Belgium Google ad probe 2026: B2B risk

On 27 February 2026, the Belgian Competition Authority (BMA) officially launched an antitrust investigation into Google's online advertising practices. The probe focuses on suspected abuse of market dominance in search advertising and adtech — and if you're a B2B service firm in Belgium or the EU that relies on Google Ads to generate leads, this directly affects your positioning, your costs, and your growth strategy.

This isn't a distant regulatory story. It's a signal that the ground beneath your lead generation is shifting.

What is the Belgium Google ad probe actually about?

The BMA investigation targets Google's role as an intermediary across the entire online ad chain: from selling ad space to providing tools for advertisers. The core suspicion is that Google manipulates its own auctions and favours its own display tools over competitors — a practice sometimes called self-preferencing.

This follows a broader pattern of EU regulatory pressure:

A €2.95 billion EU fine against Google's adtech at the end of 2025
A €2.42 billion fine for shopping search bias (confirmed September 2024)
A €4.34 billion Android fine and a €1.49 billion AdSense penalty

The Belgian probe adds a national layer on top of the EU's Digital Markets Act (DMA), which has been enforced since February 2026. Under the DMA, Google is already being forced to give rivals more prominence in search results — which is disrupting organic traffic patterns at the same time as ad costs are rising.

According to reporting from Storyboard18, CPC rates for B2B search terms like "IT consultancy Belgium" rose 22% in Q1 2026 — driven by the auction dynamics now under scrutiny.

Why does this create a positioning risk for B2B service firms?

Most B2B service firms with 5 to 25 employees depend heavily on Google Ads to generate high-intent leads. We're talking about firms where a single deal can be worth €10,000 to €150,000 — and where ad spend of €15,000 to €50,000 per year is common.

When ad costs jump 15 to 25%, that's not just a budget issue. It's a positioning issue. Here's why:

Your authority gets commoditised. If you're paying more per click to appear next to competitors who are also paying more, you're in a race that erodes margin without building brand.
Smaller firms lose disproportionately. Larger advertisers absorb CPC increases more easily. Firms with 5 to 25 employees feel it immediately in their CAC (customer acquisition cost).
Opaque auctions undermine strategy. If you can't trust that your bids reflect real market prices, your entire paid acquisition strategy is built on unstable ground.

The impact varies by sector, but it's real across the board:

Creative and communication agencies relying on display ads face 30% higher costs for visual campaigns, with ROI on €5,000+ project leads shrinking fast
Consultancy and advisory firms see CPCs for high-intent terms like "strategic advisory Brussels" climbing to €8 to €12, according to Brand Equity analysis
IT and cybersecurity companies are dealing with €20+ CPCs for terms like "cloud migration services" while DMA changes simultaneously reduce organic visibility
Legal, accounting, and financial advisors have 55% of their leads at risk, given their dependence on regulated search terms
Engineering and technical service firms running high-value B2B projects (€50,000+) are among the 62% of EU engineering firms affected by market power abuse
HR and recruiting firms face CPCs of €10 to €15 for terms like "executive search Belgium", with a potential 25% cost hike on the horizon

We've seen this pattern before with clients in the consulting and advisory space: over-reliance on paid search creates fragile positioning. When the channel gets expensive or unpredictable, there's no fallback authority to lean on.

What should B2B service firms do right now?

The good news: this probe is also an opportunity. Firms that diversify now will be better positioned when (not if) Google's ad costs rise further. Here's a practical five-step approach you can start this week.

Step 1: Audit your Google Ads dependency (1 to 2 days)

Export your lead data using Google Ads Editor (free). Calculate what percentage of your leads comes from paid Google search. If it's above 40%, you're in a vulnerable position. This is your baseline.

Step 2: Test Microsoft Advertising as a parallel channel (week 1)

Microsoft Advertising (Bing Ads) offers roughly 70% overlap with Google's B2B search queries, at CPCs that are 20 to 40% lower. For "consultancy Belgium"-type terms, you're looking at €4 to €7 per click versus €8 to €12 on Google. The reach is smaller (around 15% EU market share), but the B2B audience quality is strong, particularly in engineering, HR, and professional services.

Step 3: Build organic authority through DMA-driven SEO (weeks 2 to 4)

The DMA is forcing Google to surface more diverse results. That's actually good news for content-led positioning. Invest in niche-specific content: "cybersecurity compliance Belgium 2026", "GDPR advisory for SMEs", "engineering procurement EU regulations". Tools like Ahrefs (from €99/month for the Starter plan) give you keyword tracking, site audits, and SERP shift monitoring that free tools like Google Search Console simply don't offer. Agencies we've worked with have seen 25 to 40% organic traffic growth within three to six months of consistent content investment.

