Knock
Seattle, US · Founded 2013 · Washington corporation · 14 known investors
Knock is an AI-native customer engagement platform that lets teams build and send product, marketing, and transactional messaging across email, SMS, push, chat, and in-app channels from one place. It offers developer-focused tooling (CLI, AI IDE integration, version control, observability) and data ingestion from warehouses, CDPs, and webhooks to trigger and personalize messaging workflows.
Cloud ComputingDeveloper ToolsMarketing TechSaaS
Founders & leadership
TP
Thomas PetryNamed on SEC filing
DT
Demetri ThemelisNamed on SEC filing
Investors · 14
Afore CapitalSan Francisco · $500K – $2M
Craft VenturesSan Francisco · $50K – $50M
ExpaWest Hollywood · $250K – $3M
Madrona Venture GroupSeattle · $2M – $10Mvia Scott Jacobson · board
Worklife VenturesWalnut · $500K – $2Mvia Brianne Kimmel · inferred
CoFound Partners VenturereportedSan Francisco · $500K – $1.5M
Company Venturesreported · 2 sourcesNew York · $100K – $1M
Corazon Capitalreported · 2 sourcesChicago · $150K – $500K
Fifth Wallreported · 2 sourcesLos Angeles · $250K – $100Mvia Vik Chawla · board
FJ Labsreported · 2 sourcesNew York · $100K – $3M
FoundryreportedBoulder · $250K – $15M
Preface VenturesreportedNew York · $750K – $2M
RRE Venturesreported · 2 sourcesNew York · $5M – $15M
WTIreported · 2 sourcesPortola Valley
Reported raises · per SEC filings
Form D private placements$40M disclosed across 7 rounds · 2014–2021
▶$17MraisedFeb 2021 · 8 investors · Other TechnologyRule 506(b)
▶$17MraisedFeb 2021 · 8 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- Thomas PetryExecutive Officer, Director, Promoter
- Demetri ThemelisExecutive Officer, Director, Promoter
- James McAvityDirector
- Scott JacobsonDirector
- Vik ChawlaDirector
- Offering amount
- $20M
- Amount sold
- $17M
- First sale
- Feb 2021
- Incorporated
- Corporation, Washington
- Federal exemptions
- 06b
▶$10.7MraisedMay 2020 · 4 investors · Other TechnologyRule 506(b)
▶$10.7MraisedMay 2020 · 4 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- Thomas PetryExecutive Officer, Director, Promoter
- Scott JacobsonDirector
- James McAvityDirector
- Demetri ThemelisExecutive Officer, Director, Promoter
- Offering amount
- $12M
- Amount sold
- $10.7M
- First sale
- Apr 2020
- Incorporated
- Corporation, Washington
- Federal exemptions
- 06b
▶$8.3MraisedMar 2019 · 2 investors · Other TechnologyRule 506(b)
▶$8.3MraisedMar 2019 · 2 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- Thomas PetryExecutive Officer, Director, Promoter
- Demetri ThemelisExecutive Officer, Director, Promoter
- Scott JacobsonDirector
- James McAvityDirector
- Offering amount
- $10M
- Amount sold
- $8.3M
- First sale
- Feb 2019
- Incorporated
- Corporation, Washington
- Federal exemptions
- 06b
▶$1.2MraisedJun 2018 · 5 investors · Other TechnologyRule 506(b)
▶$1.2MraisedJun 2018 · 5 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- James McAvityDirector
- Thomas PetryExecutive Officer, Director, Promoter
- Demetri ThemelisExecutive Officer, Director, Promoter
- Offering amount
- $2M
- Amount sold
- $1.2M
- First sale
- May 2018
- Incorporated
- Corporation, Washington, 2013
- Federal exemptions
- 06b
▶$1.6MraisedAug 2016 · 5 investors · Other TechnologyRule 506(b)
▶$1.6MraisedAug 2016 · 5 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- James McAvityDirector
- Thomas PetryExecutive Officer, Director, Promoter
- Demetri ThemelisExecutive Officer, Director, Promoter
- Offering amount
- $2.5M
- Amount sold
- $1.6M
- First sale
- Aug 2016
- Incorporated
- Corporation, Washington, 2013
- Federal exemptions
- 06b
▶$1.1MraisedApr 2015 · 28 investors · Other TechnologyRule 506(b)
▶$1.1MraisedApr 2015 · 28 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- Thomas PetryExecutive Officer, Director, Promoter
- Demetri ThemelisExecutive Officer, Director, Promoter
- Offering amount
- $1.1M
- Amount sold
- $1.1M
- First sale
- Mar 2015
- Incorporated
- Corporation, Washington, 2013
- Federal exemptions
- 06b
▶$50KraisedJan 2014 · 2 investors · Other TechnologyRule 506(b)
▶$50KraisedJan 2014 · 2 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- Demetri ThemelisExecutive Officer, Director, Promoter
- Thomas PetryExecutive Officer, Director, Promoter
- Offering amount
- $400K
- Amount sold
- $50K
- First sale
- Jan 2014
- Incorporated
- Corporation, Washington, 2013
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Competitors · 5
by search overlapMagicBell364 shared keywordsMagicBell provides notification infrastructure for product teams to build notification experiences for their users. The platform enables developers to implement notification systems quickly without extensive engineering effort.
OneSignal269 shared keywordsOneSignal 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.
Twilio206 shared keywordsTwilio provides a cloud-based communications platform that enables businesses to integrate voice, messaging, and video into applications using APIs. The platform combines communication channels, contextual data, and AI orchestration for enterprises and developers building customer experiences.
Zapier205 shared keywordsZapier provides a platform for connecting AI models and agents to workflows and business applications, enabling teams to automate tasks across over 9,000 apps without coding. The platform serves enterprises, operations teams, and businesses of all sizes looking to deploy AI-driven automation for lead capture, customer support, employee onboarding, and other business processes.
Heymarket204 shared keywordsHeymarket provides a business messaging platform that unifies SMS, email, and messaging apps into shared team inboxes, with CRM integrations and AI agents that automate replies, scheduling, and follow-ups. It serves business teams across customer service, sales, marketing, operations, and recruiting use cases.
Companies competing with Knock for the same Google search keywords, organic and paid, via search-intersection analysis.
In the news
Lefthook: Knock your team’s code back into shapeevilmartians.com · Jul 2019
Polar Vortex Could Knock Back Invasive Tree-Killers–for a Whilescientificamerican.com · Feb 2019
Opendoor competitor Knock raises $400Mtechcrunch.com · Jan 2019Frequently asked questions
- What does Knock do?
- Knock is an AI-native customer engagement platform that lets teams build and send product, marketing, and transactional messaging across email, SMS, push, chat, and in-app channels from one place. It offers developer-focused tooling (CLI, AI IDE integration, version control, observability) and data ingestion from warehouses, CDPs, and webhooks to trigger and personalize messaging workflows.
- Who are Knock's investors?
- Knock's investors include Afore Capital, Craft Ventures, Expa, Madrona Venture Group, Worklife Ventures, CoFound Partners Venture, Company Ventures, Corazon Capital and 6 more.
- How much funding has Knock raised?
- Knock has disclosed $40M raised across 7 rounds.
- Where is Knock headquartered?
- Knock is headquartered in Seattle, US.








