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Sirenum

Sirenum

B2B SaaS, workforce management for staffing agencies

Sirenum was spending €11K/month on Google Ads with a 45-day sales cycle. Their workforce management platform helps staffing agencies schedule, track, and pay temporary workers. 70% of leads were small recruitment firms looking for a free scheduling tool.

-38%
CAC reduced in 90 days
€412 → €254 cost per acquisition
Monthly budget

€11K Google Ads

CRM

Salesforce

Model

Sales-led, 45-60 day cycle

Use case

B2B complex sale

The situation

Right product. Wrong leads.

The real buyers (Operations Directors at 100+ employee staffing agencies) weren't being reached. One generic campaign, no segmentation by agency size. CAC was at €412 and rising.

What we found

4 structural problems in the account

Leads were micro-agencies, not mid-market staffing firms with real budget.

No distinction between small and enterprise targeting. A 3-person agency and a 500-person staffing company got the same ads.

Salesforce not connected to Google Ads. No pipeline visibility.

Last-click attribution missing the multi-touch reality of a 45-day enterprise sale.

What we did

From audit to pipeline in 4 weeks

Week 1

Salesforce + Google Ads audit

Mapped which keywords produced Closed-Won vs dead leads. Identified the gap between micro-agency and enterprise targeting.

Week 2

Full offline conversion pipeline

SQL → Opportunity → Closed-Won with deal values. Daily automatic sync via native Salesforce integration.

Week 3

Segment-specific campaigns

Campaigns restructured by agency size (small/mid-market/enterprise) and by keyword intent ('workforce management for staffing agencies', 'temp worker scheduling software', 'staffing agency compliance platform'). Segment-specific landing pages.

Week 4+

Value-based bidding

tROAS on actual deal values. Algorithm prioritized clicks from larger agencies with higher ACV.

Results

After 90 days

All metrics measured against the 90-day baseline period before engagement.

-38%
CAC
€412 → €254
+118%
Monthly pipeline
€67K → €146K
+138%
SQLs per month
8 → 19
-29%
Sales cycle
45 → 32 days

“What surprised us was how quickly the algorithm recalibrated once we started feeding it real pipeline data. The leads we get now are completely different.”

VP of Growth

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