Custom Theme Development
Brand-true, high-performance custom WordPress themes, classic or block-based with theme.json, built for Core Web Vitals.
AI-optimized Core Web Vitals Custom ThemesBrainvire builds custom WordPress and WooCommerce sites: theme design, multisite and multilingual, integrations, migration, and SEO, with AI-driven personalization, search, and content. As a WordPress development company, we build custom WordPress websites and keep them fast, secure, and supported after launch.
Trusted by leading brands
/ Web platforms, on the record
Every figure below comes from a documented engagement. Every card is one client, on the record. The four are a custom WordPress affirmations platform, a sports portal rebuilt for real-time data, a media group’s website re-engineered off Drupal, and a local search directory portal.
Media · WordPress
[2M+]
Monthly visitors on a WordPress platform
A custom WordPress venture spread positive affirmations globally: 2M+ monthly visitors, 0.5M registered users, and 5K+ articles a month.
Read the case →
Media · WordPress
[28M]
Monthly users on the sports portal
We rebuilt a North American sports portal on WordPress with a customizable admin and real-time data, growing monthly users from 12M to 28M.
Read the case →
Media · Web
[8M+]
Users per month after re-engineering
A completely re-engineered website for a well-known media group noted a boost in viewers, reaching 8 million+ users per month.
Read the case →
Directory · Web
[96%]
Upsurge in revenues
An enhanced local search directory portal recorded a 96% upsurge in revenues after a rebuild focused on discovery and speed.
Read the case →
/ What we build
Eight WordPress practice areas under one engineering standard: custom themes to headless builds, AI wired into each. Each area is staffed by WordPress experts who also build custom plugins, Gutenberg blocks, and headless front ends.
Brand-true, high-performance custom WordPress themes, classic or block-based with theme.json, built for Core Web Vitals.
AI-optimized Core Web Vitals Custom ThemesWordPress-native commerce for content-led and D2C brands.
AI product-copy & catalog enrichment WooCommerceMultisite networks and multilingual sites managed from one backbone.
AI-assisted translation workflows Multisite · WPMLCRM, ERP, marketing, and payment systems wired into WordPress through the REST API and custom plugins, where off-the-shelf plugins fall short.
AI-assisted API integration IntegrationsClean migrations and replatforms from any content management system, with data integrity and SEO parity.
AI-mapped content migration Migration SpecialistsTechnical and on-page search engine optimization engineered into the build, not bolted on after.
AI keyword clustering & briefs Technical SEOWordPress maintenance services: managed hosting, core and plugin updates, security monitoring, and continuous performance optimization.
AI-triaged monitoring & alerts 24×7 Managed ServicesWCAG and ADA compliance, data privacy, and accessibility audits.
AI-assisted accessibility audits WCAG · ADA/ AI, built in
Gutenberg-native assistants that draft, tag, and repurpose posts while editors keep full control of tone.
Vector search that understands intent, so visitors find the right page even when they don't know the exact words.
Autonomous agents that handle scheduling, redirects, and media optimization behind every publish.
Automated visual-regression, plugin-vulnerability scanning, and anomaly detection wired into delivery.
/ Accelerators
Each accelerator packages the playbooks, pre-built components, and AI tooling from dozens of prior WordPress programs: the riskiest step of your roadmap is already two-thirds built.
Move onto WordPress from any CMS with AI-mapped content migration, redirect mapping, and SEO equity preserved.
A performance-tuned theme foundation with AI performance budgeting to pass Core Web Vitals from day one.
A pre-built WooCommerce foundation: catalog, checkout, and AI product-copy generation wired in.
AI-assisted accessibility auditing and remediation to ship WCAG- and ADA-compliant from launch.
/ Industries
Each vertical has dedicated teams, pre-built data models, and reference architectures shaped by hundreds of engagements.
Omnichannel platforms with unified inventory, AI merchandising, and storefronts that learn from every order.
See Retail & eCommerce work →HIPAA-conscious patient platforms, operational AI, and connected systems for providers and pharmacies.
See Healthcare work →Secure lending, payments, and decision-intelligence platforms built for audits, uptime, and scale.
See Finance & Fintech work →Dealer commerce, VIN & fitment catalogs, and service platforms connected to live inventory nationwide.
See Automotive work →PropTech platforms, CRM-ERP integration, and AI valuation models for developers and brokerages.
See Real Estate work →Route intelligence, warehouse automation, and end-to-end shipment visibility on one operational spine.
See Logistics work →Content platforms, subscription commerce, and audience analytics that turn viewers into recurring revenue.
