Book Meeting

Paid Media & Performance

ROI-driven search, social and display for B2B. Built to lower CPL in every market you sell into.

International PPC Google Ads Management LinkedIn Ads Facebook Ads Retargeting

Organic Growth & SEO

Multilingual SEO, content and inbound that compound. Rank, stay ranked and convert.

International SEO Free SEO Audit Inbound Marketing B2B Copywriting

Demand Generation

Top-of-funnel programs that create pipeline before the RFP. For buying committees, measured in SQLs.

B2B Demand Gen Lead Magnets Growth Marketing

AI Marketing

Be the answer when buyers ask AI. Visibility in ChatGPT, Gemini and AI Overviews, measured and managed.

AI & LLM Visibility Answer Engine Optimization Multilingual AI Search

WordPress Development

Fast, secure, multilingual WordPress. Engineered for Core Web Vitals, SEO and conversion.

Web Design Core Web Vitals WPML Multilingual
WordPress Development Agency · Barcelona · San Francisco

B2B WordPress Web Development Built For Speed

A WordPress agency for SaaS, tech and enterprise brands that treat their website as a growth engine, not a brochure. Fast, secure, multilingual WordPress, engineered for Core Web Vitals, technical SEO and pipeline. Design, build and ongoing optimization from senior specialists.

  • Core Web Vitals-first builds that pass LCP, INP & CLS
  • Multilingual WordPress with WPML & international SEO built in
  • Brand-owned custom themes, no bloated page-builder debt
★★★★★Verified client review Core Web Vitals green, 200% organic growth Senior Manager, Digital Marketing · Legal Software
90+PageSpeed Target
5Languages, Native-Level
18+ yrsBuilding For The Web
Book a 30-min Discovery Call

Free call with a senior WordPress specialist, no junior layers.

Trusted by international B2B brands
Workday CLM Babbel National Instruments WinZip Bitrix24 Fortra
What We Do

WordPress Development Agency Services

Everything a B2B SaaS or tech company needs to design, build, migrate and scale a WordPress site that ranks, loads fast and converts: in every market you sell into.

Custom Theme Development

Hand-built, brand-owned WordPress themes: lean, semantic and fast. No bloated page-builder debt, no template you have to fight to customise.

WordPress Web Design

Conversion-focused UX and UI design for B2B: clear messaging hierarchy, trust signals and CTAs mapped to how buying committees actually decide.

Core Web Vitals & Speed

Performance engineering (caching, asset optimization, image pipelines and a lean plugin stack) so you pass LCP, INP and CLS and rank higher.

Multilingual (WPML)

Multilingual WordPress done right. WPML architecture, hreflang, localized URLs and native-level content across five languages, SEO-safe from day one.

Technical SEO Builds

Clean markup, schema, XML sitemaps, crawl-efficient architecture and fast rendering. WordPress engineered so SEO and content compound.

Migrations & Replatforming

Move to WordPress (or off a fragile legacy build) with zero-loss content migration, preserved rankings, redirects and no downtime.

Security & Maintenance

Hardened WordPress, managed updates, backups, uptime monitoring and a support retainer, so your site stays fast, safe and current.

Headless & Integrations

Headless WordPress, CRM and marketing-automation integrations (HubSpot, Marketo, Salesforce) and custom API work when the roadmap needs it.

Conversion Rate Optimization

We treat the build as a CRO asset, landing pages, forms and UX tuned with data so more of your hard-won traffic becomes pipeline.

CRO
How We Work

The COSEOM WordPress Delivery Method

A transparent, five-step method that de-risks the build and gets you a site that ranks and converts, not a six-month mystery.

  1. 01

    Discover & Audit

    We map your markets, buyers, current performance and technical debt (Core Web Vitals, SEO, analytics and content gaps) into a clear scope.

  2. 02

    Architect & Design

    Information architecture, wireframes and conversion-focused UI. We design the messaging hierarchy around how B2B committees actually buy.

