Software and people are equally important to growing revenue. So we built the software and hire the people.
Silver Leaf Agency is a marketing agency headquartered in Lewisberry, Pennsylvania, serving businesses across the United States. It was founded by Daniel Hemmerich and Samuel Zelnick, and it serves businesses that win customers through calls, forms, appointments, showrooms and sales teams.
Expert marketers run every account. We built their platform to handle everything a person should not be doing by hand. Every channel gets a number that ties to your revenue.
Updated
Silver Leaf Agency is a marketing agency headquartered in Lewisberry, Pennsylvania, serving businesses across the United States. It was founded by Daniel Hemmerich and Samuel Zelnick. The agency serves businesses that win customers through calls, forms, appointments, showrooms and sales teams, and it runs on software it built itself.
- Founders
- Daniel Hemmerich, Founder & CEO · Samuel Zelnick, Co-Founder
- Headquarters
- Lewisberry, Pennsylvania, United States
- Area served
- United States
- Services
- Paid advertising · SEO and AI search visibility · analytics and conversion tracking · AI content and automation · websites · traditional marketing
- Industries
- Home services · manufacturing · professional services · water treatment dealers, and businesses like them
- Contact
- (717) 220-3332 · hello@silverleafagency.com
Daniel Hemmerich
Founder & CEODaniel has led the technology and operations behind digital marketing for twenty-five years. He architects the platforms campaigns run on — lead, call and revenue tracking — and he runs the teams and processes that turn those platforms into results. He has done it at scale: leading a 550-person agency with $100 million in annual recurring revenue.
He has run the marketing as well as the software: technical and local SEO, visibility inside AI assistants and AI Overviews, paid search and shopping, paid social and video, content, email and CRM, conversion optimization, and high-volume lead generation with call centers and sales teams wired into the feedback loop. The measurement discipline behind Silver Leaf — GA4, server-side tagging, call tracking, multi-touch attribution, offline conversion import — is his, which is why every channel here reports in leads and revenue instead of impressions.
He has also built and run companies, including a lead-generation agency that grew past $15 million in revenue with more than 400 call center agents. In 2022 he secured his firm a place among the first fifteen organizations given pre-beta access to Google's generative AI products. Today he builds the drafting, monitoring and campaign review tools Silver Leaf's marketers use every day, and he has taught computer science as adjunct faculty at Messiah University.
He lives in Lewisberry, Pennsylvania, and has coached youth hockey and soccer in Central Pennsylvania since 2015 — more than 2,000 volunteer hours.
Memberships & certifications
Samuel Zelnick
Co-FounderSam is the founder and managing partner of Sora Capital, the Zelnick family's investment vehicle, where he oversees private equity, real estate and other investments and works closely with portfolio company management teams on strategy, growth and capital allocation.
He is chairman and chief executive of RS Water Holdings, which has grown through acquisition and organic investment into the largest Culligan dealer in Texas, with operations across Dallas–Fort Worth, Houston and other parts of the state. Running it has given him firsthand experience with what multi-location service businesses face: customer acquisition, digital marketing, brand development, geographic expansion, and measuring the return on marketing investment. He is also chairman and chief executive of SZ Property Holdings, Sora Capital's commercial real estate platform in Texas and Florida.
Sam helped establish Silver Leaf to bring an owner's and operator's perspective to digital marketing — built on the belief that marketing should be judged not by traffic, impressions or leads, but by its ability to generate profitable growth and long-term enterprise value.
Before founding Sora Capital in 2011, Sam spent more than a decade in investment banking at Bank of America Merrill Lynch and Dresdner Kleinwort Wasserstein. Over his career he has advised on more than $10 billion of completed mergers and acquisitions and more than $20 billion of capital raising. He holds an M.B.A. from Columbia Business School and a B.S. in Computer Science from Cornell University.
Nothing hidden.
Clients see everything — spend, results, work performed, and mistakes.
Judged in dollars.
Leads, calls, booked jobs, revenue. Not impressions. We ask what a job is worth before we ask what a click costs, and we'll tell a client to stop spending when the numbers say so.
Act before asked.
We find it, we fix it, then we tell you.
We treat your budget like our own money and your revenue like the scoreboard. That is the whole management philosophy.
Tell us about your business. We'll tell you what we'd do.
Or call (717) 220-3332. A written recommendation and a quote, free and with no obligation — including telling you if we're not the right fit.
Or call (717) 220-3332. Free and with no obligation.