The verdict in three sentences
Sending Google Ads clicks at 25 to 60 EUR per click to a consulting firm's homepage means paying 1,700 to 4,000 EUR per lead when conversion stalls at 1.5%. A dedicated landing page per offer, built around one promise and a short form, commonly reaches 4 to 8% after 6 weeks of A/B testing. The design budget usually pays for itself in the first month of the campaign, provided you measure qualified leads and not just clicks.
Why the homepage burns money in Search
A query like "operations consulting for mid-size companies" or "procurement transformation advisory" expresses a precise need. A consulting firm's homepage talks about values, team and ten areas of expertise. The visitor who cost you 40 EUR has to hunt for the answer alone, so they leave. Google sees it too: Quality Score drops and cost per click rises.
An effective landing page for a consulting firm fits in five blocks: a promise aligned with the keyword, three quantified results from typical engagements, the method in four steps, two or three sector references (with client consent) and a form with 4 fields maximum plus direct meeting booking.
| Indicator (2026 order of magnitude) | Homepage | Dedicated landing page |
|---|---|---|
| Average cost per click, B2B consulting Paris | 25 to 60 EUR | 20 to 50 EUR (better Quality Score) |
| Visitor to lead conversion rate | 1 to 2% | 4 to 8% |
| Cost per lead at 40 EUR CPC | 2,000 to 4,000 EUR | 500 to 1,000 EUR |
| Form fields | 8 to 12 | 3 to 4 |
| Mobile load time | 3 to 5 s | under 1.5 s |
| Time to measure an A/B winner | not applicable | 4 to 6 weeks |
What a B2B landing page costs in Paris and New York
Price gaps depend on the number of variants, the quality of proof (written case studies, videos) and tracking. A page without offline conversion tracking (lead turned into engagement) cannot optimize bids on real value.
| Service (2026 market estimates) | Paris, French agency | New York, US agency |
|---|---|---|
| Single custom landing page | 1,500 to 4,000 EUR excl. VAT | 3,000 to 8,000 USD |
| 3-page pack (one per offer) | 4,000 to 9,000 EUR excl. VAT | 7,000 to 18,000 USD |
| 6-week A/B test (2 variants) | 800 to 2,000 EUR excl. VAT | 1,500 to 4,000 USD |
| GA4 tracking, offline conversions, CRM | 600 to 1,500 EUR excl. VAT | 1,200 to 3,000 USD |
| Monthly campaign management | 10 to 20% of media spend | 12 to 20% of media spend |
| Writing one case study | 300 to 800 EUR excl. VAT | 600 to 1,500 USD |
These amounts are market estimates, not Kolonell's rates. For firms targeting African markets (Dakar, Abidjan, Douala), Kolonell charges 100,000 FCFA for ad campaign setup (about 150 EUR) and builds the pages as part of a website on its 2026 grid: Starter 800,000 to 1,200,000 FCFA (1,220 to 1,830 EUR), Growth 1,200,000 to 2,000,000 FCFA (1,830 to 3,050 EUR).
What to test first
An A/B test comparing two button shades is useless with 300 visits a month. With low B2B visit volumes, test strong hypotheses, one at a time, for at least 4 to 6 weeks.
| Hypothesis tested | Commonly observed effect | Priority |
|---|---|---|
| Quantified promise vs generic promise | +30 to +60% conversion | 1 |
| 4-field form vs 9-field form | +40 to +80% leads, watch quality | 2 |
| Embedded Calendly booking | +20 to +40% actual meetings | 3 |
| Sector case study visible above the fold | +15 to +30% | 4 |
| 60-second partner video | +10 to +25%, variable | 5 |
Mini case study
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Thomas, partner at a 12-consultant operations consulting firm in Paris (illustrative scenario), spends 6,000 EUR a month on Google Ads. With an average CPC of 40 EUR, he gets 150 clicks and 2 leads (1.3%), or 3,000 EUR per lead. He invests 3,500 EUR excl. VAT in two landing pages and an A/B test. After 6 weeks, CPC drops to 34 EUR (176 clicks) and conversion reaches 5%: 9 leads a month, or 667 EUR per lead. If one lead in five becomes a 25,000 EUR engagement, the firm goes from 0.4 to 1.8 engagements a month for the same media budget. A New York firm paying 60 to 120 USD per click sees the same ratio, with larger absolute stakes. The investment is covered by the first signed engagement.
FAQ
How many visits does a reliable A/B test need?
To detect a move from 2% to 4%, count roughly 1,000 visits per variant. With 300 clicks a month, that takes 6 to 7 weeks, which is why you should test strong changes.
Do I need one landing page per keyword?
No, one page per intent or offer is enough, so 2 to 5 pages for a typical firm. Beyond that, upkeep and copywriting cost more than the Quality Score gain.
Can a landing page live outside the main website?
Yes, but a subfolder of the main domain keeps brand trust and simplifies tracking. A third-party tool also adds 50 to 300 EUR a month in subscription fees.
What conversion rate should B2B consulting target?
A realistic goal is 4 to 8% from visitor to lead. Above 10%, check quality: a form that is too easy attracts students and vendors.
What does campaign management cost after launch?
In the French and US markets, count 10 to 20% of media spend. At Kolonell, for African markets, setup costs 100,000 FCFA and complementary organic search starts at 100,000 FCFA a month with the SEO Essential plan.
Let's scope your project. Send us your priority offers, monthly media budget and current rates: we price the pages and the 100,000 FCFA campaign setup, with a 6-week testing plan. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