See Media work →Learning platforms, enrollment systems, and AI tutoring experiences for institutions and edtech firms.
See Education work →/ In their words
Brainvire demonstrated reliability, a commitment to delivery, and helped us maintain momentum on critical roadmap items.
/ Recognition
Top eCommerce Developers
2025The Americas’ Fastest-Growing Companies
2025Fastest-growing private companies in America
2024North America’s fastest-growing tech companies
/ How it runs
Six steps from the first call to a site that ships, with a checkpoint at the end of each.
A working session maps your business goals, content model, integrations, and the pages that earn traffic today, so scope is written down before anything is estimated.
AI-mapped content migration DiscoveryWe choose the theme approach, the plugin stack, and whether the front end stays in WordPress or runs headless over the REST API, and we record why.
AI-assisted API integration ArchitectureDesigns become a custom theme and Gutenberg blocks your editors can reuse, built against a Core Web Vitals budget from the first sprint.
AI-optimized Core Web Vitals BuildCustom plugins carry the business logic existing plugins cannot, and connect WordPress to your CRM, ERP, and payment systems. Core files stay untouched.
AI-assisted API integration IntegrationsAccessibility audits, plugin-vulnerability scanning, and performance tests run before launch, alongside SEO checks and redirect mapping.
AI-assisted accessibility audits AssuranceAfter go-live: core and plugin updates, security monitoring, backups, and performance optimization, under a maintenance plan or alongside your in-house team.
AI-triaged monitoring & alerts Support/ Questions, answered
WordPress website development services cover the full life of a site: discovery, custom theme development, WordPress plugin development, integrations, migration, search engine optimization, accessibility, launch, and ongoing website maintenance. We can create websites from scratch or take on one piece of work on an existing website.
Because one engineering standard runs across every WordPress build, from a custom theme to a headless front end, and our WordPress web development services sit beside a wider practice in commerce, data, and AI. Brainvire brings 14+ years of experience, 1,000+ Brainers, 10+ global offices, and a 95% client retention rate.
Look at documented work rather than logos, ask who will write the code, and ask how custom code is kept out of WordPress core so updates stay safe. Ask for technical expertise you can verify: a site the company built, its WordPress development process step by step, and its maintenance terms in writing.
Directories such as Clutch publish rankings of top WordPress development companies, and they make a sensible starting shortlist. We would rather not rank our competitors. The better test is whether a company can show WordPress work like yours, name the people on your project, and support the site after launch.
Yes. We develop custom WordPress plugins when a feature needs business logic, data, or an integration that existing plugins cannot handle cleanly. Custom plugin development also keeps that logic out of the theme, so a later redesign is far less likely to break it.
Use a well-maintained plugin when it does the job without heavy workarounds; the WordPress.org directory lists over 73,000 free plugins. Choose custom development when the feature is core to your business, when several plugins would be stacked to fake one workflow, or when performance and security review matter more than speed to launch.
Yes. WordPress theme development here means a custom theme built for your brand and content model, not a purchased theme with overrides. We build classic themes and block themes. In a block theme, global settings and styles live in the theme.json file, so editors can adjust design in the Site Editor within the limits you set. A custom theme also avoids the bloat of general-purpose marketplace themes and is built mobile-responsive from the first template.
Headless WordPress keeps WordPress as the content management system and sends content to a separate front end, an app, or other channels. The WordPress REST API makes that possible: it lets applications interact with a WordPress site by sending and receiving data as JSON, and it is the foundation of the block editor. It also suits mobile solutions where a WordPress site and an app share content, and our mobile app development practice can build the app side.
Yes. The block editor uses a modular system of blocks to compose and format content, and custom blocks give editors reusable layouts, such as heroes, feature grids, or product callouts, without touching code. We build them to the conventions in the WordPress Block Editor Handbook.
Yes. Integrations run through the WordPress REST API, custom plugins, or middleware, and connect forms, users, orders, and content to CRM, ERP, marketing automation, and payment systems. Backend development lives in plugins, so the theme stays focused on presentation.
WordPress security starts in the build: least-privilege user roles, vetted plugins, hardened configuration, a web application firewall, and HTTPS, which WordPress.org lists among its hosting recommendations. After launch, a secure WordPress site depends on prompt core, theme, and plugin updates, malware scanning, monitoring, and tested backups, which our maintenance services cover.
Core, theme, and plugin updates tested on staging before they reach production, uptime and security monitoring, backups, performance checks, and small content or feature changes. These WordPress services can run as a monthly plan with us or be shared with your in-house team.
