Consulting & B2B Services

Position your firm as the reference in your sector.

Independent developer in Brussels, I build authority websites for consulting firms and B2B services that want to generate qualified mandates, not just visibility. Thought leadership content, SEO on expertise keywords, CRM integration.

5.0

par 22 clients

Your expertise is real. Your site doesn't show it.

A showcase site that doesn't differentiate you from anyone.

A showcase site that doesn't differentiate you from anyone.

Your firm has a sharp approach, recognised consultants, measurable results for your clients. But your site looks like any competitor's. A prospect comparing you online can't see why they should call you rather than someone else.

Zero thought leadership content strategy.

Zero thought leadership content strategy.

Your consultants produce analyses, frameworks, strategic recommendations every week. This expertise stays locked in slides and internal meetings. Without a structured content architecture, your competitors occupy the SEO ground and capture digital credibility in your place.

Invisible on Google for your expertise keywords.

Invisible on Google for your expertise keywords.

Your prospects search 'digital transformation consulting firm Brussels' or 'SME strategy consultant Belgium'. Your site doesn't appear. Without technical SEO and GEO integrated from the design phase, you don't rank — and AI Overviews don't cite you either.

LinkedIn as your only channel — and its reach is collapsing.

LinkedIn as your only channel — and its reach is collapsing.

You publish on LinkedIn because that's where your prospects are. Except organic reach drops every quarter, the algorithm makes you dependent and a post has a 48-hour lifespan. You're building on land you don't own. A well-ranked article on your site generates leads for months.

You know your site isn't working for you. Let's see what it could do.

A 30-minute call to analyse your online presence, identify the expertise keywords your firm should rank for, and understand what your competitors are doing better than you digitally. You leave with an actionable diagnosis, even if you don't sign.

A site that generates mandates, not just impressions.

An authority site with blog and content strategy.

An authority site with blog and content strategy.

I design editorial sites structured in thematic silos: pillar articles, case studies, sector analyses. Each piece of content ranks on your expertise keywords and demonstrates your depth. Your site becomes the public proof of what your consultants can do.

FR | EN
SEO and GEO on expertise keywords.

SEO and GEO on expertise keywords.

Technical SEO and GEO are integrated from the first commit: silo architecture, structured markup, optimisation for AI Overviews. Your prospects find you on Google, ChatGPT and Perplexity when they search for a firm for their specific challenge.

CRM integration for lead nurturing.

CRM integration for lead nurturing.

I connect your site to your CRM (HubSpot, Salesforce, Pipedrive…). Every white paper download, every contact request feeds directly into your prospecting pipelines. AI nurturing automations are integrated from the design phase.

Client case showcase that converts.

Client case showcase that converts.

I build structured client case pages: context, approach, quantified results. SEO-optimised and designed with UX/UI that highlights your real impact. A prospect who reads three of your case studies is already half convinced before the first call.

+200%
3x
-40%

Three approaches for your site. Only one builds a lasting asset.

Not recommended
WordPress + SEO plugin: easy to launch, impossible to evolve.

WordPress + SEO plugin: easy to launch, impossible to evolve.

A premium theme, Yoast SEO, a few service pages. It's quick to put online, but maintenance piles up (updates, security vulnerabilities, plugins breaking each other). Above all: without content architecture planned upfront, your blog ranks for nothing and generates zero leads.

Not recommended
Branding agency: a beautiful site with no acquisition strategy.

Branding agency: a beautiful site with no acquisition strategy.

€20 to €40K, 4 to 6 months of process, a site that looks impressive visually. But it's a showcase, not a mandate-generating machine. No content strategy, no SEO architecture, no CRM integration. You're paying for the design of a digital business card — not an acquisition channel.

Recommended
Custom authority site: content, SEO and CRM built into the code.

Custom authority site: content, SEO and CRM built into the code.

Content architecture in thematic silos, native technical SEO, markup for AI citations, direct CRM integration. Your site works like an extra consultant: it publishes, it ranks, it captures qualified leads — 24 hours a day. And the code belongs to you.

Funnel de thought leadership Illustration montrant comment le contenu d'expertise génère des mandats qualifiés via le SEO et les citations IA. Contenu d'expertise Analyses Études de cas Articles SEO + Citations IA Perplexity Cité par ChatGPT #1 Google Pipeline CRM Mandat qualifié Demande de RDV Téléchargement étude 24/7 — automatique

The mechanism

How your expertise content generates mandates continuously.

Your consultants already produce quality content — analyses, experience feedback, methodologies. I structure this knowledge into an optimised content architecture: each article targets a specific search intent, each case study demonstrates your ability to solve a concrete problem.

Result: your pages climb Google rankings and are cited by ChatGPT and Perplexity. Decision-makers searching for a firm for their challenge land on your content, review your case studies, and arrive in your CRM with clear context. You no longer cold-prospect — mandates come to you.

How it works in practice.

