Joshua Supitskiy is the founder of Signal AI Agency — a Brooklyn practice helping independent businesses get cited in ChatGPT, Perplexity, and Google AI Overviews.
"Built and run by one person, on purpose, since 2025."
Signal AI Agency was started in Brooklyn in 2025 to solve a specific problem: most local businesses were invisible to ChatGPT, Perplexity, and Google AI Overviews. The websites were built for the old web — for blue-link search results — not for the retrieval-grade infrastructure that AI engines need to cite a business correctly.
Before Signal, I earned my MS in Business Analytics at Baruch College's Zicklin School of Business, finishing with a 4.0 GPA. The training was in the modeling, statistics, and data engineering side of analytics — not marketing — and that perspective shapes how Signal works today. Every site we ship is built around how AI engines actually retrieve, parse, and cite — not around what looks good in a brand deck.
The shift from search to AI answers is the largest change in customer acquisition since Google itself. When someone asks ChatGPT "best optometrist in Crown Heights," the answer they get is the answer most of them will act on. They will not click ten blue links. They will read one or two sentences and dial a phone.
Brooklyn independent businesses — the optometrists, gyms, dentists, accountants, salons, martial arts studios — are the ones with the most to lose, because they're the ones being asked about. Signal exists to make sure your business is the one named in that answer.
Every site is custom-built in Next.js with TypeScript, deployed on Vercel, and instrumented with full Schema.org markup that AI crawlers can actually parse. The work is hand-built, not template-stamped — because retrieval-grade content cannot be templated.
Two named case studies are public:
Signal is a one-person practice. Every site is touched by the founder. Every line of structured data is written by the founder. Every audit is read by the founder. There is no offshore team, no delegated support tier, and no "strategy partner" who shows up for the kickoff and never again.
That's the whole point. AI search optimization is too new and too consequential to outsource to a junior. Signal does not scale like a marketing agency, and that's the constraint that makes the work good.
If you want to see how a Brooklyn business looks after Signal has worked on it, read the Nostrand Optical case study. If you want to see what we publish for clients between client work, browse the Journal. If you want to see whether AI is currently recommending your competitors, take the free audit.