We build the modern web. For everyone.
Castellan is based in Southern California, building affordable, high-quality experiences for startups, creators, and brands of all sizes.
We deliver results.
Your website, mobile app, or digital platform is important.
Whether you're looking for extra hands, support, or a complete redesign, we can help you realize your digital potential and fulfill your mission.
How we help.
AI that empowers and inspires
We build AI tools that help you get more done, faster—so you can focus on the most meaningful parts of your job.
Handcrafted designs that empower your brand
Great design isn't just beautiful. It's functional, fast, and built to leave a lasting impression.
One complete package
From design to deployment, we handle every step—so you get a seamless, performant digital experience without the hassle.
Accessibility for everyone
We build with inclusivity in mind, ensuring your platform meets WCAG standards so you can reach more users and avoid costly litigation.
Digital experiences that deliver results
We blend data-driven insights with artistry to create products that are visually stunning but also built to perform.
Quality that doesn't break the bank
Scalable, high-performance solutions shouldn't come at a premium. We deliver efficient, superior solutions at a fraction of the cost.
How we work.
We pride ourselves on communicating clearly and setting the right expectations, even before we start working with you. So, here's what you can expect from our partnership.
Build trust.
Every project is a partnership, and we are personally invested in your success.Craft solutions.
Your unique goals require custom-built, innovative, and pragmatic solutions.Keep going.
We're always ready to tackle the next phase or project — or help you take it on yourself.
What to expect.
What to expect.
Talk to our team.
Discover the value of Castellan for your organization. We'll give you a website demo and discuss your requirements.