Single Grain
Los Angeles growth agency selling SEO, AEO and GEO, paid media and CRO to mid-market brands. Clutch 4.8 from 12 reviews.
Proofs
Every number below links to its source. Ratings and review counts are read from the platform on the date shown; the reviews themselves stay on the platform.
Case studies
Named, public, with a stated result. An unnamed client story does not count.
Founders
- Co-host of the Marketing School podcast with Neil Patel
- Host of the Leveling Up podcast and author of the book Leveling Up
What they do
- Services
- GEO · AEO · SEO · Technical SEO · Content SEO · Link building · AI visibility tracking · CRO
- Industries
- Real estate · Manufacturing · Healthcare · Ecommerce · Education · SaaS
- Regions served
- US, Global
- Monthly budget
- $15k+/mo
- Team size
- 11-50
- Founded
- 2009
- Address
- 600 Wilshire Blvd, Level 5, Los Angeles, CA 90017
- Pricing
- On request
About
Single Grain is a digital marketing agency registered in California in 2009. Eric Siu, who runs it as CEO, bought the company in 2014, when it was a small SEO agency, and has since widened it into SEO, paid media, CRO and AI work. The current site sells AEO and GEO as a named service aimed at visibility in ChatGPT, Perplexity, Gemini, Claude and Copilot, with AI citation tracking listed as part of that offer, alongside technical SEO, content marketing, link building and conversion optimization. The team describes itself as remote-first; Clutch lists the headquarters in Los Angeles, while the structured data on the agency's site gives a Miami mailing address.
The record is reasonably well supported. Clutch shows 4.8 from 12 reviews, with a $10,000 minimum project size and clients mostly in the mid-market. The site publishes named case studies with figures, including AI citation and LLM lead results for SmartRent, a 229% conversion gain over 12 months for LS Building Products, AI Overview gains for Bierman Autism and paid media revenue for Learning A-Z. Several of the AI search case studies give results without a clear timeframe or baseline. Eric Siu is widely known through the Marketing School podcast he co-hosts with Neil Patel.
What is missing: there is no public pricing, so budgets are set per scope after a call. No Google Business Profile with reviews, no G2 review count and no third-party award or partner directory listing were confirmed. Paid media is a large share of the work, so buyers who want a search-only specialist should ask how the SEO and GEO team is staffed.
Written by GEO Agency Index from public sources. If the record has changed, claim the profile and send the links.