1001 S Main St, Ste 500, Kalispell, MT 59901WhatsApp +1 (202) 249-5836team@apexoengineering.com
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Structural Engineering · White-label Ready

Permit-ready structural plans, engineered to approve.

Apexo is the structural engineering partner working behind architects, contractors, and developers — producing PE-stamped, code-compliant plans built to clear plan-check. Six years in, 300+ permitted projects across the U.S.

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Code-fluent:  CBC · IBC / IRC · ASCE 7-16 / 22 · NDS · local amendments

6+
Years specialized practice
300+
Permitted U.S. projects
CA · FL
TX · MO+
Jurisdictions served
100%
Permit-focused deliverables
Why Apexo

Not anonymous freelancers. An engineering partner.

You get an experienced, white-label-ready team that plugs into your workflow and takes full ownership of the structural scope. We work quietly behind your brand — so you can focus on winning and building the work, while the load paths, calcs, and plan-check details are handled.

The difference

Keep projects moving — without the structural bottleneck

No more stalls from unclear load paths, unanswered RFIs, or endless corrections. Here's the before and after.

Without a reliable partner

  • Unclear load paths and open RFIs
  • Rounds of corrections that stall permits
  • Surprise costs and slipping schedules
  • Hard-to-reach, unaccountable help

With Apexo

  • Well-organized, permit-ready structural plans
  • Upfront, fixed pricing — no surprises
  • Proactive communication and full ownership
  • Deliverables built for first-pass approval
Services

Structural engineering, end to end

From carports to attached and freestanding structures, with plan-check support to carry every set through approval.

Who we help

Built to sit behind your brand

Apexo integrates into your team and time zone, delivering structural work you can put your name on.

Architecture firms

White-label structural

Your sheets stay yours. We provide the structural design and calculations behind your drawings, coordinated to your set and standards.

GCs & ADU builders

Predictable, permit-ready packages

Fixed-price scopes and clean deliverables that clear plan-check — so your crews can keep building without engineering delays.

Developers & PE firms

Capacity and consistency

Reliable overflow and outsourced structural production across multiple projects, with QA/QC that keeps quality consistent.

How it works

A simple plan to keep your project moving

Clear scope, expert review, and permit-ready delivery — with you informed at every step.

01

Scope & Proposal

A short call to confirm scope and deliverables, with fixed, upfront pricing.

02

Design & Reviews

We produce drawings and calculations with internal QA/QC and coordination.

03

Permit-Ready Delivery

Stamped where applicable and ready for submittal — with support through approval.

Code fluency

Designed to the codes your jurisdiction enforces

U.S.-aligned QA/QC, standardized checklists, and clear communication keep quality consistent — project after project, jurisdiction after jurisdiction.

CBCIBCIRCASCE 7-16ASCE 7-22NDSLocal amendmentsSeismic & wind
Selected work

A look at the deliverables

Calculation reports and structural sets prepared for real U.S. permit submissions.

Project sample
Coming soon

A featured project will appear here. Details to be added.

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Project sample
Coming soon

A featured project will appear here. Details to be added.

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See full portfolio
Supun J, Founder and Lead Structural Engineer at Apexo Engineering InternationalFounder & Lead Engineer
About the founder

Supun J

Over six years of specialized structural design for residential and light-commercial projects across multiple U.S. jurisdictions. Working alongside licensed U.S. engineers, Supun makes sure every project is fully compliant, efficiently executed, and ready for permit approval.

  • 300+ projects completed across CA, FL, MO, TX, and other states
  • Timber, steel, ADUs, carports, patio covers, seismic retrofits, additions & remodels
  • Fluent in CBC, IBC, ASCE 7-16/22, NDS, and local amendments
  • Trusted by engineers and developers for outsourced structural solutions

"I believe structural engineering should be accurate and fully aligned with permit requirements. My role is to simplify communication and provide clear, code-compliant solutions that help professionals build with confidence."

Testimonials

Trusted on real projects

“
Apexo Engineering provided exceptional structural consulting for our project. Their precision, expertise, and commitment to safety gave us complete confidence throughout the process.
IMIshita MalhotraProject Manager, Skyline Developers
“
Working with Apexo was seamless. Their solutions and professional approach ensured our building project was delivered to the highest standards.
KJKylo JamesDirector, BuildTech Constructions
FAQ

Questions, answered

Are your structural designs aligned with U.S. building codes?
Yes. We design to IBC/IRC, ASCE 7, NDS, and the local amendments that apply to your jurisdiction, so deliverables are prepared to be permit-ready.
How do project timelines work?
Turnaround depends on the scope and complexity of the work. We confirm a clear timeline together with your fixed proposal before anything begins, and keep you updated through delivery and approval.
How do you maintain quality while working remotely?
U.S.-aligned QA/QC, standardized checklists, and structured communication workflows keep our quality consistent from anywhere — and keep you in the loop throughout.
How does your engagement process work?
We start with a scope discussion and a fixed proposal, then integrate into your workflow and time zone. You stay informed from kickoff through permit approval.
Can you work under our firm's brand?
Absolutely. White-label engagements are a core part of what we do — we deliver the structural design and calculations behind your sheets so the final set stays yours.
Insights

Field notes from the drafting desk

See all insights
Let's build

Let's get your project permit-ready.

Tell us about your scope and we'll come back with a fixed proposal. No obligation.

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Contact us

Request a structural engineering quote

Send us your scope and we'll reply with a fixed proposal. The more detail you share — project type, location, and drawings if you have them — the faster we can scope it.

White-label ready300+ permitted U.S. projectsFixed, upfront pricing

Quick inquiry

Tell us about your project

The full inquiry form with file attachments lives on the contact page — including fields for project type, location, drawings, and more.

Open the full inquiry form

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