No 40-page specification document. We move fast, you validate at every step.
01

Week 0

Scoping call

25 min to understand your practices, your positioning and your mandate generation goals. I also review your current site, your existing content and your analytics. You leave with a clear diagnosis, even if you don't sign.
02

Week 1–2

Mockups and validation

Custom wireframes and mockups. Content architecture, site structure and SEO silo strategy. You see and approve before a single line of code is written.
03

Week 2–6

Development and SEO

Astro site, built-in technical SEO, integrations (CRM, analytics, automations). You get a real-time preview. For content: I can write, optimise what you provide, or work with your marketing team.
04

Week 4–8

Launch and follow-up

Go live, tracking configured, 3 months of support included. Then: content + evolution retainer (from €500/month), or ad hoc interventions. You choose the model that suits you.
Coddy: a scalable content architecture across 9 markets.

Proof by example

Coddy: a scalable content architecture across 9 markets.

Coddy is my startup. Urban escape games for individuals and companies across 9 European countries. I designed a centralised but locally adaptable content architecture — exactly like a consulting firm that deploys its expertise across multiple practices or geographies.

Each market has its own optimised pages, localised content, and independent SEO strategy, while maintaining global consistency. Result: multiplied organic visibility, hundreds of thousands of players served and sub-1-second load times. That's the same scalable architecture logic I apply to multi-practice firms.

See the Coddy case

Who should build your firm's website?

Who works on your project

Numinam
1 senior lead + specialists (design, content) brought in as needed
Traditional agency
Project manager + juniors, you don't choose who codes
Marketplace freelancer
1 solo freelancer, no backup possible

Delivery time

Numinam
2 to 8 weeks
Traditional agency
8 to 16 weeks
Marketplace freelancer
Variable, often 2x the estimate

Thought leadership content strategy

Numinam
SEO silo architecture + writing available
Traditional agency
Variable, often not their specialty
Marketplace freelancer
Rarely offered

SEO and GEO

Numinam
Native + optimised for AI answers
Traditional agency
Paid option
Marketplace freelancer
Basic or absent

CRM integration

Numinam
HubSpot, Salesforce, Pipedrive from the start
Traditional agency
Optional, often subcontracted
Marketplace freelancer
Rarely offered

After launch

Numinam
Retainer or ad hoc, you choose the model
Traditional agency
Maintenance billed, content extra
Marketplace freelancer
You manage alone

Code ownership

Numinam
100% yours, hostable anywhere
Traditional agency
Depends on contract
Marketplace freelancer
100% yours

No surprise invoices. Here's what it costs.

The price depends on the number of pages, the level of design customisation and technical integrations. A content management plan is available from €150/month: you send, I publish, your site stays alive without you touching it.

Landing Page
€2,400
1 page. Capture prospects for a specific offer, validate a positioning or support a campaign.
Request an audit
1 conversion-optimised page
Bespoke responsive design
PageSpeed score 95+
Technical SEO integrated
Contact form
Delivered in 2 weeks
Optional monthly content plan
Marketing Site
€5,200
5 to 10 pages. Your complete professional website with a blog to convert visitors and start ranking on Google.
Discuss your project
5 to 10 optimised pages
SEO blog included
Bespoke responsive design
PageSpeed score 95+
Technical SEO integrated
Delivered in 4 to 5 weeks
Optional monthly content plan
Most popular
Editorial Site
€7,900
10 to 25 pages. Become the reference in your sector. Advanced SEO/GEO strategy, multilingual support and business integrations.
Schedule a call
10 to 25 pages with topic cluster architecture
Advanced SEO/GEO strategy
Multilingual (EN/FR/NL)
CRM and analytics integration
PageSpeed score 95+
Delivered in 6 to 8 weeks
Optional monthly content plan

Prefer to manage your own content?

What clients have to say.

Sébastien is always attentive and understood our needs perfectly when it came to redesigning our website! The new site looks great and was delivered on time. We've already gained a few customers thanks to the improved SEO of the new site 🤩
Didier Boulvin

Didier Boulvin

C3PO • Coddy

Numinam's contribution to the development of our App has been significant in its success with our B2C and B2B customers.
Stephane Draux

Stephane Draux

Founder • Spengo

Numinam (One More Pixel) is doing a fantastic job for Euronet. They’ve started the mission in saving our web-site from a cyber-attack. We had lost a lot of information and they had to rebuild our web-site. They had to recover the data left on our…
Valérie Van Belle.

Valérie Van Belle.

Managing director • Euronet

Sebastien helped lifting Zetes' digital activities to a higher level, [...], a project successfully managed from design to development.
Joke Aerts

Joke Aerts

Marketing Director • Zetes

Numinam's technical and design vision has enabled us to improve our lead generation flows. A big step forward.
Jérôme Van De Sande

Jérôme Van De Sande

Product & Data Leader • Heat Me

Numinam has completely modernized our website. The design is clearer, more credible, and our visitors understand what we do. A real leap in quality. Also worth noting is the excellent collaboration between Numinam and our development agency. Thank…
Olivier Lafosse

Olivier Lafosse

Founder & CEO • Heat Me

It was a real pleasure to do business with Sebastien. He did a great job and transform our inefficient and boring website to a nice one that generate leads. Moreover, Sebastien is a patient and reliable partner and he's always ready to help.
Shirley Boterdael

Shirley Boterdael

Marketing & Com. Manager • Highcodata

Frequently asked questions

What's the budget for a consulting firm website?

