A clear path to being recommended.

Guidestone is an AI visibility and fractional marketing firm in Connecticut, founded in 2026. We help growing businesses get found, cited and recommended by ChatGPT, Google AI and Perplexity, and we provide part-time, senior marketing and operations leadership. Founder-led. Carl Keyser does the work himself, with no account managers in between.

The name comes from the stones that once marked trails: a guidestone doesn't raise more questions, it shows people where to go. That's the job: make it obvious to AI, and to the customers who use it, what your business does, where you do it and why you're worth recommending.

Carl Keyser, founder

Carl Keyser has spent 20 years in marketing, leading inbound, content and AI visibility programs. In his most recent in-house role he kept his company’s AI citations between 400 and 600, cut paid media spend by more than 80% without losing opportunities, and contributed to more than 1,000 inbound contacts that became sales opportunities. He has also led creative teams, launched a video podcast that grew YouTube subscribers 300%, and grown a company LinkedIn following by more than 6,000.

Highlights

• Kept a company’s AI citations between 400 and 600
• Cut paid media spend by more than 80% without losing opportunities
• Contributed to more than 1,000 inbound contacts that became sales opportunities
• Led a four-person creative team
• Launched a video podcast that grew YouTube subscribers 300%
• Grew a company LinkedIn following by more than 6,000

Tools

HubSpot, WordPress, Google Analytics, Google Ads, SEMrush, Adobe Creative Suite, ChatGPT, Claude, Perplexity.

Why Guidestone

In-house, Carl kept his company showing up in AI answers by working on both sides: a site AI could read, and citations from sources AI trusts. Guidestone brings that same approach to Connecticut businesses that don't have a full marketing team, or need senior help alongside the one they have.

Guidestone serves businesses across Connecticut, remotely anywhere in the state and in person in Fairfield, Hartford, New Haven and Middlesex counties.

Connect with Carl on LinkedIn