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SEO Delft

SEO Bureau in Delft for B2B Companies That Want to Be Found in Google and AI Search

Overflow is a B2B marketing agency based in Delft. We combine SEO, AI Search optimization and direct Webflow implementation to help ambitious B2B companies become easier to find, understand and choose.

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TRUSTED BY leading B2B companies
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Erasmus MC logo
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NedCargo logo
ENRX logo
Erasmus MC logo
Informer Group logo
Kioti logo
NedCargo logo
SEO agency in Delft

Not a Location Page. An SEO Agency Actually Based in Delft.

Search for an SEO agency in Delft and you will find plenty of pages written to rank for the city. That does not always mean the agency is actually here.

Overflow is based in Delft and works primarily with B2B marketing teams. SEO is part of a broader growth system: a strong B2B website, technically sound Webflow implementation, useful content and a clear information architecture that helps both Google and AI search engines understand your company.

What you get

SEO Built Around How B2B Buyers Search Today

We do not treat SEO as a list of isolated optimizations. We connect technical SEO, content, Webflow and AI Search visibility to the buyer journey, so your website can attract qualified demand and support the rest of your marketing.

Reach More Qualified Buyers

Align pages with the problems, solutions, requirements, and provider comparisons your best-fit accounts search for during evaluation.

Convert More Organic Visits

Match search intent with clear messaging, relevant proof, and purposeful next actions across priority landing pages.

Launch Campaigns Faster

Give marketers reusable page structures that support optimized launches without routine development queues or disconnected handoffs.

Build Durable Content Momentum

Organize topics, internal links, page templates, and CMS collections so each published page contributes to a connected body of expertise.

Protect Visibility During Site Changes

Plan redirects, metadata, content moves, and technical checks before migrations or major Webflow updates go live.

Make Better SEO Decisions

Prioritize work by buyer intent, business relevance, technical impact, and your team's capacity to maintain it.

Selected Work

B2B websites built for visibility, conversion and measurable growth

Migrating Nedcargo from WordPress to Webflow in 4 weeks

98+

Lighthouse Performance

4 Weeks

Development to launch

View case

Built to scale: how Aumatics turned its website into a growth engine

300%+

Marketing ROI

8+

New high ticket clients

Aumatics website homepage screenshot
View case

Turning a tax advisory website into an organic acquisition channel

165

#1 keyword rankings globally

23.7K

Unique visitors in the last 12 months

View case

From ASX Listing to $17.5M Raised: BlinkLab's New Investor Magnet

$17.5M

Funding raised

7 weeks

Build to launch

BlinkLab website homepage screenshot
View case

One group, multiple products: a Webflow platform built for international growth

95+

Performance Score

4 weeks

From kick-off to launch

Informer Group website homepage screenshot
View case

How Our SEO Process Works

We start with the search opportunity and technical foundation, then improve the pages, content and authority needed to compound visibility in Google and AI Search.

Week 1

Strategy & discovery

Before we touch any code, we audit your current website, map your content, and create a clear migration plan to ensure a smooth, predictable launch.

Outcomes

  • Clear website strategy
  • Validated site structure
  • Predictable launch plan
Week 2 & 3

Scalable Design System

We build a scalable design system in Figma, enabling your team to create new pages quickly while keeping every experience consistent with your brand.

Outcomes

  • Scalable Figma design system
  • Conversion-focused UX
  • Consistent brand experience
Week 4

Webflow Development

We transform your designs into a high-performance Webflow website with clean development, responsive layouts, custom interactions, and seamless integrations with your existing marketing stack.

Outcomes

  • Full Webflow Build
  • Custom animations
  • Marketing integrations
Week 5

Content Migration

We carefully migrate your content, preserve your SEO authority, implement redirects, optimize technical SEO, and ensure every page is transferred accurately to maximize visibility in both search engines and AI search.

Outcomes

  • SEO authority improved
  • AI-ready content structure
  • E-E-A-T optimization
Week 6

Quality & Assurance

We carefully migrate your content, preserve your SEO authority, implement redirects, optimize technical SEO, and ensure every page is transferred accurately to maximize visibility in both search engines and AI search.

