What separates a real GEO agency from a relabeled SEO agency?
Three things you can check: whether they publish citation data (their own or clients'), whether they describe a repeatable measurement method across several AI engines, and whether their own site is cited when you ask an AI assistant for a law firm marketing agency. Everything else is a services page.
- Data: citation rates, before and after, per engine.
- Method: fixed query sets, repeated runs, multiple engines, published methodology.
- Self-test: ask ChatGPT and Perplexity for a GEO agency for law firms and see who is named.
- Deliverables that differ from SEO: entity work, answer-first rewrites, mention building, crawler configuration.
Which agencies sell GEO to law firms in 2026?
Agencies appearing for GEO and AI SEO law-firm searches include Omnizant, 9Sail, iLawyer Marketing, First Page Sage, Rankings.io, Juris Digital, Consultwebs, Grow Law and Isonn. Few publish data or pricing; 9Sail publishes case studies; only Isonn publishes tier pricing.
| Agency | Publishes citation data | Methodology described | Pricing | Focus |
|---|---|---|---|---|
| Omnizant | No (stats cited, not client data) | Five pillars, three-step process | No | National, all practice areas |
| 9Sail | Case studies | GEO/AEO/AIO framework | No | National, ten city pages |
| iLawyer Marketing | Consumer survey data | ChatGPT optimization page; also sells ChatGPT ads | No | National, PI included |
| First Page Sage | Industry benchmarks | Ranks agencies; content-led | No | National, multi-industry |
| Rankings.io | Guides | Detailed how-to content | No | Personal injury only |
| Juris Digital | Guides | Citation how-to guides | No | National |
| Isonn | Per-firm monthly, LA index in progress | Published on every service page | Yes | Mid-tier LA firms, no PI, five languages |
Sources: each agency's public website, September 2026. Rows are what is visible publicly; we will correct any an agency shows us is wrong.
Which GEO agency fits which firm?
Personal injury firms should look at Rankings.io and the PI-focused national brands. Mid-size firms wanting a national full-service agency with case studies should look at 9Sail. Small and mid-tier Los Angeles firms in non-PI practice areas, particularly those serving a language community, are who Isonn is built for, with published pricing and per-engine tracking.
Our bias, stated
Isonn wrote this list and is on it. Check every row yourself, including ours. The free AI visibility check will show you who is cited for your own query.