LeadSift is a B2B intent data platform that helps sales and marketing teams identify prospects who are actively researching products or services. By mining publicly available web data—including social media, forums, job boards, and competitor content—LeadSift delivers actionable insights that enable businesses to engage with high-intent leads. The platform uses proprietary AI and machine learning algorithms to analyze behavioral signals and enrich them with firmographic and contact data, making outreach more targeted and effective.
LeadSift was founded on April 3, 2012, in Halifax, Nova Scotia, Canada, by Tapajyoti Das, Sreejata Chatterjee, Daniel Allen, and Hatem Nassrat. The company began as a social media intelligence platform focused on converting online chatter into actionable sales leads. Over time, it evolved into a full-fledged intent data provider, serving some of the fastest-growing B2B software companies globally. LeadSift gained traction for its ability to deliver real-time buyer intent signals, helping clients improve conversion rates and reduce prospecting time.
LeadSift raised a total of $1.39 million across four funding rounds, with key investors including OMERS Ventures, Salesforce Ventures, Innovacorp, and angel investor Gerry Pond. The most notable funding round occurred in June 2015, led by OMERS Ventures. While the exact valuation figures remain undisclosed, the company’s estimated annual revenue is around $1.4 million, with approximately 16 employees.
LeadSift’s core product is its intent data mining platform, which identifies in-market buyers based on behavioral signals from the public web. Key features include:
The platform is cloud-based and designed for scalability, making it suitable for both startups and enterprise-level organizations.
On December 14, 2021, LeadSift was acquired by Foundry (formerly IDG Communications), a global leader in market intelligence and media. This acquisition allowed LeadSift to integrate with Foundry’s broader suite of marketing and ABM tools, including Triblio, enhancing its data enrichment and targeting capabilities. The partnership also expanded LeadSift’s reach and enabled deeper integrations with platforms like Apollo.io, which now includes LeadSift’s intent data across all plans.
Recent innovations include:
These features reflect LeadSift’s commitment to making buyer intelligence more accessible and actionable for sales teams.
LeadSift has maintained a lean and agile team culture, with around 15–16 employees based in Halifax. The company emphasizes innovation, data transparency, and customer-centric development. As part of Foundry, LeadSift benefits from a broader organizational culture focused on data-driven decision-making, privacy compliance, and global collaboration.
LeadSift serves a global B2B audience, including SaaS companies, marketing agencies, and enterprise sales teams. Its users range from small startups to large organizations seeking to improve lead quality and outreach efficiency. The platform is particularly popular among teams focused on account-based marketing (ABM) and demand generation. Through its integrations with Apollo and Slack, LeadSift has built a community of users who value real-time engagement and data-driven prospecting.
