Portland Maine Website Development Company

Website design & development development services using industry leading technologies.

With offices in Kennebunk, Maine, 540 Interactive offers southern maine web design services.  We create intuitive and engaging websites for your customers. Our front-end design and development process creates a cohesive experience with an appealing UI for seamless navigation of your website. 

Request a Free Website Development Quote

Get a response within 1 business day.

Maine Website Design & Development Agency

540 Interactive, LLC specialize in creating mobile responsive websites that work seamlessly across desktop computers, tablets and smartphones. Whether it’s a simple microsite or a sophisticated enterprise solution, our work excels at engagement and effectiveness. Manage full-scale online shopping websites with our eCommerce solutions. Our Portland Maine Website Design Services include full customization of WordPress, WooCommerce and Shopify. We have also developed full-scale web experiences using the latest in web technology including Angular JS, React JS, Vue JS, Knockout as well as Progressive Web Apps.

Content management is always offered in our website development so our clients can manage their own content editing if they prefer or have us do it for you through one of our site maintenance & enhancement programs. 

All of website builds include the initial proper coding for SEO optimization including effective page titles, header tags and meta descriptions. We offer 30 days of free ‘light’ maintenance to quickly assist in any changes clients request post launch.

Serving Southern Maine Website Design & Development.

WordPress Development

We excel at full WordPress customization including eCommerce solutions and WordPress Rest API integration to use your WordPress website as a back-end for your mobile app. 

AMP Development

AMP is an open source HTML framework that offers a straightforward approach of development. Web pages developed with AMP are fast, smooth loafing and offer amazing user-experience.

HTML5/ CSS Development

HTML5/CSS3 front-end development services intended to revolutionize the browsing experience of users. HTML5 developers create internet rich applications. CSS3 website templates benefit web development services.

Maine Website Development Solutions


Product customizers, inventory tracking, auctions, make-an-offer.

Health & Medical

Interactive vitals charting, secure document transfer.

Fast Casual

Product builders, loyalty programs, geolocation pick-up and delivery.


Driver routing, real-time mapping, geo location notifications.


Distance learning, teacher messaging, online quizzes, parent portals.


Mobile banking, investing & payment gateways.

Website Design & Development Showcase

Town and SeaCustom auction website with bid notification, max bid, buyers premium and automatic payments
PAF Reading ProgrameCommerce Website with Custom Estimate and Purchase Order Generator
Hidden PondLuxury Resort Website with Accommodation Booking
Linhart NYCCustom Shopify eCommerce Website With Product Builder
Myx KitchenFast-Casual eCommerce Website + Mobile Ordering Application
Independent HomeLead Generation Website with Salesforce syncing
Chamber of CommerceMember Directory, Calendar, Profiles, Online Payments & Advertising
Greenwich Film FestivalEvent Listing with Tickets, Member-Only Access & Video Streaming
McArdle’s Floral DesigneCommerce Website with Custom Delivery Options & POS Integration
The Grand HotelLuxury Hotel with Accommodation Booking
Orthopaedic SummitConference Website with Registration, Scheduling, Faculty Assignments and Break-Out Sessions
The Local VaultMulti-Seller Marketplace -Commission, Make-an-Offer, Shipping & More
Lauren Walsh InteriorsInterior design portfolio website with high-res image galleries
Greenwich Point DermatologyProfessional business website with staff profiles, blog and online appointment requests
Greenwich EMSFirst responder website with Learning Management System, class booking and training.

Additional Services

Web Based Software

Custom cloud-based web applications to solve complicated business challenges using cutting-edge technology. We streamline workflows and make businesses more efficient, from product ideation and concept development to system rollout.

Mobile App Development

We develop native mobile applications for iOS & Android as well as hybrid apps to produce stunning mobile platforms for your customers and increase ROI. We work on transforming your idea into an innovative and secure mobile application.

Southern Maine Website Design & Development

Have a project or partnership in mind? Contact us today for a free consultation.