Outcomes

  • Cross-browser testing
  • Manual QA
  • Consistent experience everywhere
Week 7

Handover to Marketing

We don't just hand over your website—we empower your marketing team to own it. With documentation, training, and ongoing support, your team can confidently manage and grow the site without relying on developers.

Outcomes

  • Live team training
  • Video tutorials
  • Documentation
SEO services

What We Can Improve for Your B2B Website

From technical SEO and keyword strategy to content, internal linking and AI Search optimization, strategy and implementation stay connected in one team.

Let’s Talk
Let’s Talk

Webflow SEO Audit And CMS Architecture

We audit your Collections and templates alongside the technical foundation, then restructure them for scalable, template-level optimization

Technical Webflow SEO Implementation

Overflow addresses indexation, redirects, canonicals, headings, structured data, performance issues, and template-level problems directly in Webflow.

SEO-Safe Migration And Technical SEO

We map every important URL with redirects and harden Core Web Vitals, so crawlers and buyers reach a fast, technically sound site.

On-Page And Content Optimization

We build connected pages around the questions buyers ask during research and comparison, written to be understood and cited by search engines and AI.

Authority And AEO Engineering

We strengthen your entities and topical authority with structured schema, so AI platforms can trust and recommend you. It follows our AI Search (AEO) playbook.

Reporting And Team Enablement

We track rankings and AI visibility, then train your team to run and grow the site independently after handover.

THE DIFFERENCE

Why Overflow Is Different From a Traditional SEO Bureau

We specialize in B2B marketing websites and Webflow, with AI Search as a core capability. That means SEO strategy does not stop in a slide deck: we can improve the actual website structure, CMS, pages and technical implementation directly.

The old way
Recommendations wait in a separate developer backlog
SEO reviews begin after new pages launch
Teams optimize only for traditional search rankings
Pages chase isolated keywords without buyer context
Agencies retain control of routine site updates
Activity reports separate tasks from business priorities
THE OVERFLOW way
Strategy and Webflow implementation move forward together
SEO requirements shape pages before development begins
Teams prepare content for Google and AI discovery
Pages connect topics across the buyer journey
Marketing teams publish with documented site governance
Prioritized roadmaps connect work to buyer needs

What our
clients say

Read what our clients say about the B2B marketing websites we've built to help them grow.

Explore our playbooks
Explore our playbooks

If your website has to convince more than one kind of stakeholder at once—investors, scientists, families, or otherwise—and getting that wrong carries real timing and funding consequences, this is the kind of problem we build for.

Portrait of Henk-Jan Boele
Henk-Jan Boele
CEO Blinklab

Overflow created the design for our new website. We are extremely happy with the quality. The value for money is excellent! They also genuinely think along with us, which meant we were almost completely taken care of throughout the process. Communication is excellent, and they keep their promises—something we cannot always say about other online marketing agencies. Highly recommended. We are fans!!

Portrait of Quinten van der Kraaij
Quinten van der Kraaij
Founder BeFesti

Professional and creative entrepreneurs. They think along with you, and I am pleased with our final result!

Portrait of Martijn Ramekers
Martijn Ramekers
CEO Heuvelgroup

The guys at Overflow built a beautiful website for Port Sight Tax in record time. Sleek visuals are combined with strategic analysis. I highly recommend them to anyone looking to improve their online presence!

Portrait of Andreas de Wit
Andreas de Wit
Founder Port Sight Tax

I am incredibly pleased with this wonderful collaboration with Niels and Jort. Communication was very smooth from the start. Niels and Jort are proactive, pay attention to every detail, and always go the extra mile. The result is a stylish website that not only looks beautiful but also truly fits my business. Highly, highly recommended!

Portrait of Tahmina Azizi
Tahmina Azizi
Founder The Legal Wave

Easy, fast & reliable guys. They know how it works and what you may expect from a B2B Marketing Agency. They restructured our website and dicussed openly our webflow (s) Highly recommended!!