A website for a consulting firm at Numinam starts from €5,200 for a full marketing site (up to 10 pages, SEO blog included). An editorial site with content strategy, thematic silo architecture and CRM integrations starts at €7,900. The price depends on scope: number of pages, content strategy, integrations (CRM, forms, analytics), volume of target keywords. A 30-minute call scopes the project and provides a precise estimate. No surprise quotes: the price is fixed before the first commit.

How do you build a content and thought leadership strategy for a consulting firm?

A consulting firm creates value through its expertise — but that expertise remains invisible if it isn't published and structured to be found. I build content architectures in thematic silos: each practice area (strategy, digital transformation, finance, HR…) has its own content pillar with supporting articles. This structure lets the firm rank on expertise keywords and get cited by AI tools like ChatGPT or Perplexity. Content is designed to demonstrate the firm's competence — not to fill a blog without strategy. I work with you to define priority topics, appropriate formats (in-depth articles, case studies, sector analyses) and the editorial calendar.

SEO or LinkedIn: which channel should a B2B consulting firm prioritise for lead generation?

Both are complementary — but they serve different stages of the client journey. LinkedIn is effective for brand awareness and direct relationships, but organic reach is declining and content has a very short shelf life. SEO, on the other hand, builds a durable asset: a well-ranked article keeps generating qualified visitors months after publication. In 2026, Google AI Overviews and generative AI tools (ChatGPT, Perplexity) cite authoritative sources — your website is the only place where you fully control that content. I build sites combining technical SEO and GEO so your firm is found on Google and cited by AI, whatever your prospects are searching for.

Can a blog and editorial strategy be integrated directly into my consulting firm's website?

Yes — it's at the core of the offering. The sites I build for consulting firms natively include a blog with an optimised SEO architecture: structured URLs, semantic markup, internal linking between articles and service pages. You have two options for content management: I handle it through a monthly editorial retainer (from €150/month), or you manage it yourself with a bespoke CMS if your team wants full publishing autonomy. In both cases, each article is designed to answer a specific search intent and to demonstrate your firm's expertise on questions your clients are actually asking.

Can I connect my website to my CRM for lead nurturing?

Yes. The sites I build for consulting firms can be integrated with the main CRMs on the market: HubSpot, Salesforce, Pipedrive, Zoho, or an internal CRM. Contact forms, content download requests (white papers, studies) and newsletter sign-ups feed directly into your prospecting pipelines. I also configure analytics events (Google Analytics 4, Matomo) to track conversion paths and identify which pages generate the most qualified leads. If your nurturing process includes AI-powered automations, these are integrated from the design phase.

What happens if Sébastien is no longer available — who maintains my site?

This is a legitimate question that any serious consulting firm should ask. Here is my concrete answer: the full source code of your site is delivered to your own Git repository from day one. Every line of code follows industry standards (Astro, TypeScript, documented conventions) — any competent web developer can take over without any transition period. I work with a network of trusted associates who have secure access to projects and can step in if I am unavailable. You are never locked into a proprietary dependency. Unlike a WordPress site with third-party plugins or a SaaS platform, your site is an asset you own outright and can evolve with any provider.

My firm is small (3-5 consultants). Is this suited to my budget?

Yes. The offering adapts to the size of your firm. A full marketing site with SEO blog and CRM integration starts at €5,200 — that's the cost of one or two consulting days billed to your clients. For a small firm, we focus on the essentials: a content architecture targeting 2-3 key themes, service pages that convert, and a well-connected CRM. You don't need 50 pages to start ranking. The advantage of a small firm is agility: you can publish content quickly, test angles, and see the first SEO results within a few months. Then the site grows with you — we add content silos, case studies and service pages as your firm develops.

How long before SEO results for my consulting firm?

Generally, first Google rankings arrive between 3 and 6 months after launch, on the least competitive keywords in your niche. That's the time Google takes to index your content, evaluate your site's relevance and start positioning it. What accelerates things: a well-structured content architecture from the start (that's what I deliver), a regular publishing cadence (even one article per month makes a difference) and a domain with at least some history. The effect is cumulative: each new piece of content reinforces the previous ones. After 12 months, a firm that publishes regularly can generate dozens of qualified visitors per week — decision-makers searching for exactly what you offer. It's an investment that compounds, not an ad spend that stops when you cut the budget.

Your firm deserves a site that generates mandates, not just clicks.

Your firm deserves a site that generates mandates, not just clicks.

25 minutes to analyse your online presence, identify the expertise keywords you should rank for and see what your competitors are doing better than you digitally. You leave with a clear diagnosis and concrete recommendations, even if you don't sign.

Free. No commitment. With Sébastien, founder of Coddy (scalable content architecture across 9 markets) and full-stack developer for over 10 years.

Book my free call — 25 min