Callsy
Tallinn, EE · Founded 2025 · 2 known investors
Find your way into Callsy
959 people in our graph share verified history with the Callsy team — schools, employers, funds. One of them is your warm intro.
Yuki Shiratounlockedknows Arunas · together at 500 Global (overlapped)
×5knows the team · via Oxford Brookes University
×6knows the team · via 500 Global
Callsy provides AI voice agents that make automated phone calls to recover abandoned checkout carts for D2C and e-commerce merchants. It integrates with platforms such as Shopify, WooCommerce, Klaviyo, and HubSpot, operating across multiple countries and languages at a per-call cost far below human agents.
Founders & leadership
Callsy was founded in 2025 by Arunas, Laimonas, and Arunas Vismantas.
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Arunas VismantasinCo-Founder, CEOArunas Vismantas has over 10 years of experience across retail, hospitality, mobility, telemedicine, e-commerce, and AI technology. He is co-founder and CEO of Callsy, and previously co-founded Smart Vision, a telemedicine startup that raised €2.4 million, and led product development at Podbase and BrandBoosters.
Investors · 2
Competitors · 10
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Twilio13 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.
Zendesk12 shared keywordsThis is Zendesk's internal belonging/diversity and inclusion program page, not a company profile page for an external company. It describes Zendesk's internal culture initiatives and leadership development programs.
Singular9 shared keywordsSingular provides a marketing analytics platform that combines cost aggregation, mobile and cross-device attribution, fraud prevention, and creative analytics for marketing teams. It serves advertisers and agencies across industries including gaming, e-commerce, finance, travel, and web3.
Decagon9 shared keywordsDecagon provides AI agents that enable businesses to deliver personalized customer experiences at scale. The platform targets brands seeking to implement concierge-level service for their customer base.
Drivetrain9 shared keywordsDrivetrain provides driver-based financial planning software that lets finance and revenue teams model revenue, run scenarios, and forecast without spreadsheets or consultants. It supports multi-dimensional modeling by product, segment, region, or customer, integrates actuals from CRM and billing systems via 800+ connectors, and uses AI to build and edit models.
Rebuy9 shared keywordsRebuy is a platform that helps Shopify retailers increase order values and customer retention through personalized product recommendations and post-purchase engagement. The company serves e-commerce businesses of all sizes looking to improve conversion rates and customer lifetime value.
Callminer9 shared keywordsCallMiner provides an AI-powered conversation intelligence and customer experience automation platform that captures and analyzes omnichannel customer interactions such as calls, emails, texts, and surveys. It serves enterprises across sectors including technology, media and telecom, retail, manufacturing, financial services, healthcare, and travel to improve CX, agent performance, and workflow automation.
Sellforte9 shared keywordsSellforte is a marketing measurement and optimization platform that unifies marketing mix modeling, incrementality testing, and attribution into a single always-on system to calculate true incremental ROAS at the campaign and ad-set level. It serves large retail and ecommerce brands, pushing approved budget recommendations directly to Meta, Google, and TikTok via API.
BloomReach8 shared keywordsBloomreach provides an AI-powered personalization platform (Loomi) with apps and agents spanning email, web, ads, search, and conversational shopping for ecommerce and marketing teams. Its Commerce Experience Cloud combines customer data, site search, content management, and marketing automation to deliver real-time personalized customer experiences.
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Frequently asked questions
- What does Callsy do?
- Callsy provides AI voice agents that make automated phone calls to recover abandoned checkout carts for D2C and e-commerce merchants. It integrates with platforms such as Shopify, WooCommerce, Klaviyo, and HubSpot, operating across multiple countries and languages at a per-call cost far below human agents.
- Who founded Callsy?
- Callsy was founded by Arunas, Laimonas, Arunas Vismantas in 2025.
- Who are Callsy's investors?
- Callsy's investors include 500 Global, Firstpick.
- Where is Callsy headquartered?
- Callsy is headquartered in Tallinn, EE.