Mark van Ommen
Commercial Director Nedcargo

We worked with Overflow to build our new website on Webflow, and the experience was excellent from start to finish. As a B2B Marketing Agency, they really took the time to understand our niche recruitment in the non-profit healthcare sector and translated that into a clean, professional site that actually reflects who we are.

Portrait of Karel Van Os
Karel Van Os
Founder Rekruitmentklub

Great experience working with Jort & Niels. They created our website for Modus Projects and we’re really happy with how it turned out. Besides the website, they also helped us with our branding, colours and other brand materials. Great guys and always happy to help. Would definitely recommend!

Portrait of Camiel Aardewerk
Camiel Aardewerk
Founder Modus Projects

In our search for a good BTB Marketing Agency, we came across Overflow. This is how you want to do business: 2 nice guys, clear processes, clarity on cost and timings upfront, and most important of all: creative and very professional websites in Webflow in return. Doing business becomes fun this way, and easy to do. No 'funnies' no surprises, but jointly working as one team on the future of our business! Go for it Niels and Jort! I wish you all the succes in your business!

Portrait of Peter Potters
Peter Potters
Chief Commercial Officer

If your website has to convince more than one kind of stakeholder at once—investors, scientists, families, or otherwise—and getting that wrong carries real timing and funding consequences, this is the kind of problem we build for.

Portrait of Henk-Jan Boele
Henk-Jan Boele
CEO Blinklab

Overflow created the design for our new website. We are extremely happy with the quality. The value for money is excellent! They also genuinely think along with us, which meant we were almost completely taken care of throughout the process. Communication is excellent, and they keep their promises—something we cannot always say about other online marketing agencies. Highly recommended. We are fans!!

Portrait of Quinten van der Kraaij
Quinten van der Kraaij
Founder BeFesti

Professional and creative entrepreneurs. They think along with you, and I am pleased with our final result!

Portrait of Martijn Ramekers
Martijn Ramekers
CEO Heuvelgroup

The guys at Overflow built a beautiful website for Port Sight Tax in record time. Sleek visuals are combined with strategic analysis. I highly recommend them to anyone looking to improve their online presence!

Portrait of Andreas de Wit
Andreas de Wit
Founder Port Sight Tax

I am incredibly pleased with this wonderful collaboration with Niels and Jort. Communication was very smooth from the start. Niels and Jort are proactive, pay attention to every detail, and always go the extra mile. The result is a stylish website that not only looks beautiful but also truly fits my business. Highly, highly recommended!

Portrait of Tahmina Azizi
Tahmina Azizi
Founder The Legal Wave

Easy, fast & reliable guys. They know how it works and what you may expect from a B2B Marketing Agency. They restructured our website and dicussed openly our webflow (s) Highly recommended!!

Mark van Ommen
Commercial Director Nedcargo

We worked with Overflow to build our new website on Webflow, and the experience was excellent from start to finish. As a B2B Marketing Agency, they really took the time to understand our niche recruitment in the non-profit healthcare sector and translated that into a clean, professional site that actually reflects who we are.

Portrait of Karel Van Os
Karel Van Os
Founder Rekruitmentklub

Great experience working with Jort & Niels. They created our website for Modus Projects and we’re really happy with how it turned out. Besides the website, they also helped us with our branding, colours and other brand materials. Great guys and always happy to help. Would definitely recommend!

Portrait of Camiel Aardewerk
Camiel Aardewerk
Founder Modus Projects

In our search for a good BTB Marketing Agency, we came across Overflow. This is how you want to do business: 2 nice guys, clear processes, clarity on cost and timings upfront, and most important of all: creative and very professional websites in Webflow in return. Doing business becomes fun this way, and easy to do. No 'funnies' no surprises, but jointly working as one team on the future of our business! Go for it Niels and Jort! I wish you all the succes in your business!

Portrait of Peter Potters
Peter Potters
Chief Commercial Officer

If your website has to convince more than one kind of stakeholder at once—investors, scientists, families, or otherwise—and getting that wrong carries real timing and funding consequences, this is the kind of problem we build for.

