B2B ecommerce is the online buying and selling of products, goods, or services between two businesses. Unlike B2C ecommerce (where consumers buy from retailers), B2B ecommerce involves business buyers (purchasing managers, procurement teams, department heads) buying from business sellers. The transaction sizes are typically larger, the buying process is more complex (multiple approvers, purchase orders, credit terms), and the relationship is ongoing rather than one-time. B2B ecommerce is now larger than B2C ecommerce by total transaction volume -- Forrester estimates B2B ecommerce at USD 1.8 trillion in the US alone.
B2B ecommerce models
Direct B2B ecommerce
A manufacturer, distributor, or service provider sells directly to business buyers through their own ecommerce website or portal. Business buyers log in to a branded portal where they can see negotiated pricing, order history, product catalogue, and inventory availability. They can place orders 24/7 without calling a sales rep. Examples: an office supplies manufacturer selling directly to corporate buyers via a company portal; a SaaS company selling subscriptions through a self-serve checkout with optional sales assistance for larger orders.
B2B marketplaces
B2B marketplaces connect many buyers with many sellers on a single platform. Unlike direct B2B sites, marketplaces aggregate supply from multiple vendors. Prominent B2B marketplaces: Amazon Business (global, B2B-focused version of Amazon with tax-exempt purchasing, multi-user accounts, and bulk pricing); IndiaMART (India's largest B2B marketplace, connecting Indian manufacturers and distributors with domestic and export buyers); TradeIndia; Alibaba (global, primarily China-sourced supply). B2B marketplaces offer buyers convenience and comparison; sellers gain access to a large buyer pool but pay marketplace fees and face direct competitor comparison.
Distributor/wholesaler ecommerce
Distributors and wholesalers sell in bulk to retailers, resellers, or other businesses online. The buyer typically has an account (with pre-negotiated pricing and credit terms), orders at volume, and the order triggers warehouse fulfilment and a formal invoice. This model is common in FMCG, pharmaceuticals, industrial goods, and building materials.
How B2B ecommerce differs from B2C
- Order complexity: B2B orders typically involve custom quotes, negotiated pricing, volume discounts, and multi-line item purchase orders -- not fixed retail prices
- Payment and terms: B2B buyers often pay on credit (net 30/60/90 terms) with invoices rather than immediate card payment
- Multiple buyers per account: a B2B purchasing account often has multiple users (multiple buyers, approvers) with different permissions
- Recurring orders: B2B ecommerce relationships are typically recurring -- the same buyer orders the same products monthly, not one-time transactions
- Minimum order quantities: wholesale and distributor B2B often has MOQs that do not exist in B2C
- Buying by committee: large B2B purchases require approval from multiple stakeholders, not a single consumer decision
B2B ecommerce in India
India B2B ecommerce is growing rapidly, driven by digital adoption across manufacturing, retail distribution, and procurement. IndiaMART is the dominant B2B marketplace with 170M+ registered buyers; Udaan serves FMCG and pharmacy distribution; Amazon Business India is growing in corporate procurement. India B2B ecommerce faces specific challenges: GST compliance (buyers need sellers to issue GST-compliant invoices automatically), complex logistics (multi-tier distribution networks), and mixed digital readiness (enterprise buyers are highly digital; small buyers in Tier 2-3 cities often prefer phone-based ordering even when the catalogue is online). B2B ecommerce platforms serving India must address these with built-in GST invoice generation, vernacular language support, and integration with India payment rails (UPI, bank transfers).
Frequently asked questions
- What is B2B ecommerce?
- B2B ecommerce is the online buying and selling of goods, services, or products between two businesses (as opposed to B2C ecommerce, where businesses sell to individual consumers). B2B ecommerce includes manufacturers selling to distributors, distributors selling to retailers, SaaS companies selling subscriptions online, and corporate procurement teams purchasing supplies from approved vendor portals. B2B ecommerce transactions are typically larger, more complex (custom pricing, purchase orders, credit terms, approval workflows), and more recurring than B2C transactions. B2B ecommerce is now larger than B2C ecommerce by total transaction volume globally.
- What are the main B2B ecommerce models?
- The main B2B ecommerce models are: (1) direct B2B ecommerce -- a manufacturer or service provider sells directly to business buyers through their own portal or website with account-specific pricing, order history, and self-service reordering; (2) B2B marketplaces -- platforms that aggregate many sellers and buyers (Amazon Business, IndiaMART, Alibaba); (3) distributor/wholesaler ecommerce -- distributors sell to retailers or resellers in bulk with credit terms and volume pricing; (4) SaaS and subscription ecommerce -- software companies sell access to products via online self-serve checkout with optional sales assistance for larger accounts. B2B ecommerce increasingly uses hybrid models: self-serve for small accounts, sales-assisted for large accounts.
- How is B2B ecommerce different from B2C ecommerce?
- Key differences between B2B and B2C ecommerce: (1) pricing: B2B prices are often negotiated and account-specific (volume discounts, contract rates); B2C prices are fixed and public; (2) payment: B2B typically offers credit terms (net 30/60/90) and invoice payment; B2C is immediate card or digital payment; (3) order complexity: B2B involves purchase orders, multi-line items, and approval workflows; B2C is a simple add-to-cart flow; (4) buyers per account: B2B accounts often have multiple users with different roles (buyer, approver, viewer); B2C is typically one consumer; (5) relationship: B2B ecommerce relationships are recurring (the same buyer reorders monthly); B2C can be one-time; (6) volume: B2B orders are typically larger and less frequent; B2C orders are smaller and more frequent.
- What are the biggest B2B ecommerce platforms in India?
- The biggest B2B ecommerce platforms in India are: IndiaMART (largest India B2B marketplace, 170M+ registered buyers, strong in manufacturing, industrial goods, and raw materials); Udaan (B2B trade platform focused on FMCG, pharmacy, and electronics distribution, connecting brands with kirana retailers and pharmacies); Amazon Business India (corporate procurement marketplace with GST-compliant invoicing, multi-user accounts, and bulk pricing); TradeIndia (B2B marketplace, strong in industrial goods and exports); OFB (OfficeFabric/OfficePlus, corporate office supplies). For direct B2B ecommerce platforms used by Indian companies to run their own portals: Shopify Plus, Magento, and India-specific platforms like StoreHippo and Browntape.