Step 4: Add LinkedIn Ads to your mix for high-ticket leads (month 1)

For B2B service firms targeting decision-makers, LinkedIn Ads deliver a targeting precision that Google can't match. You can filter by job title, company size, and industry — which matters enormously when you're selling €100,000+ engagements. Starting budget is €10/day, with CPCs between €6 and €12. LinkedIn's own B2B data shows a 5:1 ROI for consultancy-style services, compared to Google's declining 2.8:1 in 2026 adtech conditions.

Step 5: Monitor the probe and adapt (ongoing)

The BMA investigation will evolve over months. MLex Antitrust (professional tier at around €2,000/year) offers the most detailed predictive analysis on probe outcomes, including potential fines that could reach 10% of Google's global revenue. If you're not ready to invest in that, set up Google Alerts for "BMA Google probe" and "DMA adtech Belgium" as a free minimum.

How much can diversification actually save?

Let's put numbers on this, because the business case is clearer than most firms realise.

Ad cost reduction: Diversifying away from Google-only reduces ad spend by 20 to 35%, translating to €10,000 to €20,000 per year for a typical 5 to 25 employee firm
Lower CAC: Firms that diversify see a 22% drop in customer acquisition cost. For consultancies, that's €3,200 per client versus €4,100 on Google-only, according to EU adtech analysis
Engineering firms specifically: Belgian engineering firms with fewer than 25 employees are saving an average of €7,500 per year by shifting budget to Bing Ads, with a 3.7:1 ROI, per WTVB reporting
Deal velocity: 62% of EU and Belgian consultancies are planning diversification. Early movers report 25% faster deal closing, likely because organic authority signals expertise in a way that paid ads don't

A Brussels-based consultancy of 18 employees that invested in Ahrefs-driven SEO after the DMA changes saw organic traffic increase by 32%, ad spend drop by 19%, and started closing deals at the €150,000 level. A Belgian IT and cybersecurity firm in Antwerp combined LinkedIn Ads with niche SEO content around GDPR compliance and achieved a 2.5x ROI versus Google's 1.8x.

These aren't hypothetical projections. They're the kind of results we've seen when IT and software firms stop treating their website as a brochure and start treating it as a positioning asset.

What tools should you use to reduce your Google dependency?

Here's a quick breakdown of the key tools, what they're best for, and what they cost:

Microsoft Advertising

Best for: B2B CPC alternative to Google
Pricing: Pay-per-click, no minimum spend
Key advantage: 70% search query overlap, AI bidding, 20 to 40% lower CPCs for B2B terms
Limitation: Smaller audience reach in Belgium (around 15% market share)

Ahrefs

Best for: SEO, keyword tracking, SERP monitoring
Pricing: Starter at €99/month, Agency tier at €399/month
Key advantage: Full site audit (100+ issue checks), rank tracking, DMA-shift detection
Limitation: Steeper learning curve than Google Search Console

LinkedIn Campaign Manager

Best for: High-ticket B2B lead generation
Pricing: From €10/day, CPC between €6 and €12
Key advantage: Job title and company-size targeting, strong ROI for professional services
Limitation: Lower volume than Google, higher cost-per-click than Bing

Google Ads Editor

Best for: Auditing your current dependency and bulk editing campaigns
Pricing: Free
Key advantage: Fast bulk edits and data export
Limitation: No predictive analytics or AI-driven insights

Is your website ready to support a non-Google strategy?

Here's the uncomfortable truth: most B2B service websites aren't built to convert organic or LinkedIn traffic. They're built around paid search intent, which is transactional. When you shift to SEO and LinkedIn, you need a website that communicates authority, builds trust, and moves visitors toward a conversation, not just a contact form.

That's the core of what we do at Luniq. We build strategy-led websites for established B2B service firms that want to professionalise their positioning and attract larger deals, without being hostage to Google's ad pricing.

If the Belgium Google ad probe has made you realise your positioning is more fragile than it should be, that's actually a useful moment. It's the right time to build something more durable.

Start with a website audit. We'll show you exactly where your current site is leaking authority and what it would take to make organic and LinkedIn traffic convert at the level your firm deserves.

Book a website audit with Luniq and get a clear picture of your positioning risk before the probe escalates further.

Sources:

Belgium Google ad probe 2026: positioning risk for B2B firms