Callisto is the B2B trading platform from Alchemy, a global leader in wholesale secondary tech.
With 2m+ devices traded annually and over $700m in GMV, we connect 3,000 + verified buyers and sellers across 60+ countries through a marketplace built on trust, quality, and scale.
As part of Alchemy’s circular tech ecosystem, Callisto provides verified global access to consistent, high-quality refurbished and pre-owned stock—from smartphones and tablets to laptops and wearables. Every transaction is safeguarded with KYC compliance, Escrow-secured payments, and independent returns management.
Callisto powers the global circular economy for technology - efficient, secure, and built for business.
Product information:
Callisto is the wholesale tech marketplace where verified buyers and sellers trade with confidence, at scale.
Designed exclusively for B2B, Callisto offers three seamless ways to buy and sell:
Catalogue: List or purchase directly at fixed prices
Auction: Bid or host live and silent auctions
Offers: Submit or accept buyer-driven pricing for flexible deal-making
Sellers gain global visibility and pricing control, with tools to manage stock, SKUs, and sales cadence directly from the dashboard. Buyers benefit from consistent grading, no sign-up fees, and escrow-secured payments that reduce risk and simplify procurement.
All transactions are fully verified and KYC-compliant, with logistics and returns support built in. Whether you're sourcing volume or moving surplus, Callisto delivers scalable, secure trade on your terms.
Built for tech businesses. Backed by trust. Powered by performance.