Portrait of Henk-Jan Boele
Henk-Jan Boele
CEO Blinklab

Overflow created the design for our new website. We are extremely happy with the quality. The value for money is excellent! They also genuinely think along with us, which meant we were almost completely taken care of throughout the process. Communication is excellent, and they keep their promises—something we cannot always say about other online marketing agencies. Highly recommended. We are fans!!

Portrait of Quinten van der Kraaij
Quinten van der Kraaij
Founder BeFesti

Professional and creative entrepreneurs. They think along with you, and I am pleased with our final result!

Portrait of Martijn Ramekers
Martijn Ramekers
CEO Heuvelgroup

The guys at Overflow built a beautiful website for Port Sight Tax in record time. Sleek visuals are combined with strategic analysis. I highly recommend them to anyone looking to improve their online presence!

Portrait of Andreas de Wit
Andreas de Wit
Founder Port Sight Tax

I am incredibly pleased with this wonderful collaboration with Niels and Jort. Communication was very smooth from the start. Niels and Jort are proactive, pay attention to every detail, and always go the extra mile. The result is a stylish website that not only looks beautiful but also truly fits my business. Highly, highly recommended!

Portrait of Tahmina Azizi
Tahmina Azizi
Founder The Legal Wave

Easy, fast & reliable guys. They know how it works and what you may expect from a B2B Marketing Agency. They restructured our website and dicussed openly our webflow (s) Highly recommended!!

Mark van Ommen
Commercial Director Nedcargo

We worked with Overflow to build our new website on Webflow, and the experience was excellent from start to finish. As a B2B Marketing Agency, they really took the time to understand our niche recruitment in the non-profit healthcare sector and translated that into a clean, professional site that actually reflects who we are.

Portrait of Karel Van Os
Karel Van Os
Founder Rekruitmentklub

Great experience working with Jort & Niels. They created our website for Modus Projects and we’re really happy with how it turned out. Besides the website, they also helped us with our branding, colours and other brand materials. Great guys and always happy to help. Would definitely recommend!

Portrait of Camiel Aardewerk
Camiel Aardewerk
Founder Modus Projects

In our search for a good BTB Marketing Agency, we came across Overflow. This is how you want to do business: 2 nice guys, clear processes, clarity on cost and timings upfront, and most important of all: creative and very professional websites in Webflow in return. Doing business becomes fun this way, and easy to do. No 'funnies' no surprises, but jointly working as one team on the future of our business! Go for it Niels and Jort! I wish you all the succes in your business!

Portrait of Peter Potters
Peter Potters
Chief Commercial Officer

If your website has to convince more than one kind of stakeholder at once—investors, scientists, families, or otherwise—and getting that wrong carries real timing and funding consequences, this is the kind of problem we build for.

Portrait of Henk-Jan Boele
Henk-Jan Boele
CEO Blinklab

Overflow created the design for our new website. We are extremely happy with the quality. The value for money is excellent! They also genuinely think along with us, which meant we were almost completely taken care of throughout the process. Communication is excellent, and they keep their promises—something we cannot always say about other online marketing agencies. Highly recommended. We are fans!!

Portrait of Quinten van der Kraaij
Quinten van der Kraaij
Founder BeFesti

Professional and creative entrepreneurs. They think along with you, and I am pleased with our final result!

Portrait of Martijn Ramekers
Martijn Ramekers
CEO Heuvelgroup

The guys at Overflow built a beautiful website for Port Sight Tax in record time. Sleek visuals are combined with strategic analysis. I highly recommend them to anyone looking to improve their online presence!

Portrait of Andreas de Wit
Andreas de Wit
Founder Port Sight Tax

I am incredibly pleased with this wonderful collaboration with Niels and Jort. Communication was very smooth from the start. Niels and Jort are proactive, pay attention to every detail, and always go the extra mile. The result is a stylish website that not only looks beautiful but also truly fits my business. Highly, highly recommended!

Portrait of Tahmina Azizi
Tahmina Azizi
Founder The Legal Wave

Easy, fast & reliable guys. They know how it works and what you may expect from a B2B Marketing Agency. They restructured our website and dicussed openly our webflow (s) Highly recommended!!

