What is OutboundEngine?
OutboundEngine operates as a specialized marketing-as-a-service provider, designed to streamline digital engagement for businesses that lack dedicated marketing departments. By automating complex email and social media campaigns, the platform enables clients to maintain consistent brand presence and foster customer loyalty without the overhead of traditional agency models. Its market position is defined by its ability to integrate seamlessly into the workflows of service-oriented businesses, providing a scalable solution that drives lead generation and client retention through data-driven content delivery.
How much funding has OutboundEngine raised?
OutboundEngine has raised a total of $27.3M across 4 funding rounds:
Series B
$11M
Debt
$8M
Series E
$6.3M
Debt
$2M
Series B (2014): $11M with participation from Capital Factory companies, Altos Ventures, Silverton Partners, Harmony Group Capital, and Noro-Moseley Partners
Debt (2019): $8M led by Horizon Technology Finance Corp.
Series E (2019): $6.3M supported by Harmony Group Capital, Alerion Partners, Silverton Partners, Noro Mosely, and S3 Ventures
Debt (2020): $2M featuring PPP
Key Investors in OutboundEngine
Silverton Partners
Silverton Partners is a leading early-stage venture capital firm based in Austin, Texas, specializing in investing in companies that leverage technology to create significant barriers to entry.
S3 Ventures
S3 Ventures is the largest venture capital firm focused on Texas, partnering with startups across major cities to provide patient and flexible investment capital.
Altos Ventures
Altos Ventures is a Silicon Valley-based venture capital firm that invests in early to growth-stage technology companies in both consumer and enterprise sectors.
What's next for OutboundEngine?
Looking ahead, OutboundEngine is positioned to capitalize on the increasing demand for automated, high-touch digital marketing tools. The recent strategic financing provides the necessary runway to enhance its proprietary technology stack and potentially expand its service offerings into new vertical markets. As the company matures, the focus will likely shift toward optimizing customer acquisition costs and deepening its integration capabilities within the broader martech ecosystem. By maintaining its focus on high-growth B2B segments, OutboundEngine remains well-equipped to navigate the evolving digital marketing landscape and sustain its competitive advantage in the Austin tech corridor and beyond.
See full OutboundEngine company page