Performance optimization starts with the theme: lean templates, optimized images, caching, and a performance budget checked against Core Web Vitals. On an existing site we look at slow database queries, database bloat, and heavy themes or plugins first, because they are frequent causes of a slow WordPress site.
Yes. Our WordPress migration services move content, media, users, and URLs from another content management system, such as Joomla or Drupal, or from an older WordPress build, with redirect mapping, SEO checks, and a cutover planned to keep downtime to a minimum. The migration accelerator above plans on 6-10 weeks for that route.
Yes. A website redesign can keep your content and URLs while replacing the theme, the information architecture, and the page templates. Design comes first: web design, prototypes, and a component library, aimed at faster pages and clearer paths to what visitors came to do.
Yes. WordPress SEO services are part of the build: clean URLs, schema markup, internal linking, redirect mapping on migrations, and page speed. Content strategy and wider digital marketing sit with our marketing practice when you need them.
Yes, through WooCommerce, which adds a store to WordPress and suits brands where content drives customer engagement and sales. For ecommerce development at larger catalog scale, we also build on Adobe Commerce and Shopify, and we will tell you which platform fits.
Yes. We can own the whole build, or add WordPress specialists to your in-house team for WordPress web development work such as a theme, a plugin, or a migration. Code reviews and documentation mean your people keep the technical knowledge after we step back.
Yes. Consulting services cover platform choice, architecture reviews, audits of an existing website, and roadmaps for teams deciding whether WordPress, a headless build, or custom software fits best.
It depends on scope. A site on a customized theme costs far less than custom websites with a headless front end, custom plugins, and several integrations. We price website development after a working session that fixes the templates, integrations, and migration volume, and we put the estimate in writing before work starts.
Timelines follow scope. Our accelerators set the pace on common routes: 4-8 weeks for the Core Web Vitals theme foundation, 4-6 weeks for the WooCommerce foundation, and 6-10 weeks for a migration and replatform, as the tiles above show.
For most content-led websites, yes. WordPress.org describes WordPress as the platform of choice for over 43% of all sites across the web, and the project keeps shipping releases: WordPress 7.1 focused on easier styling and editing. It is a weaker fit for apps that are mostly custom logic with little content.
WordPress started in 2003 when Mike Little and Matt Mullenweg created a fork of b2/cafelog. Today it is built on PHP and MariaDB and licensed under the GPLv2, and it is developed as an open source project by contributors around the world.
The software is free and open source, released under the GPLv2 (or later), which gives anyone the freedom to run, study, change, and redistribute it. Plugins and themes derived from WordPress code inherit the GPL license. What costs money is the work: design, custom development, hosting, premium plugins, and maintenance.
WordPress.org recommends PHP version 8.3 or greater, MariaDB version 10.11 or greater or MySQL version 8.0 or greater, and HTTPS support, with Apache or Nginx as the web server. We size managed hosting to your traffic and set up staging, caching, and backups around it.
WordPress's own Plugin Developer Handbook puts it plainly: don't touch WordPress core, because WordPress overwrites core files with each update. Anything you add or change belongs in a plugin or theme, which is how we build, so updates stay routine rather than risky.
Multisite lets you create several WordPress sites managed within one installation. WordPress's documentation gives the example of business sites that share resources such as the theme or plugins but carry different content for their regions, which fits brands with regional or product sites run by one team.
Yes. WordPress publishes coding standards for PHP, HTML, CSS, JavaScript, and accessibility, and says they help avoid common coding errors, improve the readability of code, and simplify modification. Custom themes and plugins written to them are easier for your team, or the next developer, to maintain.
WCAG 2.2 at level AA, the level WordPress expects of code in its own ecosystem, including core and official plugins. Our accessibility audits and the ADA and accessibility accelerator above check templates, blocks, and content against it before launch.
Yes, when the backend is structured for it. Object and page caching, a CDN, a tuned database, and code that avoids heavy queries let scalable WordPress sites grow without a complete rebuild, and Multisite adds new sites to the same installation. The right WordPress solutions depend on your traffic patterns, so we size them in discovery.
You should. Keep the domain, hosting, and WordPress admin accounts in your company's name, and ask for custom theme and plugin code in a repository you control, so you can change teams without rebuilding.
/ Next step
A 30-minute working session with a Brainvire architect: your WordPress platform, migration path, and AI roadmap, on one page. Bring your existing website and business goals, and we will agree on the plan from there.
Book a Working Session →Cookies on this site
Essential cookies are always on. They keep the site secure and make forms work.
We also use Google Analytics and Microsoft Clarity to see how the site is used. We only turn these on if you accept.