Campaign architecture is the foundation everything else in a Google Ads account is built on. A well-structured account makes optimisation easier, budget allocation clearer, and reporting more honest. A poorly structured one will quietly waste money no matter how good the ad copy is. Here is the structure we default to for B2B search campaigns, and why each piece exists.
The Core Principle: One Theme Per Ad Group
Each ad group should contain keywords that share the same underlying search intent. Mixing "CRM software" with "best CRM for sales teams" in the same ad group forces your ad copy to be generically relevant to both rather than specifically relevant to either. One theme, one ad message, one landing page, this single rule does more for Quality Score and conversion rate than almost any other structural decision.
Recommended Campaign Structure
We typically start new B2B accounts with three campaign types, each serving a distinct purpose:
- Brand campaign, protects your own brand terms from competitor bidding and controls the message searchers see when they already know who you are
- High-intent non-brand campaign, targets buyers actively searching for a solution like yours, the highest-value traffic in the account
- Competitor campaign, appears when buyers search for named alternatives, capturing comparison-stage intent
Match Type Strategy
Start with exact and phrase match for maximum control while the account builds conversion history. Once you have enough data showing which specific queries actually generate pipeline rather than just clicks, you can carefully test broad match paired with Smart Bidding, but only after the account has a meaningful conversion history to optimise against. Testing broad match too early is one of the most common reasons new accounts burn budget without learning anything useful, a problem we detail in why your Google Ads do not generate quality leads.
Budget Allocation Across Campaigns
Allocate the majority of budget, typically 60 to 70 percent, to your highest-converting campaigns rather than spreading spend evenly across everything. Even allocation feels fair but performs worse, because it sends meaningful budget to underperforming campaigns purely to keep them "active" rather than because they are earning it. Review and rebalance weekly based on cost per lead and lead quality, not click volume alone.
Where This Connects to the Rest of the Funnel
A clean campaign structure is necessary but not sufficient. It needs to be paired with negative keyword discipline, covered in how to eliminate wasted ad spend using negative keywords, and with landing pages that match the intent of each campaign theme, covered in why your B2B landing page does not convert. Structure without those two pieces still leaks budget; it just leaks it more slowly.