WordPress Development
WordPress development for complex organizations.
Cass & York builds and maintains WordPress platforms with custom functionality, integrations, structured content, directories, search, data workflows, and administrative tools.
We work where WordPress is part of a larger digital system—not just a publishing layer.
Why complexity matters
WordPress projects get complicated quickly.
A straightforward marketing site is one thing.
A platform with thousands of pages, multiple content types, CRM integration, memberships, search, maps, user accounts, data imports, internal workflows, and custom administrative tools is something else.
Our experience includes custom plugins and themes, REST APIs, directories, search, map interfaces, synchronization, import and export tooling, ecommerce, and external-system integrations.
Capabilities
What we handle
Custom engineering for platforms whose requirements extend well beyond installing and configuring plugins.
01
Custom WordPress Development
Functionality built around the requirements of the organization rather than forcing every process into existing plugins.
- +Custom plugins and themes
- +Post types and taxonomies
- +Administrative tools
- +Business rules and workflows
- +Custom REST API endpoints
- +User and account functionality
- +Internal dashboards
- +File and document workflows
02
Integrations
Reliable data exchange between WordPress and the systems that run the wider organization.
- +CRM and marketing platforms
- +Payment and membership systems
- +External APIs
- +Internal databases
- +Ecommerce systems
- +Maps and geolocation
- +Custom backend applications
- +Sync monitoring and controls
03
Directories, Search & Data Platforms
WordPress-based discovery platforms for large, structured datasets and public-facing records.
- +Provider and member directories
- +Location and fuzzy search
- +Service and category filters
- +Map-based discovery
- +Structured profile pages
- +Taxonomy-driven navigation
- +Search analytics
- +External API-backed records
04
Content Migration & Modernization
Migration and modernization for platforms that have become difficult to maintain, slow to extend, or dependent on fragile plugin combinations.
- +Large page inventories
- +Content restructuring
- +URL and redirect mapping
- +Media libraries
- +Custom fields and taxonomies
- +Structured data
- +Legacy plugins
- +Search, forms, and integrations
05
Membership, Donations & Ecommerce
Transactional and member-driven capabilities that extend WordPress beyond publishing.
- +Membership registration
- +Member profiles
- +Subscription workflows
- +Donations and ecommerce
- +Orders and payments
- +Restricted content
- +Account management
- +CRM synchronization
06
Intranets & Internal Tools
Internal organizational workflows when WordPress is the right fit for the requirements.
- +Employee intranets
- +Internal resource libraries
- +Staff directories
- +Restricted-access areas
- +Internal forms
- +Searchable knowledge bases
- +Administrative workflows
- +Business-system integration
Selected work
Relevant WordPress work
Taste the Local Difference
Partner directory, maps, data synchronization, and publishing tools.
The WordPress platform supporting TLD's partner ecosystem included custom plugins, directory templates, REST endpoints, structured taxonomies, partner-data synchronization, maps, advertising tools, import/export workflows, and a custom theme.
Custom plugins · REST APIs · Directories · Maps · Data sync · Structured content · Import/export
View Project →CBHN
Provider directory connected to a custom backend API.
A WordPress directory experience connected to a Laravel API, supporting provider search across services, locations, specialties, and organizations, plus maps, bulk data workflows, API-driven records, and database optimization.
WordPress · API integration · Search · Provider directories · Maps · Data workflows · Performance
View Project →Broader enterprise experience
Shopify New York & Los Angeles
Enterprise application maintenance and integrations.
Cass & York maintained and extended established Next.js and Vercel applications and their connected integrations. This is included as broader enterprise delivery experience—not as a WordPress implementation or a claim that Cass & York built the original properties.
Delivery
The work around the work matters too.
Large WordPress initiatives succeed through disciplined planning, content operations, governance, testing, and handoff—not development alone.
Discovery and requirements
Stakeholders, content, integrations, user groups, workflows, constraints, and organizational requirements mapped before implementation.
Information architecture
Content, navigation, taxonomies, search, and structured records organized to remain usable as the platform grows.
Migration planning
Content inventories, migration rules, redirects, validation procedures, and QA established before production content moves.
Accessibility
Accessibility built into design and implementation, with dedicated specialists involved when formal auditing is required.
Security and permissions
Roles, authentication, administrative access, APIs, data handling, plugins, and infrastructure planned around risk.
Testing and launch
Critical workflows, integrations, forms, responsive behavior, content, permissions, redirects, and production configuration tested before launch.
Training and documentation
Practical documentation and staff training for the content and administrative workflows internal teams will own.
Platform fit
We help determine whether WordPress is the right platform.
WordPress works well when content management is central, internal teams need direct publishing control, structured editorial content is substantial, and custom functionality can coexist cleanly with the CMS.
- ✓Publishing is a major platform need
- ✓Staff must manage content directly
- ✓Structured content needs to scale
- ✓External systems must integrate
- ✓Existing workflows depend on WordPress
- ✓Custom functionality fits the CMS model
When a custom application or separate backend is the better choice, we say so before the project is committed to the wrong architecture.
Engagement types
How we work with WordPress teams
New Platform Builds
For organizations replacing an existing website, CMS, or fragmented collection of digital properties.
Discovery · UX/UI · Architecture · Development · Integrations · Migration · QA · Training · Launch
Redesigns & Modernization
Preserve valuable content and functionality while replacing the structure, design system, architecture, or technical foundation holding the platform back.
Custom Development & Integrations
Add plugins, CRM integrations, directories, APIs, search, member functionality, payment workflows, or internal tools to an established platform.
Ongoing Engineering & Maintenance
Dependable ownership covering feature development, dependency maintenance, integrations, performance, production issues, security, and technical planning.
Who we work with
WordPress for organizations with real operational complexity
Colleges and universities
Associations
Membership organizations
Nonprofits
Public-sector organizations
Healthcare and provider networks
Economic development organizations
Professional services organizations
Multi-location businesses
Organizations managing large directories
RFP support
Preparing an RFP or evaluating implementation partners?
We can review an existing RFP or requirements document and determine where our team is a strong fit for custom development, integrations, migration, structured content, search, and operational workflows.
Start a conversation
Planning a WordPress platform, redesign, or migration?
Tell us about the organization, current platform, systems involved, and what the new site needs to accomplish. You do not need every technical requirement worked out before starting.