Website Design & Marketing Solutions
Custom websites and marketing strategies designed to grow your business. Learn More Serving Long Island and New York for over 25 years, Yellowfin Development specializes in web design, web development, and digital marketing, creating responsive, mobile-friendly websites tailored to businesses of all sizes.
Yellowfin Development is a Long Island, New York-based web design and marketing firm specializing in creating professional, responsive business websites at competitive prices. With over 25 years of experience, we have the expertise, creativity, and resources to deliver modern websites for businesses of all sizes. Our solutions focus on attractive, functional designs that meet your goals while respecting your budget and deadlines. We provide comprehensive services in website design, development, and digital marketing to help your business stand out online with a clean, user-friendly, and results-driven web presence.
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Ex Machina
Ex Machina Soundworks is a manufacturer and producer of professional, high-quality studio monitors.
Refresh Refinishing
Refresh Refinishing provides tub, tile and kitchen remodeling and resurfacing services for the Northeast Ohio Community.
Edmiston CPA
Providing full accounting solutions, IRS representation, CFO services, business advisory services and more.
Hero Down Foundation
Custom nonprofit website design for Hero Down Foundation and its mission.
[View Our Portfolio](/content/portfolio/ "View Our Portfolio"/index.html)
Website Repair
Professional Website Repair, Updates & Maintenance Services in Long Island Is your website broken, outdated, or simply not...
Website Hosting
A website is only good if it’s up and running reliably. Yellowfin Development is Long Island’s Best Website...
Web Design
Yellowfin Development specializes in responsive web design. We’re an experienced team with the skills required for every project...
E-commerce Solutions
Shoppers spend a significant amount of downtime on their mobile devices; why not give them the option to...
Want to talk? We are available when you need us!
I brought Stephen in last minute for a project after our other resource fell off. He was professional, fast and his work was solid. Really helped our agency deliver to our client. He is now our main go-to developer.
Rich Callaghan
Senior Producer
OP-77
Stephen has been very clear in his communication and timelines towards project production. He is very easy to work with and has done a great job with our website, I would happily recommend him.
Colin A Watley
Managing Partner
Azul River Water
Stephen answered all of our questions and helped guide us through the entire process of building our new website. He went above and beyond with the website design and we could not be happier with the end result!
Ulla Pfneudl
Owner
Comfy Yoga
It was a pleasure working with Stephen from Yellowfin, from inception to deployment of our new website his professionalism and work ethic were top notch. I will definitely be working with them again on future projects.
George Caruso
CTO
Sonoran Coffee
Yellowfin did an absolutely fantastic job rebuilding our website and adding our booking extensions to the site. Fair price, very knowledgeable and good delivery time. They also host and support our website.
Adam Ferracane
Owner
Refresh Refinishing
Great service, incredibly helpful, insightful and took the initiative with helping us dial in creative design decisions, beyond just the website design. Looking forward to our continued professional relationship.
Dan Physics
Ex Machina
Sound
Our Clients
Just a Few of Our Satisfied Clients
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Insights And Information
LATEST NEWS FROM YELLOWFIN DEVELOPMENT
100 Million ChatGPT Users Later… Google Search Is Still Growing Year Over Year
Despite AI's rapid growth, Google Search is still gaining traction. Here’s why organic visibility, strong web design, and modern SEO still matter for businesses adapting to the future of search.
Take Your First Step Toward A New Website!
Interested In:Web DesignWebsite RepairEcommerce SolutionsCMS DevelopmentBrandingContent StrategyHosting & ManagementSearch Engine Optimization$99 Marketing Plan
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Design & Development
Serving Long Island and New York for over 25 years, Yellowfin Development specializes in web design, web development, and digital marketing, creating responsive, mobile-friendly websites tailored to businesses of all sizes.
Our Services
Michelle Maggio
I highly recommend Yellowfin Development. Stephen did an exceptional job developing my website. He was very professional, knowledgeable, and creative. He was able to listen to my vision for my website and create it exactly as I had imagined. The site has definitely helped grow my business. You can take a look at his amazing work at michellemaggioacupuncture.com and see for yourself. Thanks so much Stephen!
Robert Magaletta
Incredible experience over the past few years. I highly recommend!!!
Dan Physics
Great service, incredibly helpful, insightful and took the initiative with helping us dial in creative design decisions, beyond just the website design.
Refresh Companies
Yellowfin did an absolutely fantastic job rebuilding our website and adding our booking extensions to the site. Fair price, very knowledgeable and good delivery time.
They also host and support our website. Stephen is always fast at making little edits when updating info for us.
I would recommend to anyone and will be. using them in the near future for another project.
Dennis Rogers
Great service and attention to detail! Will use again, thanks Stephen!
Derek Verbeeck
I contracted Yellowfin for development of a multiuser forum website for multimedia artists. Their efficiency in getting the job done is commendable, and interfacing with their team during the design phase was a very smooth process. Great experience all around, and I would highly recommend them.
Matthew Vesey
A site of mine was in serious need of modernization after years
of neglect and Yellowfin provided the needed solutions. Very
responsive to any concerns I had and the attention to detail was
exceptional. Highly recommended.
Ulla Knight
Stephen created a gorgeous looking website that set us miles apart from our competition. He is very easy to work with, replied to all questions promptly and really helped us with design decisions and the technical side of things.
Andrew Turpin
I can attest to this shops amazing quality and effective SEO implementations. The shop as a whole was easy to work with, responsive, and delivered on time and, importantly, on budget. Do not hesitate to contact Stephen for a quote and see how his shop can do for you what it has done for others.
Shawn Q
Professional and courteous, Yellowfin is able to communicate effectively and meet the needs of it's clients, and I highly recommend them.
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