Zembula
Portland, US · Founded 2013 · Oregon corporation · 4 known investors
Zembula offers a Composition Engine that automates personalization of daily retail marketing emails, dynamically selecting and personalizing content for each recipient at the moment of open. It serves enterprise retailers, integrating with their existing email service providers and data feeds to increase revenue and customer loyalty.
Founders & leadership
Zembula was founded in 2013 by Robert J. Haydock, Carl Thorner, and Robert Haydock.
RJ
Robert J. HaydockPresident, CEO, Secretary and Director
CT
Carl ThornerCo-founder & CTO
RH

Robert HaydockCo-founder & CEO
Board
CE
Carl E. ThornerBoard director
Investors · 4
Reported raises · per SEC filings
Form D private placements$2.4M disclosed across 4 rounds · 2014–2017
▶$1.7MraisedSep 2017 · 23 investors · OtherRule 506(b)
▶$1.7MraisedSep 2017 · 23 investors · Other
Rule 506(b)Officers, directors & promoters on the filing
- Robert HaydockExecutive Officer
- Offering amount
- $3.7M
- Amount sold
- $1.7M
- First sale
- Jun 2017
- Incorporated
- Corporation, Oregon, 2013
- Federal exemptions
- 06b
▶$277KraisedMay 2016 · 3 investors · OtherRule 506(b)
▶$277KraisedMay 2016 · 3 investors · Other
Rule 506(b)Officers, directors & promoters on the filing
- Carl ThornerDirector
- Robert J. HaydockExecutive Officer, Director
- Offering amount
- $500K
- Amount sold
- $277K
- Minimum investment
- $25K
- First sale
- May 2016
- Incorporated
- Corporation, Oregon, 2013
- Federal exemptions
- 06b
▶$475KraisedFeb 2016 · 8 investors · OtherRule 506(b)
▶$475KraisedFeb 2016 · 8 investors · Other
Rule 506(b)Officers, directors & promoters on the filing
- Robert J. HaydockExecutive Officer, Director
- Carl E. ThornerDirector
- Offering amount
- $1.2M
- Amount sold
- $475K
- Minimum investment
- $25K
- First sale
- Jan 2015
- Incorporated
- Corporation, Oregon, 2013
- Federal exemptions
- 06b
▶$25KraisedFeb 2016 · 1 investors · OtherRule 506(b)
▶$25KraisedFeb 2016 · 1 investors · Other
Rule 506(b)Officers, directors & promoters on the filing
- Carl E. ThornerDirector
- Robert J. HaydockExecutive Officer, Director
- Offering amount
- $25K
- Amount sold
- $25K
- Minimum investment
- $25K
- First sale
- Mar 2014
- Incorporated
- Corporation, Oregon, 2013
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Competitors · 5
by search overlapOmnisend40 shared keywordsOmnisend is a marketing automation platform that provides email, SMS, and push notification campaigns for ecommerce brands. It offers features including AI-powered copy generation, workflow automation, audience segmentation, and integrations with other marketing tools.
Ceros34 shared keywordsCeros is a platform that enables brands to create interactive and engaging digital content experiences designed to drive higher engagement and conversion metrics. The product serves B2B marketers seeking to differentiate their content and increase audience consumption through captivating, clickable experiences.
SEMrush24 shared keywordsSemrush provides competitive intelligence, SEO, keyword research, and content generation tools for growth marketers and small teams to improve visibility and optimize their acquisition funnel across Google and AI search.
Wix23 shared keywordsWix is a website builder and domain registrar that enables users to create professional websites and online presence. The platform serves businesses, creators, agencies, and enterprises with design tools, business management features, and AI-powered capabilities.
Campaign Monitor22 shared keywordsCampaign Monitor provides an email marketing platform with tools for building campaigns from templates, designing automated customer journeys, creating websites, and tracking results through analytics dashboards. It also offers AI features for audience segmentation and campaign optimization, serving businesses managing email marketing.
Companies competing with Zembula for the same Google search keywords, organic and paid, via search-intersection analysis.
In the news
Frequently asked questions
- What does Zembula do?
- Zembula offers a Composition Engine that automates personalization of daily retail marketing emails, dynamically selecting and personalizing content for each recipient at the moment of open. It serves enterprise retailers, integrating with their existing email service providers and data feeds to increase revenue and customer loyalty.
- Who founded Zembula?
- Zembula was founded by Robert J. Haydock, Carl Thorner, Robert Haydock in 2013.
- Who are Zembula's investors?
- Zembula's investors include Long Way Ventures, Portland Seed Fund, Cascade Seed Fund, Seven Peaks Ventures.
- How much funding has Zembula raised?
- Zembula has disclosed $2.4M raised across 4 rounds.
- Where is Zembula headquartered?
- Zembula is headquartered in Portland, US.




