Custom Website Integration Developers – API, CRM, Payment & More
Your website shouldn’t be a silo. Whether you’re capturing leads, selling products, or running complex operations—your website must talk to your tools, platforms, and systems.
At Ultimate Web Designs, we’re trusted custom website integration developers who turn disconnected systems into streamlined digital ecosystems. From custom APIs to CRMs and payments, we’ve delivered over 1000 integrations for businesses across New Zealand.
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Some of The Brands We Work With
We’re proud to partner with brands that trust us to elevate their digital presence. Here are just a few of the unique companies we work with
Expert Custom Website Integrations That Power Growth
What We Integrate With Your Website
CRM & Marketing Tools
HubSpot, Salesforce, Zoho, Mailchimp, ActiveCampaign
Lead form syncing, pipeline automation, user segmentation
Payment & Subscription Systems
Stripe, PayPal, Windcave (Payment Express), Square
One-time, recurring, and multi-currency payment setups
Secure tokenisation and custom checkout flows
Google Tools
Google Analytics 4 (GA4), Google Ads, Looker Studio
Custom tracking & event setup via GTM
CRM + Ads campaign syncing
Booking, Calendars & Forms
Calendly, SimplyBook, custom calendars
Gravity Forms, Contact Form 7, WPForms with API logic
Zapier, Make.com (Integromat) workflows
Shipping & Inventory
NZ Post, DHL, ShipStation, Starshipit
Live shipping rates and tracking
Stock sync between site and POS/ERP
Social & Ad Platforms
Facebook Pixel + Conversion API
Meta Leads to CRM sync
LinkedIn Lead Forms to website or email systems
Custom APIs, Built Right
We build robust custom API integrations from scratch—REST, GraphQL, and SOAP included. Whether you’re linking a third-party app, building a customer portal, or pulling live data from external sources, we develop clean, secure, scalable solutions.
Solving Real Business Problems
Leads not syncing between forms and CRM
Website contact form goes nowhere
Order, payment or stock data missing
Manual processes slowing you down
No visibility across marketing or operations
Fragmented customer data across platforms
We make those pain points disappear by integrating everything in one flow, customised to your unique workflow.
Why Work With Us?
1000+ integration projects delivered across NZ and AU
Custom-built logic—not just plugin stacking
Experience with WooCommerce, WordPress, Shopify, Laravel, Webflow, and more
Easy-to-understand approach with full documentation
Based in NZ, real-time communication and support
Trusted by businesses of all sizes—from startups to national brands
Platforms We Work With
WordPress, WooCommerce
Shopify, Webflow
Laravel, PHP, custom apps
Wix, Squarespace (via Zapier/API)
Node.js, React-based platforms
CRM & SaaS platforms
Get Started Today
Whether you’re automating leads, syncing products, processing payments, or creating smart user flows—our integration experts can make it happen.
Request a Quote Now Talk to an Integration Developer
