4 Best Growth Partners for Ecommerce and SaaS in 2026

Intro

Growth rarely comes from one tool or one agency. Online stores need sites that convert and ads that pay back. B2B software companies need distribution channels that don't depend on cold outreach. This list covers four options, two for ecommerce and two for partner-led growth, so you can match the right one to your next move.

1. CREATE8: Best for Shopify Web Design and Ecommerce Growth

CREATE8 is a Stockport-based agency that describes itself as a Shopify and ecommerce growth agency. It works with DTC and B2B brands across the UK and globally. It combines Shopify web design, paid marketing and branding under one roof.

The agency's pitch is a connected approach to acquisition, conversion and retention, on the logic that growth stalls when any one of them is out of step. It claims more than ten years of experience and over 500 brands helped to grow worldwide. Its client list includes names such as Tisserand and Per4m Nutrition, and it has won awards for UI and UX work.

Best for: Brands that want design, development and paid ads handled by one team rather than three suppliers.

Worth knowing: It also builds on WordPress, which helps if you aren't committed to Shopify.

2. Kiflo: Best for Turning Partners Into Pipeline

Kiflo is an AI-ready PRM built around partner revenue rather than partner admin. It connects your partner ecosystem to target accounts, co-selling, and closed revenue.

Many partnership teams run on separate tools from sales, so reps end up selling cold into accounts a partner could open. Kiflo maps your partners against your target accounts and open deals. It then suggests the next move, such as requesting an intro or starting a co-sell. It also covers the standard PRM needs: onboarding, partner portals, revenue tracking, and automated commissions.

You can run Kiflo from Claude, ChatGPT, or any MCP-compatible AI assistant. Ask which partners have gone quiet, which deals are stuck, or what partners brought in this quarter, and Kiflo’s data and permissions do the work. It integrates natively with HubSpot and Salesforce, and uses Stripe and Chargebee revenue data for commissions. Trusted by 450+ partnership teams.

Best for: B2B partnership and sales leaders on HubSpot or Salesforce who want to prove partner-sourced and partner-influenced revenue without adding headcount.

Worth knowing: The account-mapping feature is one of the newest parts of the platform, so ask for a live demo using your own target accounts.

3. PartnerStack: Best for Large Affiliate and Referral Programmes

PartnerStack is one of the best-known names in partner ecosystem software. It was founded in 2015 and helps SaaS companies recruit, manage and scale affiliate, referral and reseller programmes.

Its biggest draw is the marketplace. PartnerStack describes a curated ecosystem where thousands of active partners discover SaaS programmes and apply to them. That gives new programmes a head start on recruitment. The platform also automates commission calculations and payments, so vendors can pay multiple partner types through a single monthly invoice.

Cost is the main consideration. Published pricing starts at $1,000 per month, paid annually, on the Launch plan. Larger plans are quoted individually.

Best for: B2B software companies that want a marketplace of ready-made affiliate and referral partners.

Worth knowing: Kiflo and PartnerStack overlap on partner management, but their emphases differ. PartnerStack leans towards recruitment and payouts, while Kiflo focuses on connecting partners to your own target accounts.

4. Eastside Co: Best for Established Shopify Plus Builds

Back on the ecommerce side, Eastside Co is a good comparison point for CREATE8. It is described as one of the UK's longest-established Shopify agencies, operating since 2012. Industry roundups also note that it was one of the first Shopify Plus Partners in the country.

That history suits brands with complex needs, such as replatforming, enterprise integrations or multi-market stores. Agencies of this type tend to fit larger budgets and longer projects.

Best for: Established retailers planning a major Shopify Plus migration or rebuild.

Worth knowing: Smaller brands may find a boutique agency offers more hands-on attention for the same spend.

How to Choose

If you need...	Start with
A Shopify site plus paid ads from one team	CREATE8
Partners tied directly to your pipeline	Kiflo
A marketplace of ready-made affiliates	PartnerStack
A long-established Shopify Plus specialist	Eastside Co

A few questions will sharpen the decision:

• What is your growth bottleneck? Weak conversion points to a site rebuild, a lack of traffic points to paid marketing, and a lack of warm introductions points to partnerships.
• What does your current stack look like? Partner tools are only as useful as their CRM integration, so check HubSpot or Salesforce support first.
• How much support will you need? Agencies vary from project-based to long-term retainers, and software platforms vary in how much onboarding they offer.

Final Thoughts

Ecommerce growth and partner-led growth look different, but both reward the same habit: connecting the parts of your funnel instead of running them in silos. CREATE8 and Eastside Co approach that through the storefront and its marketing. Kiflo and PartnerStack approach it through the relationships around your product.

Shortlist one or two options from each category that match your situation, ask for demos or case studies, and judge them on how well they fit your setup rather than on size alone. Pricing, features and client lists change often, so confirm the details directly with each provider before you commit.