An affiliate network is an intermediary platform that serves as a marketplace connecting businesses that want to promote their products (merchants or advertisers) with individuals or companies who can drive traffic and sales (affiliates or publishers). The network provides the technological infrastructure—tracking, reporting, payment processing—and handles the logistics of running affiliate partnerships at scale.

How Affiliate Networks Work

Affiliate networks operate as a hub between merchants and affiliates. Merchants join the network, list their affiliate programs with commission terms, and provide promotional materials. Affiliates browse the network's marketplace, find programs that match their audience, and apply to join. Once approved, affiliates receive tracking links from the network and begin promoting the merchant's products.

The network's tracking system records all clicks and conversions, handles commission calculations, and consolidates payments. Rather than paying each merchant individually, affiliates receive a single payment from the network for all their earnings across multiple programs.

Major Affiliate Networks

• ShareASale: One of the largest networks with thousands of merchants across many industries.
• CJ Affiliate (Commission Junction): A premium network popular with enterprise brands and large publishers.
• Impact: A partnership automation platform used by major brands for affiliate and influencer programs.
• Rakuten Advertising: A global network with strong international presence.
• PartnerStack: Focused on B2B SaaS affiliate and partner programs.

Affiliate Networks vs. In-House Programs

Businesses can choose between joining an affiliate network or running an in-house affiliate program using dedicated software. Each approach has trade-offs:

• Networks provide instant access to a large pool of affiliates, handle payments and tax reporting, and offer established tracking infrastructure. However, they charge fees (often 20–30% on top of commissions), limit your control over affiliate relationships, and may list your competitors alongside your program.
• In-house programs using software like GrowSurf give you complete control over branding, affiliate relationships, commission structures, and data. You avoid network fees and own your affiliate relationships directly. The trade-off is that you must recruit affiliates yourself.

When to Use an Affiliate Network

Affiliate networks are useful when you want quick access to a large affiliate base and prefer to outsource program logistics. They work well for e-commerce companies with mass-market products. However, for SaaS companies, tech startups, and businesses that want tight control over their brand and affiliate experience, in-house programs typically deliver better results at lower cost.

Many successful companies start with an in-house program and later supplement it with network listings, or vice versa. The right approach depends on your growth stage, resources, and strategic priorities.