Best checkout optimization consultants in the US
In this guide
Checkout optimization sits at the uncomfortable intersection of customer research, platform constraints, payment operations, design, development, and experimentation. A specialist should be able to diagnose where buyers abandon, distinguish cart problems from payment problems, and ship changes without breaking the purchase path. Shopify Plus dominates this list because it has the deepest public specialist bench, but several providers work more broadly.
This list covers consultants, specialist agencies, and one research institute with a named checkout offer; it excludes general ecommerce firms that mention conversion without showing checkout-specific work.
Comparison table
Scroll to compare all columns. Select a provider name to read its profile.
| Provider | Type | Best for | Location | Known engagement details |
|---|---|---|---|---|
| CONVERTIBLES | Agency | Shopify cart-to-checkout testing | Serves US brands remotely; home base not published | Checkout optimization programs by proposal |
| David Spiegel | Independent consultant | Product-side review of CRO and monetization decisions | San Francisco; works nationally | Consulting scope and availability discussed directly |
| Optimize Goal | Agency | Senior-led Shopify checkout programs | Serves US and UK brands remotely | $2,000–$10,000 a month; first test offered free |
| Shero Commerce | Agency | Shopify Checkout Extensibility | Serves US brands remotely | CRO and checkout implementation by proposal |
| Kaspian Fuad | Independent consultant | Shopify CRO with Liquid implementation | Serves remotely; home base not published | Audits $500–$5,000; retainers from $3,000 a month |
| Ethercycle | Expert-led boutique | Shopify Plus CRO sprints | Chicago area; works nationally | Sprints and consulting by proposal |
| Invesp | Agency | Checkout inside a full-funnel CRO program | Chicago; works nationally | Managed programs, platform, and training |
| Checkout Experts | Agency | Checkout UX, gateways, and mobile flows | Serves remotely; home base not published | Checkout-specific projects by proposal |
| 7SEA Marketing | Agency | Checkout plus cart recovery | Serves multiple regions remotely | Fixed quote after a free audit |
| eCeez | Agency | Ecommerce cart and checkout improvements | Serves remotely; home base not published | CRO projects by proposal |
| Electric Eye | Agency | Shopify design, development, and optimization | Columbus, Ohio; works nationally | Projects and retainers by proposal |
| Soda Web Media | Agency | Shopify Partner CRO | Serves remotely; home base not published | Shopify CRO projects by proposal |
| Baymard Institute | Research institute | Checkout usability diagnosis | Denmark; serves US teams remotely | Combined desktop and mobile checkout audit listed at $7,000 |
The specialists
1. CONVERTIBLES
CONVERTIBLES focuses on the Shopify purchase path: cart drawer, cart page, cart-to-checkout handoff, checkout extensibility, and post-purchase. It is a strong fit for established DTC brands that have enough order volume to test changes and want a checkout-specific agency rather than a general store redesign.
2. David Spiegel
David Spiegel is a San Francisco technical product manager, builder, and independent consultant. His public consulting offer covers CRO, onboarding, and monetization, which is relevant when a team needs product judgment around a subscription or purchase flow before commissioning specialized Shopify or payment implementation.
3. Optimize Goal
Optimize Goal runs senior-led Shopify CRO programs with cart and checkout named in the service. Its public range of $2,000–$10,000 a month and first-test offer make it one of the easier options to screen for budget and working style.
4. Shero Commerce
Shero Commerce combines Shopify CRO with Checkout Extensibility work. It fits merchants that need an agency able to move from funnel diagnosis into platform-specific checkout changes.
5. Kaspian Fuad
Kaspian Fuad is an independent Shopify CRO consultant and Liquid developer who explicitly includes checkout optimization. Published pricing spans $500–$5,000 for audits and retainers from $3,000 a month, which suits merchants wanting direct access to the person doing the analysis and implementation.
6. Ethercycle
Kurt Elster leads Ethercycle, a Chicago-area Shopify Plus boutique offering CRO sprints alongside theme, replatforming, and lifecycle work. It is a good match when checkout is one part of a technically connected Shopify project.
7. Invesp
Invesp is a Chicago conversion firm operating since 2006. Checkout sits inside its broader research and testing programs, making it more appropriate for a company with leaks across the funnel than for a narrowly scoped gateway change.
8. Checkout Experts
Checkout Experts is devoted to checkout UX, payment-gateway integration, mobile design, and single-page flows across ecommerce platforms. That narrow focus is useful for a defined purchase-path problem, though buyers should ask which platforms and payment stacks the assigned team handles most often.
9. 7SEA Marketing
7SEA Marketing pairs checkout review with Klaviyo and SMS cart-recovery work. Its fixed-quote process begins with a free audit, which fits stores that need both on-site fixes and recovery after abandonment.
10. eCeez
eCeez lists cart and checkout among its ecommerce conversion levers. It is best evaluated as a broader CRO agency with explicit checkout coverage rather than a checkout-only specialist.
11. Electric Eye
Electric Eye is a Columbus Shopify design, development, and optimization team. It suits merchants whose checkout issues are tied to theme code, storefront UX, or a wider technical backlog.
12. Soda Web Media
Soda Web Media is a Shopify Partner agency that names checkout flow within its CRO service. Buyers should use the proposal to establish how much of the work is research and testing versus general store development.
13. Baymard Institute
Baymard Institute turns its large checkout-usability research library into a paid expert audit. The combined desktop and mobile audit is listed at $7,000; it is a diagnostic purchase, so implementation remains with the merchant or another partner.
Buyer guide
Begin by naming the failing step. Cart abandonment, account creation, shipping surprises, payment declines, address entry, mobile friction, and post-purchase confusion have different causes and may require different specialists.
Platform constraints matter. On Shopify, ask about Checkout Extensibility, Functions, Shop Pay, third-party apps, and the permissions available on your plan. For other platforms, confirm recent work with your exact stack, payment processor, tax setup, subscriptions, and international markets.
Insist on a measurement plan that reaches beyond checkout completion. A change can raise completion while hurting average order value, fraud, refunds, subscription quality, or support load. The proposal should name the guardrail metrics and who monitors them.
Related specialties
Landing-page CRO agencies improve the acquisition surface before a shopper reaches the cart. Conversion consultants diagnose broader funnel problems. Monetization consultants focus on pricing and packaging, while ecommerce development agencies are better for migrations and large platform rebuilds.
FAQs
What is included in checkout optimization?
It can cover cart UX, guest checkout, address and form design, shipping and tax communication, payment methods, trust cues, error handling, mobile behavior, recovery, and post-purchase steps. The exact scope should follow the observed abandonment point.
Do I need Shopify Plus?
Not for every improvement. Plus gives greater checkout control, but many gains come from clearer cart behavior, payment options, shipping communication, app cleanup, and better use of the customization Shopify already permits.
Should checkout be A/B tested?
When traffic and tooling allow it, yes. Lower-volume stores may need usability research, sequential releases, and careful before-and-after monitoring instead of forcing an underpowered test.
How should payment failures be handled?
Separate UX friction from processor declines and fraud rules. A CRO specialist may identify the pattern, but payment operations, engineering, and the processor may need to solve it together.
What data should I prepare?
Bring step-level completion by device, payment-method mix, decline codes, shipping and tax data, discount usage, average order value, refunds, subscriptions, support themes, and recordings where privacy rules allow them.