BREAKING: PASE ENGINEERS THE BONES OF SILICON VALLEY SINCE 1990 ENR “BEST OF THE BEST” FOR FACEBOOK’S PRINEVILLE DATA CENTER 250+ YEARS OF COMBINED STRUCTURAL & SEISMIC EXPERIENCE OFFICES FROM SAN JOSE TO ZAGREB, CROATIA FOUNDER DON PEOPLES HANDED THE KEYS TO FIVE ENGINEERS IN 2021 CLIENTS INCLUDE META · VANTAGE · CORESITE BREAKING: PASE ENGINEERS THE BONES OF SILICON VALLEY SINCE 1990 ENR “BEST OF THE BEST” FOR FACEBOOK’S PRINEVILLE DATA CENTER 250+ YEARS OF COMBINED STRUCTURAL & SEISMIC EXPERIENCE OFFICES FROM SAN JOSE TO ZAGREB, CROATIA FOUNDER DON PEOPLES HANDED THE KEYS TO FIVE ENGINEERS IN 2021 CLIENTS INCLUDE META · VANTAGE · CORESITE
Structural & Seismic Engineering · San Jose, CA

PASE.

Peoples Associates Structural Engineers - the people who design the parts of a building you never see and never want to think about.

Founded 1990 ~69 Engineers Data Centers Seismic Design
PASE-engineered Facebook (Meta) data center in Prineville, Oregon
PRINEVILLE, OR - The first Facebook data center. PASE drew its skeleton; ENR called the result “Best of the Best.”
The Profile

The Firm That Plans for the Worst Day

Somewhere in a server hall the size of a small town, a wall of machines hums through the night, holding photos and messages and the small private business of millions of strangers. The building keeps perfectly still. That stillness is not an accident. It is a decision - made years earlier, in steel and concrete, by a structural engineer in San Jose who asked the unfashionable question: what happens when the ground moves?

PASE - Peoples Associates Structural Engineers - has been asking that question since 1990. It is not a household name, and the firm seems comfortable with that. Structural engineers are the stagehands of the built world. When they do their job well, nobody notices. When they do it badly, everybody does. PASE has spent three and a half decades on the right side of that line, designing the bones of data centers, apartment towers, hospitals and bridges across California and beyond.

The work is invisible by design. You walk into a Meta data center, a Crescent Village apartment, a Walgreens distribution hub, and you see the architecture - the glass, the light, the lobby. You do not see the diagonal brace tucked behind a wall, the foundation calibrated for liquefiable soil, the connection detail that decides whether a roof stays up during a magnitude-seven reminder that California sits on a fault line. PASE sees all of it. That is the whole job.

CAPTION - A structural drawing is a promise written in lines: this will hold. PASE has been keeping that promise since the year the Hubble telescope launched.

Founded in June 1990 by Don Peoples, the firm began with a deceptively plain ambition: high quality, innovative, cost-effective design. Plenty of firms say that. Fewer build a culture stubborn enough to mean it. What separates PASE is less a signature look - structural engineers do not have signature looks - than a signature habit. The firm talks constantly about collaborating early, before the expensive mistakes get poured into concrete.

“Close collaboration during the earliest stages of the project will promote the identification of design liabilities and solutions.” - PASE, on how it works

It is a quiet sentence, and a radical one. Most engineering gets brought in late, after the architect has dreamed and the budget has hardened, asked to make someone else’s vision stand up. PASE prefers to be in the room first - to catch the liability while it is still a line on a screen and not a crack in a beam. That instinct, more than any single building, is the firm’s real product.

It helps that PASE works in a part of the world that does not let engineers get lazy. California is beautiful, expensive, and sitting on a network of faults that will, eventually, move. Building here means designing for an event that may not arrive for fifty years and may arrive next Tuesday. Seismic design is not a feature you add; it is the constraint you build inside. The firm has spent decades fluent in that constraint - evaluating which old structures will survive a shake and which need strengthening, deciding how a four-story data hall transfers its weight into ground that might briefly behave like liquid.

The economics are unglamorous and unforgiving. A structural engineer’s fee is a sliver of a project’s cost, yet the decisions made in that sliver govern whether the other ninety-odd percent survives. Over-design and you waste a client’s money in needless steel. Under-design and you gamble with lives. PASE’s whole business is living in that narrow band where the structure is safe, efficient, and buildable - and doing it across markets as different as a cryogenic tank and a luxury apartment.

1990
Founded in San Jose
250+
Years combined experience
~69
Engineers & staff
5
Offices, CA to Croatia
What They Build

Seven Ways to Keep a Building Honest

PASE works across markets most people never connect - the cloud, the apartment, the lab, the cryogenic tank - because all of them share one need: a structure that does not flinch.

