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About

Keeping the human in the loop.

Signal78 is the agentic operating platform for agencies, built by agency people. The machines do the repeatable work. Your people do what only people can.

Our story

Why 78.

In March 2016, Go champion Lee Sedol sat down against AlphaGo, Google DeepMind’s AI. He lost the first three games. In game four, he played move 78, a move so unexpected it threw the machine off. AlphaGo faltered, then resigned. It was the only game a human won.

Lee didn’t play 300 brilliant moves. He played one. Move 78 was judgment, arriving at the one moment in the game where judgment changed the outcome.

“While AI is powerful, it is made more so when human ingenuity is the point of that power, not the casualty.”
MATT CYR, FOUNDER, SIGNAL78
A polybit Go player in a navy suit studies the board while a white robot arm places a stone
Game four · Seoul · March 13, 2016 The move that turned the game.

From Loop to Signal78

Built on years of helping agencies with AI.

Spring 2024

Loop opens

Matt Cyr starts Loop, an AI consulting firm named for one belief: AI can benefit humanity, but only if humans are in the loop.

May 2025

Agencies ask for help

After a talk at Mirren Live on AI and client relationships, agency leaders line up asking for help. Loop goes all in on agencies of 20 to 200 people.

2025

The same plumbing, every time

Every agency needs much the same foundation. Rather than build it from scratch for each one, we decide to build it once.

Summer 2026

Signal78 is founded

The platform becomes its own company, carrying Loop’s work and its humans-first idea forward.

Fall 2026

Live with agencies

In production since September, with design partners running real pursuits and reports on it.

What we believe

What we won’t compromise on.

More of the work that matters

Less busywork means more time for relationships, creativity and strategy. That’s where the margin is.

Autonomy is earned

Signal78 takes on more only as it proves itself on your work, with a person approving along the way.

Not everything should be agentic

Some work will always need a person. The goal was never to automate everything.

Agencies shouldn’t manage software

You got into this business for the work and the clients. We take care of the plumbing.

The team

Agency people, building for agencies.

Decades inside agencies and marketing teams, plus the engineering to make AI dependable. We’re based in Charleston, South Carolina, and work with agencies everywhere.

Polybit figures of the Signal78 founding team talking in a bright office
Matt CyrFounder & President

Matt Cyr

Nearly 30 years leading marketing teams, from Boston’s hospitals and universities to eight years running strategy and new business at a 100-person agency. Founded Loop in 2024 and speaks often on AI for agencies, including at the Build a Better Agency Summit.

Teri SunHead of Product

Teri Sun

A 20-year agency leader and innovation driver, with deep expertise in putting AI to work across complex agency teams. Teri leads how Signal78 is built, shaped and brought to agencies.

Neil BhayFractional CTO & Advisor

Neil Bhay

Deep AI engineering and systems architecture expertise. Neil guides Signal78’s technical direction and data privacy decisions, bringing rigor to a space that usually runs on hype.

The calm is the product.
The signal is the moment.

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Book a 30-minute demo

Pick a time that works. You'll see Signal78 running on agency work like yours.

Talk to us

Tell us a little about your agency and what you want AI to change. We'll reply within one business day.

Can’t we just build this in Claude?

The white paper on what it takes to keep a homegrown AI system current, secure and separated by client.