duo&co
Marketing engineers. Also sisters.

Smart marketing beats busy marketing.

We help tech startups turn AI into sharper marketing, smarter ops and actual growth. Oh, and meet the new co... it does all the heavy lifting and a human approves everything!

01 · The principle

Automate the boring bits. Obsess over the good ones.

We wire AI into your funnels, content and operations. But your judgment, taste and voice stay firmly in charge. No slop. No dead-eyed chatbots. No nonsense.

Human in the loopYour voice, trained inNo slop shipped
Your marketing · shipped by us live
Competitor scansAI
Weekly reportsAI
First draftsAI
the line · humans from here
Brand voiceHuman
Strategy callsHuman
Final sendHuman
02 · Meet the new co

Meet the new co.

Three agents do the work. You approve everything before it goes out.

Colette

copy

Writes it.

Cosmo

data

Reads the numbers.

Cleo

design

Makes it look right.

Meet the new co
03 · The human bit

AI makes the first move. Humans make it worth reading.

We use AI to get further, faster. Decisions, edits and the final send still belong to people. Radical, we know.

Launch email · v3 in review
AI draft

Unlock seamless synergy with our revolutionary platform.

Human edit

Your onboarding just got 3 steps shorter.

Example
Tone
92
Clarity
88
Slop
0
04 · The point
Less busywork.

More time for the thinking, testing and talking-to-humans that actually moves the business.

05 · Who we are

Two sisters and a collective.

duo&co started as the two of us plus the best designers, marketers and devs we knew. Co is that collective, rebuilt. Same standards, less chaos. And we still read everything before it goes out. Obvs!

Who we are
Illustration of Swann and Roxy, the two sisters behind duoand.co
Start here

Book an audit. We'll show you exactly where AI earns its keep, and where it doesn't.

One working session on your marketing and ops. You leave with a plan you can run, not a pitch deck.