Mark van Ommen
Commercial Director Nedcargo

We worked with Overflow to build our new website on Webflow, and the experience was excellent from start to finish. As a B2B Marketing Agency, they really took the time to understand our niche recruitment in the non-profit healthcare sector and translated that into a clean, professional site that actually reflects who we are.

Portrait of Karel Van Os
Karel Van Os
Founder Rekruitmentklub

Great experience working with Jort & Niels. They created our website for Modus Projects and we’re really happy with how it turned out. Besides the website, they also helped us with our branding, colours and other brand materials. Great guys and always happy to help. Would definitely recommend!

Portrait of Camiel Aardewerk
Camiel Aardewerk
Founder Modus Projects

In our search for a good BTB Marketing Agency, we came across Overflow. This is how you want to do business: 2 nice guys, clear processes, clarity on cost and timings upfront, and most important of all: creative and very professional websites in Webflow in return. Doing business becomes fun this way, and easy to do. No 'funnies' no surprises, but jointly working as one team on the future of our business! Go for it Niels and Jort! I wish you all the succes in your business!

Portrait of Peter Potters
Peter Potters
Chief Commercial Officer

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investement

Built for every stage
of your growth

Every organization has a different starting point. Choose the option that matches your current stage and scales with your ambitions.

Assess

AI Visibility Benchmark

For companies that want to understand their current AI visibility before making larger investments.

Understand your AI visibility

Gain a clear picture of how AI platforms perceive your brand.

Identify your biggest opportunities

Prioritize the improvements with the highest potential impact.

Benchmark competitors

See where your competitors outperform you and where you can win.

WHAT'S INCLUDED

  • AI Visibility Audit
  • Competitor Benchmark
  • Prompt Research
  • Executive Roadmap

Investement

From €2.500

One-time assessment · 1–2 weeks

Engineer

AI Search Foundation

For organizations ready to improve their AI visibility through a focused implementation sprint.

Become AI-ready

Build the technical and content foundation AI systems can understand and trust.

Increase AI visibility

Implement the highest-impact improvements across your website and content.

Build long-term authority

Strengthen the signals that influence AI recommendations.

WHAT'S INCLUDED

  • Full Marketing Team Training
  • CRM & marketing integrations
  • Server-side tracking
  • WCAG 2.1 AA Compliance

Investement

From €5.900

One-time implementation sprin

Accelerate

Monthly Content Production

For companies that want to continuously grow their AI visibility and stay ahead of competitors.

Stay ahead of competitors

Support multiple teams, brands, languages and regional websites within one structured setup.

Grow your AI visibility

Create clear permissions and component guidelines.

Own your category

Build lasting authority that compounds over time.

WHAT'S INCLUDED

  • Monthly AI Visibility Reports
  • AI Recommendation Monitoring
  • Prompt Tracking & Testing
  • Continuous Content Optimizatione

Investement

From €1.750/mo

Monthly

Overflow thinking

Ideas on B2B growth, AI Search & Webflow

In case you're wondering..

Questions B2B Teams Ask Before Choosing Webflow SEO Services. Get clear answers about fit, deliverables, implementation, timing, platform capability, and Overflow's approach to search growth.

Talk To Us
Talk To Us

Webflow gives marketing teams control over their website while providing the flexibility, performance, and scalability growing B2B companies need.

They are designed for B2B founders and marketing teams that need stronger search visibility and faster publishing. They also support clearer buyer journeys with less reliance on developer queues or disconnected agency handoffs.

Yes, Webflow's official SEO guidance documents built-in tools for meta tags, structured data, and image alt text. SEO outcomes depend on strategy, content, technical implementation, and continued improvement.

Overflow can combine recommendations with direct Webflow implementation when that work is included in scope. This keeps strategic priorities connected to the technical changes required on the site.

Overflow can support content migration, CMS transition, URL mapping, redirects, and SEO protection when included in scope. The NedCargo Webflow case study documents these activities in a WordPress-to-Webflow migration.

Timing depends on your site's condition, competition, authority, content, and implementation pace. Overflow sets priorities and realistic expectations without promising a specific ranking or universal result date.