Multithread effectively and personalize outreach to convert deals faster
Elevate social presence and drive business growth from social media
Identify and prioritize high-intent leads, and improve sales effectiveness
Find and connect with ICP attendees, and improve event outcomes
TellApart was a technology company specializing in predictive marketing and advertising solutions for e-commerce businesses. Founded in 2009, it provided retailers with tools for personalized ad retargeting, customer segmentation, and dynamic product recommendations across multiple channels, including display, email, and social media. The company's platform aimed to help online retailers convert shoppers into buyers by delivering relevant marketing messages based on user behavior and predictive analytics. TellApart was acquired by Twitter in April 2015 to bolster Twitter's advertising technology capabilities.
Primary hub for research and development, engineering, product management, sales, marketing, and corporate operations before its acquisition by Twitter.
The office was likely a modern tech office space in the San Francisco Bay Area, designed to foster collaboration and innovation. Specific architectural details are not widely publicized.
TellApart was known for a fast-paced, innovative, and data-driven startup environment, characteristic of Silicon Valley tech companies of its era. The culture emphasized engineering excellence and solving complex marketing challenges for its clients.
This location served as the central command for TellApart's operations, product development, and strategic growth until its acquisition by Twitter in 2015, playing a key role in its development as a leading ad-tech firm.
While its physical headquarters and primary operations were based in the United States (California), TellApart's predictive marketing platform and advertising solutions served e-commerce clients with a global customer base. Its technology enabled retailers to reach consumers internationally, reflecting a global service reach despite a centralized operational footprint before being acquired by Twitter.
500 Airport Blvd, Suite 400
Burlingame
CA
USA
Address: N/A
N/A - Focus was on centralized operations from the main HQ.
Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.
As of April 2025, TellApart' leadership includes:
TellApart has been backed by several prominent investors over the years, including:
TellApart was acquired by Twitter in April 2015 and ceased to operate as an independent entity. Consequently, there have been no executive hires or exits pertaining to TellApart as a standalone company in the last 12 months from the current date. Key leadership changes occurred at the time of its acquisition and integration into Twitter.
Discover the tools TellApart uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.
As TellApart is no longer an active independent company (acquired by Twitter in 2015), its email domain (tellapart.com) is inactive. The following formats are speculative, based on common conventions for tech companies during its operational period.
Likely formats included [first].[last]@tellapart.com (e.g., jane.doe@tellapart.com) or [first_initial][last]@tellapart.com (e.g., jdoe@tellapart.com).
Format
jane.doe@tellapart.com (Note: Domain is inactive)
Example
0%
Success rate
TechCrunch • April 28, 2015
Twitter officially announced its acquisition of TellApart, a marketing tech company specializing in retargeting and predictive advertising for e-commerce. The deal was valued at approximately $532.6 million, aimed at enhancing Twitter's direct response advertising capabilities....more
TechCrunch • February 29, 2012
TellApart, a company offering data analytics and ad creation tools for e-commerce retailers, secured $13 million in Series B funding. The round was led by Greylock Partners and Bain Capital Ventures, aimed at expanding its engineering team and platform capabilities....more
See where a company’s workforce is located, by country or region.
View past and recent funding rounds with amounts and investors.
Understand company revenue estimates and financial scale.
Track active roles and hiring trends to spot growth signals.
Discover what a company offers—products, platforms, and solutions.
Get the company’s official SIC and NAICS classifications.
Analyze visitor volume, engagement, and top traffic sources.
Explore LinkedIn, Twitter, and other active social profiles.
Identify top competitors based on similar business traits.
Explore companies in depth — from the tech they use to recent funding, hiring trends, and buyer signals — all in one powerful view.
Highperformr AI helps you surface the right accounts and enrich your CRM with verified company and contact insights, so your teams can prioritize and engage faster.
Thousands of companies, including TellApart, are just a search away.