  3. 03

    Build & Localize

    Clean custom theme, WPML multilingual setup, schema and integrations, engineered for speed and international SEO from the first commit.

  4. 04

    QA & Launch

    Cross-device QA, accessibility, Core Web Vitals validation, redirects and a zero-downtime launch with rankings preserved.

  5. 05

    Optimize & Grow

    Post-launch CRO, performance monitoring and content: the site keeps improving, feeding your SEO and paid channels.

Proof

Brands That Build With Us

From scaling SaaS startups to enterprises across the US, EMEA and APAC: companies trust COSEOM to design, build and grow their WordPress presence.

Workday CLM
Talentful
Seekr
Bitrix24
Conifers AI
Babbel
Glia
Daymark
Kusari
Torq
National Instruments
WinZip
90+
Target PageSpeed Score
5
Languages, Native-Level
3
Continents Served
18+ yrs
Building For The Web
“
Highly professional, hands-on, and direct in their approach.
Senior Manager, Digital Marketing · Enterprise Legal Software
Ship Faster

Is your WordPress site holding growth back?

Slow pages, a fragile theme, no real multilingual setup and SEO that never compounds. We fix the foundation and turn your site into a channel, across every market you sell into.

Get a Free Site Audit
  • Core Web Vitals audit. LCP, INP and CLS, with a prioritized fix list.
  • Custom, brand-owned theme, no page-builder lock-in or bloat.
  • WPML multilingual architecture with hreflang and international SEO.
  • CRM & automation integrations. HubSpot, Marketo, Salesforce.
  • Hardened security & maintenance retainer: updates, backups, monitoring.
Where We Work

Your WordPress Agency in Barcelona, San Francisco & Beyond

A WordPress development agency with roots in Spain and the US, building and optimizing sites for B2B brands across Europe, North America and APAC.

WordPress Agency Barcelona

Local, senior WordPress development and web design for Spanish and international B2B brands: multilingual and SEO-first.

WordPress Agency San Francisco

US-hours WordPress development for SaaS and tech in the Bay Area and across North America, aligned with your GTM.

Webdesign Agency Spain & Germany

Native Spanish and German web design and development: build once, launch in every market with WPML.

WordPress Designer for B2B

A WordPress designer and developer team that speaks pipeline. Every design decision is tied to leads.

Answers

WordPress Development FAQ

How much does a B2B WordPress website cost?

Most B2B WordPress projects range from a focused marketing site to a full multilingual platform. Pricing depends on page count, languages, integrations and whether design is included. We scope a fixed quote after a free 30-minute discovery call, no surprises.

Do you build multilingual WordPress sites?

Yes. It's a core specialty. We build multilingual WordPress with WPML, native-level content in English, Spanish, German, Portuguese and Thai, and hreflang plus international SEO built in from the start.

Can you improve our Core Web Vitals and page speed?

Yes. We engineer WordPress for Core Web Vitals (clean themes, optimized assets, caching and a lean plugin stack) so pages pass Google's LCP, INP and CLS thresholds and both rank and convert better.

Do you work with our existing theme or build custom?

Both. We audit and optimize existing WordPress sites, or design and build a custom, brand-owned theme when a template is holding growth back. Everything is handed off clean, documented and easy for your team to run.

Can you integrate WordPress with our CRM and marketing stack?

Yes. HubSpot, Marketo, Salesforce and custom API integrations, plus analytics and lead tracking so you can see which pages generate MQLs and SQLs.

Get in Touch

Build a WordPress site that works as hard as your team

Thank you for your interest in our WordPress development services. Tell us about your site and your markets, and we’ll come back within one working day with a 30-minute discovery slot.

Europe / Barcelona

Plaça Universitat 3, Planta 6, 08007 Barcelona · +34 932710218

USA / San Francisco

1390 Market Street, San Francisco, California, 94102 · +1 415 7429818

APAC / Bangkok

CRC-Tower, 87, 2 Wireless Rd, Bangkok 10330, Thailand · +66 2 105 5799

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