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Enveloop

DefunctYC W20

Birmingham, US · Founded 2021 · 5 employees · 4 known investors

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Enveloop provides a unified API that lets application developers send emails and text messages without integrating multiple libraries for each channel.

Also known as BuildPlane Corporation · BuildPlane

Developer ToolsEnterprise SoftwareSaaSB2BMessagingAnalyticsUnited States of AmericaAmerica / CanadaFully Remote

Founders & leadership· Y Combinator alumni (W20)

Enveloop was founded in 2021 by Chris Winslett, Jason McCay, and Ben Wyrosdick.

CWChris Winslett
Chris WinslettFounderuntil 2025Chris Winslett has worked as an early-stage operator across multiple functions including technology, product, sales, and marketing at startups.
JMJason McCay
Jason McCayFounder2022–2025Jason McCay founded Enveloop, which provides a unified API for developers to send emails and text messages. He previously founded Compose.io, which was acquired by IBM, and is a graduate of Auburn University and Y Combinator.
BWBen Wyrosdick
Ben WyrosdickFounderBen Wyrosdick founded Compose, a distributed platform with multiple web applications and services, and has spent the last decade developing software primarily with Ruby and related web technologies.

Investors · 4

Gradient VenturesreportedSan Francisco · $100K – $10M

How we know: Y Combinator's founder network · Not right? Tell us

Liquid VenturesreportedSan Francisco · $250K – $5M

How we know: Y Combinator's founder network · Not right? Tell us

Soma CapitalreportedSacramento · $100K – $300K

How we know: Y Combinator's founder network · Not right? Tell us

Founder mafia

2 people who came through Enveloop went on to found or lead other companies.

Jason McCayFounderFounded Common Thread +1Ben WyrosdickFounderFounded Compose

Related companies · 5

OneSignalOneSignal provides customer engagement and messaging infrastructure that enables businesses to send personalized, omnichannel communications to their customers at scale. The platform serves mobile app developers and businesses of all sizes across industries.
Glowing.ioGlowing provides a messaging platform that allows brands to communicate with customers through popular mobile messaging services, targeting users who prefer text-based communication over traditional channels.
HilosHilos provides a WhatsApp business platform for sales teams to capture leads, automate customer follow-ups, and close deals through WhatsApp messaging; it integrates with CRMs and marketing tools to increase conversion rates.
BoostlyBoostly helps restaurants acquire new customers and build loyalty through personalized text offers, automated review generation, and ROI tracking. The platform drives orders and generates five-star reviews while providing transparent reporting on marketing spend and revenue impact.
CourierCourier provides a notification platform that delivers messages to Slack and Teams with customizable routing, authentication, and multi-channel capabilities. It enables developers to send targeted, context-aware alerts and updates across multiple chat platforms from a single template.

Companies working in the same space as Enveloop.

Legal entities · 1

corporate structure
BuildPlane Corporation

In the news

Enveloop - Build and send messages with a single API.ycombinator.com · Nov 2022

Frequently asked questions

What does Enveloop do?
Enveloop provides a unified API that lets application developers send emails and text messages without integrating multiple libraries for each channel.
Who founded Enveloop?
Enveloop was founded by Chris Winslett, Jason McCay, Ben Wyrosdick in 2021.
Who are Enveloop's investors?
Enveloop's investors include Y Combinator, Gradient Ventures, Liquid Ventures, Soma Capital.
Where is Enveloop headquartered?
Enveloop is headquartered in Birmingham, US.