Firmographic Segmentation
Also known as: Company Segmentation, B2B Firmographics, Company-Level Targeting
Segmenting B2B audiences by company-level attributes — industry, company size, revenue, headcount, geography, and tech stack.
Definition
Firmographic segmentation groups B2B contacts based on attributes of the companies they work for, rather than personal characteristics of the contacts themselves. Common firmographic dimensions include industry (SaaS, healthcare, financial services), company size (employee headcount), annual revenue, geography, founding year, growth stage, and tech-stack composition.
Firmographics are to B2B what demographics are to B2C — the foundational targeting layer. Most B2B campaigns combine firmographic filters (which companies to target) with behavioral or persona filters (which people within those companies, doing what). A campaign for an enterprise sales tool might target: industry IN (SaaS, FinTech) AND employee count > 500 AND tech stack includes (Salesforce OR HubSpot).
Firmographic data quality determines segmentation quality. Many companies enrich their CRM with third-party firmographic data (Clearbit, ZoomInfo, Apollo) because relying on what contacts self-report at signup produces inconsistent, often-missing data.
Why It Matters
Firmographic segmentation is the difference between sending the right message to the right ICP and shotgun-blasting your full database. A campaign for a Series A SaaS founder is wildly different from a campaign for a Fortune 500 procurement director — same email to both produces minimal results in either segment.
The biggest mistake is over-relying on contact-level data (job title, seniority) without firmographic context. A 'VP of Engineering' at a 50-person startup is buying very differently from a 'VP of Engineering' at a 5,000-person enterprise. Firmographics provide the company context that makes title-based targeting meaningful.
Examples in Practice
A SaaS company building enterprise sales targeting defines an ICP segment: industry IN (SaaS, FinTech, MarTech) AND employee count BETWEEN 500-5000 AND headquartered in US/Canada AND uses Salesforce. The segment narrows their 80,000-contact database to 2,400 highly-qualified contacts at 380 target companies.
A B2B agency targets growth-stage companies for a new service launch: company founding year BETWEEN 2020-2024 AND latest funding round = 'Series B' AND employee count > 100. Combined with persona filters (VP/CRO titles), the segment yields a targeted outbound list of 1,100 ideal prospects.
A vertical-specific software vendor segments by industry primarily: industry = 'Healthcare' AND sub-industry IN ('Dental', 'Veterinary', 'Independent Practices'). The narrow industry focus lets them craft messaging that's specific enough to outperform horizontal competitors in those niches.