Meta Ads Agency in Paris for Profitable Growth

Sitewise transforms Meta Ads into a growth engine: offers, messaging, creatives, campaigns, conversion paths, and business intelligence all align toward one goal — more e-commerce sales or profitable B2B leads.

50+

Happy Clients

€2.3M

Generated for our clients

2.8x

Average ROI

Sitewise

Industries We Serve

E-commerce Real Estate SaaS & Tech Coaching Wellness Retail Training Restaurant & Hospitality B2B Services Fashion & Beauty E-commerce Real Estate SaaS & Tech Coaching Wellness Retail Training Restaurant & Hospitality B2B Services Fashion & Beauty

Estimate your potential with Meta Ads

A preliminary overview based on averages observed with our current clients

2 000 €
Estimated Leads / Month —
Estimated CPL —
Estimated ROAS —

Indicative estimate based on average performance observed with our clients. Actual results depend on your market, your offer, and your ad account history.

Refine this estimate with an expert

A growth system built around Meta Ads

From value proposition to sales: every lever is driven according to your business model

Meta Ads for E-commerce

Acquisition, catalog, creatives, and retention to grow revenue without sacrificing margins.

  • Custom Audience
  • Smart Retargeting
  • Lookalike Audiences

Meta Ads for B2B Leads

Offer, campaigns, qualification, and sales follow-up to create more genuinely convertible opportunities.

  • Optimized Landing Pages
  • A/B Testing
  • Strategic Scaling

Meta Ads Audit

Comprehensive diagnosis of the account, tracking, audiences, and creatives with a prioritized action plan.

  • Detailed Diagnosis
  • Action Plan
  • Dedicated Support

How Sitewise builds your Meta Ads growth

A continuous loop between commercial strategy, ad execution, and actual results

01

Growth Diagnosis

Offer, margins, funnel, commercial data, and ad account analysis to identify the true bottleneck.

02

System Architecture

Messages, creatives, campaigns, budgets, landing pages, and measurement are organized around validated growth hypotheses confirmed with you.

03

Activation

Production, launch, tracking, and full-funnel optimization. Initial data triggers our first strategic adjustments.

04

Learning and Scaling

Creative, ad, and market insights fuel our testing. We double down on what drives sales and refine the bottlenecks holding growth back.

See the Difference

Slide the slider to compare — results from an HR SaaS campaign

Before Sitewise
82€Cost per Lead
4Qualified leads per week
1.4xROAS
with Sitewise
49€Cost per Lead
11Qualified leads per week
2.7xROAS

Real results observed over 60 days — view the full case study →

Ad Creative Production

Angles crafted to stop the scroll.

Every creative direction is rooted in business context, audience maturity level, and desired action.

Explore Case Studies →

Selection of anonymized recreations. Detailed case studies present the context, strategy, and associated results.

What Our Clients Say

Tangible results, complete with context and lessons from each campaign

B2B · Lead Generation
★★★★★

Our CPL was stagnating around €82 and lead quality was subpar. Sitewise optimized our targeting and forms. In two months, we achieved €49 per lead, with qualification rates significantly improving.

CPL: 82€ → 49€ Lead Volume: +55%
B2B
HR SaaS B2B Lead Generation · 60 Days
Read the full case study →
B2B · Lead Generation
★★★★★

"We were generating only 3–4 qualified appointments monthly via Meta, which was insufficient. Sitewise restructured our campaigns, and we now book 10–12 meetings per month, with CPL dropping from €115 to €68."

Qualified Appointments: 4 → 11 / month CPL: 115€ → 68€
B2B
B2B Consulting Firm Lead Generation · 90 Days
Read the full case study →
B2C · E-commerce
★★★★★

"We were stuck at a 1.6x ROAS, below the breakeven threshold. Sitewise restructured our campaigns and creatives. In three months, we scaled to 3.2x, completely transforming our trajectory.",

]`ROAS: 1.6x → 3.2x Monthly Revenue: +78%
B2C
E-commerce Style Profitable Acquisition · 90 Days
Read the full case study →
B2C · Local Services
★★★★★

"I was spending roughly €55 per appointment with inconsistent fill rates. Sitewise optimized my local campaigns, bringing my cost to €28 per booking. My calendar is now fully booked three weeks in advance.",

]`Cost Per Appointment:` 55€ → 28€ Fill Rate: +85%
B2C
Wellness Center Local Acquisition
Read the full case study →

Meta Ads FAQs

Everything you need to know before contacting us

As a general guideline, we often recommend starting around €500/month. The appropriate amount ultimately depends on your target conversion cost, profit margin, market conditions, and the necessary volume for learning.

Initial data can appear quickly after launch. However, reliable conclusions require sufficient volume and an adequate duration aligned with your conversion cycle; we will outline this timeline at project kickoff.

We work with a 3-month minimum commitment—this is the time needed to test, optimize, and achieve reliable results. Beyond that, you may continue or stop with a 30-day notice.

We support both B2C e-commerce and B2B lead generation firms. Certain highly regulated sectors (alcohol, gaming, medical products) require specific adaptations that we handle on a case-by-case basis.

You gain access to a real-time dashboard. We hold a weekly check-in via message and provide a comprehensive monthly report with performance metrics, analysis, and recommendations for the coming month.

Ready to make Meta Ads a growth engine?

Let's build a system tied directly to your margins, sales, and actual capacity to scale.

Request a consultation

Why choose Meta Ads for customer acquisition?

Facebook and Instagram allow you to reach a broad audience, including before they express active search intent. Unlike Google Ads, which primarily captures existing demand, Meta Ads can generate that demand through messaging, creatives, and audience signals.

For B2B, performance hinges on value proposition, creative assets, available data, and form qualification. In e-commerce, the product catalog, measurement, and retargeting complete the acquisition funnel. Final costs vary based on the offering and market conditions.

At Sitewise, we never isolate the campaign from the broader customer journey; offers, creatives, landing pages, qualification, and sales follow-up are all driven by key metrics that directly impact growth: margin, customer acquisition cost (CAC), revenue, and sales quality.

Precise behavioral targeting

Reach your ideal audience exactly—whether defined by purchase behavior, location, job function, or similarity to your best customers.

Measurable results in as little as J+2

Every euro spent is tracked. You'll know precisely the cost per lead or sale and how to optimize it.

Scales with your goals

A well-structured Meta Ads campaign can scale gradually without losing performance—from initial tests to significant budgets.

Let's talk about your project

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