Entrepreneurs

Carousell — The Startup Making Buying and Selling Mobile

How two Singaporean entrepreneurs built a mobile marketplace transforming classifieds in Southeast Asia

Augusta Parker
April 25, 2026 · 3 min read
Carousell — The Startup Making Buying and Selling Mobile

Carousell – A Mobile-First Marketplace

Founded in 2012, Carousell is a Singapore-based tech startup that provides a mobile-first platform for buying and selling second-hand goods. The app allows users to list items quickly with photos and descriptions, creating a fast, intuitive, and social marketplace.

Carousell’s mission is to make selling and buying anything simple, fun, and accessible, promoting a circular economy and reducing waste. The platform has become one of Southeast Asia’s leading consumer marketplaces, with millions of users across the region.

Founding Story

Carousell was co-founded by Quek Siu Rui and Lucas Ngoo, two Singapore Management University alumni. Frustrated by the cumbersome process of traditional online classifieds, they envisioned a mobile-first solution that would allow anyone to sell items in minutes.

The founders started with a simple idea: a camera and a smartphone should be enough to sell an item. They built the first version of Carousell in a small office in Singapore, focusing on usability, social sharing, and speed. Word-of-mouth growth helped the app quickly gain traction among students and young professionals.

Funding and Growth Milestones

Carousell’s expansion has been fueled by strategic funding and regional adoption:

  • 2012: Seed funding of $100,000 from angel investors, enabling the initial app launch in Singapore.
  • 2013: Series A funding of $1.5 million to improve technology and expand user base.
  • 2015: Series B funding of $6 million, growing to multiple Southeast Asian markets, including Malaysia and Indonesia.
  • 2016: Raised $35 million in Series C to acquire competitors and enhance platform features.
  • 2018: Series D funding of $85 million, bringing valuation to over $400 million and solidifying its position as a regional leader.
  • 2021: Merged with 701Search (Carousell’s parent company) to become SEA’s largest classifieds marketplace, with millions of active users.

Carousell has successfully scaled across Southeast Asia, creating a thriving mobile-first ecosystem for second-hand goods.

Business Model and Technology

Carousell combines a user-friendly mobile experience with monetization strategies:

  • Mobile-First Design: Quick listings, intuitive swipes, and social sharing capabilities.
  • B2C and C2C Platform: Enables individuals and small businesses to sell directly to consumers.
  • Revenue Streams: Featured listings, advertising, premium subscription plans for sellers, and payment services.
  • Technology: AI-powered recommendations, fraud detection, and localized search to enhance user experience.

By combining simplicity, mobile-first design, and community trust, Carousell disrupted the traditional classifieds industry.

Market Impact

Carousell has reshaped consumer behavior and commerce in Southeast Asia:

  • Circular Economy: Encourages buying and selling pre-owned goods, reducing waste.
  • Regional Reach: Millions of users across Singapore, Malaysia, Indonesia, Philippines, and Taiwan.
  • Startup Ecosystem Influence: Inspired other tech entrepreneurs in Southeast Asia to build mobile-first marketplaces.
  • Innovation Recognition: Consistently recognized as a top tech startup in Asia for user engagement and social impact.

The platform demonstrates how simple technology can drive both social and economic impact.

Challenges and Controversies

Carousell faces challenges common to digital marketplaces:

  • Fraud and Trust Issues: Ensuring user safety and preventing scams in peer-to-peer transactions.
  • Competition: Facing rivals like Shopee, OLX, and Facebook Marketplace in various markets.
  • Scaling Across Borders: Adapting to local regulations, languages, and payment systems in multiple countries.

Carousell addresses these challenges through AI-powered moderation, secure payment integration, and strong community policies.

Future Outlook

Carousell continues to innovate and expand across Southeast Asia and beyond:

  • Platform Expansion: Adding categories like real estate, cars, and services to diversify offerings.
  • Technological Innovation: AI-driven recommendations, better search filters, and integrated payment solutions.
  • Sustainability Focus: Encouraging reuse and resale to promote environmentally responsible consumption.
  • International Growth: Exploring partnerships and potential expansion into new markets outside Southeast Asia.

Carousell exemplifies how a simple, mobile-first idea can scale into a leading regional tech platform.

From a small Singapore startup to Southeast Asia’s largest mobile classifieds platform, Carousell illustrates the power of user-focused innovation and regional scaling. Quek Siu Rui and Lucas Ngoo transformed the way people buy and sell second-hand goods, building a thriving community while promoting sustainability. Their story is a blueprint for tech entrepreneurs aiming to combine simplicity, social impact, and rapid growth into a successful business.

Written by

Augusta Parker

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