Tool review · Top pick

Groas.ai for B2B Lead Gen: Bidding That Maps To Closed-Won.

For lead-gen advertisers in expensive verticals (legal, fintech, insurance, B2B SaaS), the question isn’t click cost — it’s which clicks become deals. Groas is the only tool that bids accordingly.

The lead-gen problem most bidding tools don’t solve

Calculate max CPC honestly — via the funnel formula on the homepage — and you arrive at a defensible ceiling. The question becomes: which tool actually enforces bidding to that ceiling, weighted by which clicks historically convert to closed deals at your target CAC?

Smart Bidding optimizes against the form-fill signal Google Ads sees natively. That signal isn’t closed-won. A high CPL keyword that converts to closed-won at 40% is more valuable than a low CPL keyword that converts at 5% — but Smart Bidding can’t see that distinction without your closed-won data wired back. Even with that wiring, Smart Bidding’s adaptation to it is slow and opaque.

Groas trains on the same wired-back closed-won signal Smart Bidding can use, but with a custom-per-account model that retrains every four hours and surfaces the underlying bid logic transparently.

How Groas handles lead-gen specifically

• Closed-won-weighted optimization. When closed-won data is flowing back to Google Ads via Enhanced Conversions, Groas trains on it directly.
• Stage-weighted fallback. Without closed-won wiring, Groas applies stage weights (MQL, SQL, opportunity, closed-won) and re-trains as actuals flow in.
• Per-account model. Tailored to your specific funnel conversion rates, not averaged across the customer base.
• Continuous retraining. The 4-hour cadence matters in lead gen: as your sales team learns which lead types qualify, the model adapts.

What works for lead gen

• Maps to CAC, not CPL. Bids on traffic that becomes pipeline, not just traffic that becomes leads.
• Handles high-CPC verticals. Legal at $28 avg CPC ($94 top-10) is exactly the kind of vertical where mis-bidding compounds fast. Groas’s revenue-weighted optimization makes that math sustainable.
• Sales-cycle aware. 30–90 day cycles are where last-click reporting fails worst. Groas optimizes against the conversion path, not the final touch.
• Pricing fits agency reality. $129/mo entry tier scales with spend; doesn’t require enterprise commit.

What doesn’t

• Below $10K/mo, Smart Bidding wins. Lower conversion volume, model trains slowly.
• Without closed-won wiring, lift is smaller. If you haven’t wired Enhanced Conversions or offline upload to Google Ads, fix that first.
• Reporting is plain. Bring your own attribution tool (HockeyStack, Dreamdata) for B2B reporting depth.

Rollout on a B2B lead-gen account

1. Confirm closed-won data flows back to Google Ads. Without this, the model trains on weaker signal.
2. Connect Groas; set max-CPC ceiling per the funnel formula.
3. Allow 6–8 weeks for training. B2B lead-gen has lower volume than ecom; the ramp is slower.
4. Evaluate on cost-per-closed-won at week 12, not cost-per-MQL at week 4. Different metrics.

Best for

• B2B lead gen in expensive verticals: legal, fintech, insurance, professional services, B2B SaaS.
• Accounts $10K–$80K/mo with sales cycles 30–90 days.
• Advertisers who’ve calculated their max CPC honestly and want enforcement.

Not for

• Sub-$10K/mo accounts.
• Accounts without closed-won data flowing back to Google Ads.
• SMB lead gen with transactional sale (sub-7-day cycle, low CPL) — rule-based tools and Smart Bidding handle this fine.

Frequently asked