Can you please tell me what the weather is like in San Francisco today?
Who talks like that?
That’s exactly where most marketers are with AI today…
We've been lurking since before LLMs were cool…
Building with LLMs since 2023, back when everyone thought GPT was just a party trick. While institutions scramble to catch up, we've reverse-engineered what actually works in the wild.
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Happy Clients
And we're still friends with the 2 unhappy ones. (They just weren't ready to let go of their 47-step approval process.)
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AI Toolmates Built
Each one hand-crafted with intention—not vibe-coded to sound helpful while lacking substance. Built to solve real
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Obsessive Nerds
Equal parts engineers and artists, creatives and critical thinkers, always hunting for the next messaging challenge to crack.
We believe
The future belongs to marketers who embrace AI as a core competency (not just another tool in their tech stack)
The real magic happens when you stop nitpicking prompts and start building an AI Toolmates that think like you because they are you (or at least, a digital twin making all the micro-choices you’ve already pre-approved).
That’s how you:
- Nail your message across every channel
- Hit the right value props again and again
- Convert without rewriting the whole funnel every sprint
P.S. Yes, even at the breakneck pace of B2B SaaS.
Hi! I’m Hillary Lyons, founder of Syntropy.
There’s a lot I could tell you about myself (like how I make killer sourdough and have strong opinions about sycophancy bias… don’t get me started).
But let’s start here:
- I'm not one of those AI experts who thinks robots should replace humans. (That's ridiculous.)
- I spent years as the marketing lead for fast-growing SaaS companies. In other words: I know exactly how frustrating it is when your messaging can't keep pace with your product roadmap.
- I'm obsessively organized (my clients say I have an "engineering mindset" which I take as a compliment, despite my liberal arts degree).
Finally, I’m almost always up for talking about messy marketing problems.
It's extremely rare to find someone who understands both the technology AND can translate it into compelling business messaging. Hillary does that and more. She's very structured, and she is always one step ahead of me.
Meet the (tech-obsessed) humans behind your AI Content Engine
Eileen Zajac
AI Context Engineer
Seven-year nomad who can build a GPT system faster than most people can find their departure gate. On a mission to make your AI marketing work for you.
Sienny Thio
Brand & UX Designer
Former pastry chef turned full time visual brand builder. Sienny creates “lived-in” brand experiences that feel unapologetically human, yet still keep up with product sprints.
Will Mwaka
Brand Copywriter
Former software dev turned storyteller. By day, he writes crisp copy. Off-hours, he’s a rapper experimenting with hip hop, R&B, Afro, and soul.
Chloie Dimayuga
Content Creator
Political science brain, creative at heart. Chloie’s zone of genius is building organized, reliable social workflows and bringing strong visual thinking to campaigns.
Carolina Diaz
Brand Designer
Can’t read a menu without redesigning it. Still obsessed with signals and structure. Known for brand visuals that get you unstuck and re-inspired.
Hillary Baquilod
Project Manager
With an engineer's brain and a process designer's instincts, Hillary turns scattered data into clean systems, so our team can find more flow (and fun) in our work.
Yella Felicilda
Notion Wiz
Yella builds the Notion workspaces that hold Syntropy (and our clients's brands) together. She turns scattered docs and tribal knowledge into clean templates, SOPs, and systems teams will actually use.
Caitlin Zigthor
Strategist
Founders trust her with the long view and the day-to-day because she absorbs the business like it's her own, keeps the goals front and center, and delivers the kind of consistency most agencies promise but rarely ship.
Principles > Prompts
These beliefs are our steady compass in the “AI Wild West”
AI augments, never replaces
AI should amplify your team’s talent — not sideline the people who make your brand matter.
Build on what's already working
AI plugs into your proven processes to shave time, not tearing anything down.
Living systems over static docs
You steer; our adaptive system keeps every message current and unmistakably yours.
Radical clarity
Plain language, hard numbers, and transparent processes keep hype low and trust high.
Want to work with Syntropy?
Here are some options for your next steps.
Join the next AI Marketing Office Hours
Drop in, nerd out, and pose your questions. We’ll share real AI use cases. 110% Free. No pitch.
Take a peek under the hood
Learn how we build scalable AI marketing systems out of your brand DNA.
Skip the 101 and take the wheel
Let’s talk about what AI could actually do for your team and get building.
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