What Does TellApart Do?

Total employees3
HeadquartersBurlingame
Founded2009

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.

Where Is TellApart's Headquarters?

TellApart officeTellApart officeTellApart officeTellApart office
*Images sourced via web search. Rights belong to original owners

HQ Function

Primary hub for research and development, engineering, product management, sales, marketing, and corporate operations before its acquisition by Twitter.

Notable Features:

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.

Work Culture:

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.

HQ Significance:

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.

Values Reflected in HQ: The headquarters likely reflected values such as innovation, data-centric decision-making, customer focus, and engineering talent, crucial for its success in the competitive ad-tech landscape.

Location:

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.

Street Address:

500 Airport Blvd, Suite 400

City:

Burlingame

State/Province:

CA

Country:

USA

Where Else Does TellApart Operate Around the World?

N/A

Address: N/A

N/A - Focus was on centralized operations from the main HQ.

Buying Intent Signals for TellApart

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.

Notable news
Hiring actively
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
*Example signal, not calculated in real time

Who's Leading TellApart? Meet the Executive Team

As of April 2025, TellApart' leadership includes:

Josh McFarland - Co-Founder & CEO
Mark Shim - Co-Founder & CTO
Ilya Kirnos - President

Who's Investing in TellApart?

TellApart has been backed by several prominent investors over the years, including:

Greylock Partners
Bain Capital Ventures
Harrison Metal
SV Angel
Hummer Winblad Venture Partners
Founder Collective

What Leadership Changes Has TellApart Seen Recently?

Hire0
Exits0

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.

What Technology (Tech Stack) Is Used byTellApart?

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.

TellApart Email Formats and Examples

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

What's the Latest News About TellApart?

TechCrunch • April 28, 2015

TellApart News: Twitter Confirms TellApart Acquisition, Price Is $532.6M (Really $479M Net Of Assets)

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 News: TellApart Raises $13M Series B From Greylock And Bain To Help eTailers Crunch Data And Create Ads

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

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