Citizen Professional
Founded 2013Partnered 2014Series C Financing 2019Crossed $100M in ARR 2021
Careers Page


Iterable is a cross-channel platform that powers unified customer experiences and empowers marketers to improve on every interaction taking place throughout the customer journey. With Iterable, brands create individualized marketing touchpoints that earn engagement, solidify trust and galvanize loyal consumer-brand relationships.

Developed for the enterprise, Iterable is built from modern technologies that transform cloud, partner and tool-specific data into integrated, personalized engagements. No matter the audience size or degree of campaign sophistication, Iterable empowers brands to implement where it matters most—creating experiences and promoting connections with over 2 billion people world-wide. Leading brands, like Zillow, DoorDash, Calm, Madison Reed, and Box, choose Iterable to power excellent customer experiences throughout the entire lifecycle.

Investment Rationale:

We originally got to know the founders of Iterable in 2014 when we invested in the company’s seed round. Iterable was 645 Ventures' very first fund investment. We believed in the founders early product vision, investing when the company only had 5 people, 6 customers, and a few hundred thousand dollars in revenues. At the time, the founders saw an opportunity to bring predictive analytics, real-time A/B testing, and advanced cohort analysis to SMBs looking for better marketing automation software. During our early due diligence, we were impressed by how a small company with little resources could get customers to switch from much larger incumbents including Constant Contact, SailThru, and MailChimp whom, according to those customers, were not innovating fast enough.