Contact Yellowfin Development
Get a custom proposalWeb Design & Marketing that get businesses found.
Yellowfin Development was founded in 2013, but the experience behind it goes back to 1996. Stephen Knight served as a computer operator in the U.S. Marine Corps before spending nearly three decades building websites – across agencies, in-house teams, and hundreds of direct client engagements spanning healthcare, finance, nonprofits, entertainment, retail, and professional services.
Based in Freeport, New York, Yellowfin serves small businesses across Long Island in Nassau and Suffolk county and across the United States. Every project is handled directly by the owner. No account managers, no outsourcing, no hand-offs. You get one experienced developer designer who knows your site inside and out, answers when you call, and hands you his direct cell number.
Full service across the entire life of a business website: design and development, WordPress and WooCommerce, SEO, Google Ads, local listings and Google Business Profile, business email setup and migration, hosting, domain management, website repair and rescue, and ongoing support.
Veteran-owned (U.S. Marine Corps), Google Ads and Analytics certified, and building websites for nearly three decades. Based in Freeport, serving Nassau County, Suffolk County, all of Long Island, and small businesses nationwide. Nearly thirty years in, and the phone still gets answered!
“I founded Yellowfin in 2013 because local businesses deserved a better partner. Most agencies throw technical jargon at you, hand you off to a junior account manager, and disappear when something goes wrong. When you work with us, you’re not dealing with a call center or a ticket queue. You have my direct cell phone number.” - Stephen Knight, Founder, Yellowfin Development
Services:
- Website Design & Development
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Website Repair
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Online Stores
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SEO & Search
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Marketing & Ads
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Hosting & Email
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Website Support
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Domain Names
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$99 Marketing Plans
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Min project size
$1,000+
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Hourly rate
$50 - $99 / hr
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Employees
2 - 9
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Locations
Freeport, NY
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Year founded
Founded 2013
1 Locations
- Freeport , NY
Service Lines
- Web Design
- 25%
- Web Development
- 20%
- Pay Per Click
- 15%
- Graphic Design
- 10%
No Focus Areas have been added yet…
Industries
- Construction
- 10%
- Franchises
- 10%
- Home Services
- 10%
- Information technology
- 10%
- Medical
- 10%
- Non-profit
- 10%
- Retail
- 10%
- Arts, entertainment & music
- 5%
- Business services
- 5%
- Food & Beverage
- 5%
- Insurance
- 5%
- Legal
- 5%
- Other industries
- 5%
Clients
- Small Business (<$10M)
- 100%
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Our Story
We’re Yellowfin Development, a Long Island web design and digital marketing studio led by founder Stephen Knight. With roots in web work since 1996 and Yellowfin founded in 2013, our one-owner model delivers hands-on WordPress/WooCommerce sites, hosting, email, SEO, Google Ads and ongoing support. We prioritize direct contact, data-driven recommendations, fast turnarounds, and long-term client relationships—500+ sites, 29 years’ experience, 5-star ratings.
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