3 rating implied. View project
Treasury Resilience Building Resilient Design Treasury Resilience Building Oregon's first USRC Platinum building — seismically isolated by KPFF with SP3, with expected losses reduced to 1% of construction cost. View project
555 Capitol Mall Retrofit 555 Capitol Mall Miyamoto used SP3 to design a viscous-damper retrofit for two 1970s concrete towers, cutting expected losses to 12% at design-level shaking. View project
Casa Adelante, 1296 Shotwell Resilient Design Casa Adelante, 1296 Shotwell Mar Structural Design used SP3 to reach a Gold USRC score for this 9-story affordable-housing tower — for just 0.24% of construction cost. View project
Long Beach Civic Center Resilient Design Long Beach Civic Center Designed with SP3 using the FEMA P-58 and REDi methods for low repair cost and virtually no downtime — resilient design, proven cost-effective. View project
1215 O Street, California State Office in Sacramento Resilient Design 1215 O Street, California State Office in Sacramento KPFF designed this 11-story state building to stay functional after an earthquake, supporting recovery for Sacramento and the State of California. View project

See all client spotlights

Get started

Make Seismic Risk Clearer.

See how SP3 can support your next building, campus, or portfolio-level risk assessment.

Request a Demo → Contact the SP3 Team
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