Data Centers

Mission-critical structural and seismic design for hyperscale and colocation campuses - Meta, Vantage, CoreSite. The buildings that hold the internet upright.

New Buildings

Full structural engineering for commercial, multifamily, mixed-use and institutional construction, from foundation to roof.

Seismic Retrofit

Evaluating and strengthening existing structures so they survive the day the fault remembers it exists.

Anchorage & Bracing

Designing how non-structural components and equipment stay put when everything around them wants to move.

Non-Building Structures

Towers, pipe racks, retaining walls, utility and cryogenic infrastructure - the structures that are not exactly buildings.

Renovation & Repair

Structural design for renovations, additions and adaptive reuse - giving old bones a second life.

Culture

The PASE Way

Ask the firm what holds it together and you get a list, not a slogan. “The PASE Way” runs to ten principles - expectations, proactiveness, growth, communication, camaraderie, reliability, assessment, collaboration, innovation, passion. It reads like the kind of poster a company hangs and then ignores. The difference at PASE is that the list doubles as a hiring filter and a promotion ladder. The firm is unusually loud about mentorship and staff development for an industry that often treats young engineers as billable hours with legs.

The proof came in 2021. After three decades, Don Peoples did the thing founders rarely do gracefully: he left, and he did not sell to the highest outside bidder. Leadership passed to five of the firm’s own - Bill Wells, Azlan Ezaddin, Greg Bruce, Dave Lo and Matt Knutsen. Azlan Ezaddin now serves as president. A succession that keeps the company in the hands of the people who built it is the truest test of a culture. PASE passed it.

That continuity matters more in engineering than in most fields. Structural knowledge does not live in a manual; it lives in the judgment of people who have watched a thousand details succeed and a few fail. When a founder sells to a conglomerate, that judgment often walks out the door within a few years. By promoting from inside, PASE kept its institutional memory intact - the accumulated 250 years of combined experience the firm likes to advertise is not a marketing number so much as a payroll fact. The engineers who solved yesterday’s hard problem are still around to mentor whoever inherits tomorrow’s.

“An innovative structural engineering firm with 250+ years of combined experience in structural and seismic design.” - The PASE tagline, doing more lifting than it lets on
Selected Work

Names You Know, Steel You Don’t See

A short list of structures PASE helped keep standing - across the cloud, the campus and the community.

Meta · Prineville, OR Meta · Altoona, IA Meta · Sweden Meta · Singapore Vantage Data Centers · CA3 & CA-21 CoreSite Crescent Village Community Rainbow Light HQ
CAPTION - Eight names, one job description: do not fall down. So far, so good.
Track Record

A Few Things Worth Filing

1990
Don Peoples founds Peoples Associates Structural Engineers in San Jose.
2012
ENR Magazine names Facebook’s Prineville data center “Best of the Best” - PASE was the structural engineer.
2021
Leadership transitions from founder to a team of five principals; ENR California recognizes the Vantage data center campus.
2022
Silicon Valley Business Journal lists PASE among the region’s largest engineering firms; firm secures $5M in debt financing.
2025
New Vantage data center campuses (VCN, VLL) added to the portfolio.
The Margins

Notes From the Scrapbook

First of its kind. PASE engineered the structure of the very first Facebook (now Meta) data center in Prineville, Oregon.
San Jose to Zagreb. The firm runs offices across California, Maryland and Croatia - a Silicon Valley shop with a European desk.
Kept in the family. In 2021 the founder handed the company to five of its own engineers instead of selling to outsiders.
Older than the buildings. Their 250+ years of combined experience outlasts most structures they’re asked to evaluate.
Invisible on purpose. The best PASE work is the steel and foundation you never notice - because it never gives you a reason to.
The Last Word

Back to the Quiet Room

Return to that server hall at night. The machines still hum. The building is still perfectly, deliberately still. Nothing about it announces that an earthquake fault sits a few miles away, or that a firm of engineers in San Jose spent months making sure the room you are standing in would shrug off the worst the ground can offer.

That is the trade PASE made a long time ago: to do work so thorough it disappears. The internet you scroll, the apartment you sleep in, the lab where someone’s research is running overnight - many of them rest, quietly, on calculations the public will never read and connection details no one will ever photograph. PASE is fine with the anonymity. The stillness is the signature. And as long as the buildings stay up and the data keeps humming, the firm that planned for the worst day will have done exactly what it set out to do in 1990 - and you’ll never have to think about it at all.

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Video interviews & product demos: PASE does not currently host a public YouTube channel - check the newsroom and LinkedIn for the latest project walk-throughs.