Single Grain
Digital marketing agency (legal name Single Grain, LLC per the privacy policy and the site’s LocalBusiness markup) led by CEO and founder Eric Siu. Per its own About page, Siu bought the company in 2014 when it was a struggling SEO agency, so “founded by” is better read as “acquired and rebuilt by”. The agency also operates two podcasts and builds software products, including the managed agent layer SingleBrain.
Services (as listed on singlegrain.com, 2026-10-08)
- AEO and GEO (AI search visibility), SEO
- AI implementation for marketing teams
- Paid media execution (Google, Meta, LinkedIn, TikTok, YouTube) and paid creative
- CRO and conversion work
- Managed revenue agents, delivered through SingleBrain
Podcasts (per the site)
- Marketing School: daily show with Eric Siu and Neil Patel
- Leveling Up: interviews and solo episodes with Eric Siu, with a YouTube channel and newsletter
Leadership (About page, 2026-10-08)
Eric Siu (CEO and Founder), Shaun Merritt (CTO), Nathalie Jans (COO), Carissa Cope (VP Client Operations), Sabrina Armstrong (Head of Sales).
Locations
The site is inconsistent: the privacy policy gives 600 Wilshire Boulevard Level 5, Los Angeles; the structured data gives a Miami, FL address. The About page calls the company remote-first. SingleBrain pages say “Made in Los Angeles” / “Operator HQ in Los Angeles”.
Related products
- SingleBrain: managed revenue agent layer (Slack / Microsoft Teams), built by Single Grain.
- SingleBrain Gateway: one MCP key for a team’s tools; the terms say the service “is operated by Single Grain”.
- ClickFlow (clickflow.com): continuous SEO platform; no vault note. Its site names Single Grain only in a “Done For You” plan description and a testimonial from Eric Siu as “Founder of Single Grain”; ownership is not stated there. Single Grain’s own site promotes it in a popup, and SingleBrain’s agent list names “ClickFlow/API” as its SEO/AEO specialist.
- Karrot (ABM / demand-gen product) is also promoted on the site; not researched.
Client and ROI figures on the site are vendor claims and not repeated here.
Sources (fetched 2026-10-08)
- https://www.singlegrain.com
- https://www.singlegrain.com/about-us/
- https://www.singlegrain.com/privacy-policy/
- https://www.clickflow.com
- https://www.singlebrain.com
Open items
- Whether Single Grain owns ClickFlow and Karrot: not stated on a primary page.
- Which office address is current (Los Angeles vs Miami).
- Founding date of the original agency and the 2014 purchase terms: only the company’s own About-page statement.
- No Eric Siu or Marketing School / Leveling Up vault notes exist; podcast details are from the agency’s site only.