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GrowthX

Content and organic growth services for search and AI answers.

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Company model
AI-led hybrid
Category
Marketing & growth
Stage
Series A
GrowthX website homepage screenshot

GrowthX combines an AI content platform with growth expertise for companies building organic acquisition. Its workflow connects buyer-question research, content planning and production with measurement across conventional search and AI answers.

What GrowthX does

GrowthX helps teams decide which questions their content should answer, then move those priorities into briefs, drafts and published pages. The platform uses company context, product information and a writing profile so production reflects the customer’s business rather than treating every assignment as an isolated prompt.

Its workflow maps a question universe using SEO, AEO and competitor information. Teams shortlist opportunities, prepare briefs, review drafts and feed editorial feedback into subsequent work. A coverage check evaluates whether a draft answers its intended question before the content moves to the CMS.

Measurement connects the publishing program to search performance and AI visibility. GrowthX describes tracking brand mentions, cited sources and competitor visibility alongside page-level insights. Customers can use the platform and the company’s growth expertise together, making the current offering broader than a conventional content-writing agency.

  • Content strategy
  • SEO
  • AEO
  • Question research
  • Content briefs
  • AI drafting
  • Editorial review
  • Writing profiles
  • CMS publishing
  • Content measurement
  • AI visibility
  • Competitor research

Differentiation

Compared with a writing tool

GrowthX connects research and prioritization to production and measurement. The core workflow is an ongoing growth program rather than generating an individual article.

Compared with a traditional content agency

Its product carries company context, editorial feedback and measurement between assignments. The service and platform are intended to work together, so the business should not be described only as an agency.

Company details

GrowthX was co-founded by Marcel Santilli, CEO, and Daniel Lopes, CTO. It operates as a fully remote, globally distributed team.

Santilli’s background includes marketing leadership at Deepgram, Scale AI, HashiCorp and ServiceTitan. Lopes leads engineering and product, with prior experience at Canopy, a 37signals spin-off. The pairing connects the company’s growth-service practice with the systems used to deliver it.

Stage
Series A
Funding
$12M Series A

Founders & leadership

Marcel SantilliCo-founder & CEO
Daniel LopesCo-founder & CTO

Investors & backers

$12M Series A led by Madrona.

  • Madrona

Open roles

2 listed
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News & interviews

Explore GrowthX

GrowthX helps teams decide which questions their content should answer, then move those priorities into briefs, drafts and published pages. The platform uses company context, product information and a writing profile so production reflects the customer’s business rather than treating every assignment as an isolated prompt.

Visit GrowthX

Sources & profile notes

This profile brings together published information about GrowthX, including its offering, company details and supporting sources. Review the original material for the full context.

Last reviewed October 21, 2026. Prices and availability may change; inclusion is not an endorsement.