Company

A physics-based water technology company.

WITHUS INC. builds physics-based, chemical-free water conditioning technology. q.wave is our first platform.

Brand Story

It began with an invisible rhythm

Every moment, your heart sends out a signal you'll never see.

Right now, thousands of radio waves are passing straight through you.

Your voice moves the air itself, reaching someone else as an invisible wave.

Even visible light is just a sliver of everything that's out there.

Water has a rhythm too — one you'll never see, but it's always there.

We began to explore its rhythm.

Mission

Engineering the Next Generation of Water

Built on Physics

q.wave adds nothing to your water. It changes the conditions around it — so water works better on its own.

We combine physics-based sensing with a signal that never stops adapting, conditioning your water continuously and changing how efficiently it moves.

Agriculture. Cooling and heating. Industrial water. q.wave works across all of them.

Not adding more.
Unlocking what's already there.

That's next-generation water management, as we see it.

How We Work

Grounded in Science. Proven in the Field.

We start with real conditions, not assumptions.

Scientific Approach
We study water's electrical properties, flow rate, source, and operating environment, then design systems around the data.
Field-First
We put the technology to work where water actually flows — farms, irrigation systems, cooling and boiler systems — and keep checking that it performs.
Practical by Design
We build around your existing infrastructure wherever we can, fitting the system to your pipe size and operating conditions.
Straight Talk
We point to observed results and data, not hype.

Good technology proves itself in the field — not in the pitch.

TEAM

Different disciplines.
One technology.

q.wave didn't come out of one field. It came together at the intersection of four: Physics, which explains what water actually does. Semiconductor Engineering, which builds the precision behind the signal. Algorithm & Control, which responds to water in real time. And Field Engineering, which makes it all work on-site.

Different expertise, one goal. Together, they became a single Intelligent Water Conditioning Platform — spanning sensing, signal generation, control, and the Treatment Zone.

Physics + Semiconductor + Algorithm + Field

01

Physics & Water Science

Understanding how water behaves and interacts physically — the scientific groundwork q.wave is built on.

02

Analog & Digital Semiconductor Engineering

Building the sensing and electronics that catch subtle changes and turn them into a precise control signal.

03

Algorithm & Control

Reading the sensor data and running it through an MCU-based algorithm that shapes a signal that keeps changing over time.

04

Field Engineering

Taking the technology into real farms and industrial sites, and building systems around each one's water source, flow rate, piping, and operating conditions.

Founder & CEO

Good Oh

Good leads q.wave's technology and commercialization. He connects Physics, Semiconductor Engineering, Algorithm, and Field Engineering into one Intelligent Water Conditioning Platform.

And he solves the real challenge: turning different sciences into one solution that actually works in the field.

A Note from Good

"Industrialization made our lives easier — but the pollution it left behind has quietly reached even the places we can't see, and it's now tied to our own lives. I want to wake water up, and turn that into something useful for this era. I know it won't be easy. But I find happiness in overcoming the challenges along the way, and I'll keep working to bring that value to more places, and more people."

Different Disciplines. One Purpose. Better Water.

Global Offices

A global team, close to the field

North America

WITHUS INC.

Florida, USA

Contact · Good Oh (Founder & CEO)
Email · goodohwithus@gmail.com
Phone · +1 813-560-4367

South Korea

주식회사 써린 (Serene Co., Ltd)

서울시 송파구 중대로 197, 305호
A358, 305, 197, Jungdae-ro, Songpa-gu,
Seoul, Korea · 〒 05703

Contact · Jungwoon Lim (CTO)
Email · dhkwon0707@gmail.com
Phone · +82 10-6575-8470

Singapore

WITHUS Technology P/L

1 Pemimpin Drive,
One Pemimpin #10-06
Singapore 576151

Contact · Tong Jifeng (Manager)
Email · TDM.TONGJF@gmail.com
Phone · +65 9277 2940

Field Site
Palmetto, FL (expanding beyond Armstrong Rd Farm)

The next site we prove this on
could be yours

Let's get started →