The drawing

We Design It.

It starts as a single line on a white sheet, drawn by people who will build it.

The building

We Build It.

It ends as a landmark on the skyline, standing exactly as the sheet said it would.

Topping out…
Helios · Services

What we do.

Design-build services for the facilities the modern world runs on — one team from the first line to the final light.

PRECON Preconstruction

Estimates, ROMs, value engineering and constructability — the grid goes down on paper before anything goes up on site.

D-B Design-Build

One contract, one team — half the sheet is still the plan, half is already cut and pochéd. No hand-offs, no translation loss.

GC General Contracting

Ground-up buildings and heavy renovations — self-performed, concrete to conduit, with our own crews.

MEP MEP Engineering

In-house electrical, mechanical and plumbing design — supply out, return back, stamped and clash-free before the field sees it.

MC Mission-Critical Facilities

Main-tie-main, N+1, five nines — dual utility, one tie breaker, and loads that never notice a thing.

HC Healthcare & Institutional

Hospitals and medical buildings delivered in phases around live operations — approved at every step.

CX Commissioning & Energization

Level 1–5 testing, witnessed energization, as-builts that match the IFCs — generator to ATS to transformer to bus, every feeder proven before the keys change hands.

Helios · Markets

Where we build.

Four markets, one standard — the facilities that can't afford a bad day.

01 · AIDC

Data Centers & AIDC

Site selection, design, procurement, construction, O&M and asset disposal — the full life cycle, turnkey.

Design & construction to Tier standards
02 · HDC

AI / HPC Liquid Cooling

Containment, in-row, rear-door, direct-to-chip and immersion — retrofittable, free-cooling ready.

Up to 100 kW+ per rack
03 · PWR

Energy & Power

Serving renewable energy clients and fostering US–international energy cooperation as an ECP Foundation member.

ECP member · Houston & Beijing
04 · IT

IT & Supply Chain

Warehousing, integration, logistics, ICT buildouts and 7×24 data-center operations through the CALDATA network.

Integration warehousing & logistics
The team · The difference

Global perspective. Local execution. One team end to end.

Extensive resources

A wide network across data centers, computing power and energy — industry advantage integrated into every delivery.

Internationalization

Localized professionals who understand cultural differences — seamless communication, services aligned with client needs.

Comprehensive services

One-stop, end-to-end — from initial consultation and project execution to follow-up support. One number to call.

Process · Full life cycle

Every project is one sheet, revised to done.

End-to-end services for localized deployment of data center and HPC infrastructure — from the first site visit to responsible asset disposal.

REV 0Site selection

Survey, evaluation, consulting

Δ1Design

Concept to IFC — cooling, electrical, intelligent systems

Δ2Procurement

Local + global supply chain, integration warehousing

Δ3Construction

EPC delivery — racks, trays, containment, cabling

Δ4Commission

Testing, certification, acceptance reporting

O&MOperate

7×24 teams, maintenance, upgrades, asset disposal

Global reachCALDATA

IT resources sourced worldwide through the CALDATA network — North & South America, Europe, Southeast Asia and Japan.

Partners & platforms
WescoVertivEatonJohnson ControlsAIVRESECP Foundation

HELIOS leads design, planning and integration as the general contractor; CALDATA provides direct IT resources worldwide — one binding partnership, end-to-end delivery.

HELIOS × CALDATA · Strategic partnership
Next plot

Hand us the pen.

A load number, a site, or a full IFC set — the line starts moving the day you send it, and it doesn't lift until the lights are on.

Visit us — 100 Century Center Ct, Suite 203, San Jose, CA 95112