Top 3 Ecommerce Design Agencies in Los Angeles for 2026

Ecommerce design gets judged by a number most other categories on this site don't have to answer to: the conversion rate. A beautiful store that doesn't sell is a failed project regardless of how the case study photographs, which is why the strongest ecommerce agencies think about checkout friction and page load time as design problems, not afterthoughts handed to a developer. The three agencies below have all built and optimized real ecommerce stores for named retail clients, not just added "ecommerce" to a services list.

We're two short of the five-agency minimum we hold elsewhere on this site. We'd rather list three agencies with genuine, verifiable ecommerce work than pad the page with more that just checked the box.

Best for
Start with what your store needs.

The deliverable is clearly "a working store."

WeberousShopify Plus stores for Disney, Amazon and Jeffree Star Cosmetics, with ongoing support.
Coalition TechnologiesStores engineered to rank and convert, built and grown by one team.

The 3 agencies
Full profiles, in list order.

Weberous

Best for: A brand that needs a working, converting store, not just a brand strategy deck.

Weberous has built ecommerce sites for major national retailers without losing the smaller DTC accounts it earns — proof its process holds up at both ends of the client-size spectrum, from a global entertainment company to an independent cosmetics brand.

Website: weberous.com
Clients: Disney, Amazon, Jeffree Star Cosmetics
Model / Platform / Where: Shopify Plus ecommerce design and development; Los Angeles, CA (Wilshire Boulevard)
Budget signal: Positioned for a full store build with ongoing support, not a one-off template swap.
Skip if: You need brand strategy with no development scope attached — Weberous's center of gravity is the build itself.

Coalition Technologies

Best for: A retail brand that wants the store, the SEO, and the paid media handled by one team instead of three separate vendors.

Coalition Technologies holds Shopify Plus and BigCommerce Elite partner status, credentials that point to where the firm's real strength sits — stores engineered to rank and convert, with growth marketing bundled into the same engagement as the build rather than sold as a separate line item.

Website: coalitiontechnologies.com
Clients: Named case studies available on request; agency-level Shopify Plus and BigCommerce Elite partner status verified independently
Model / Platform / Where: Ecommerce web design, development, and SEO; Los Angeles, CA
Budget signal: Bundled retainer pricing built around ongoing growth work, not a single fixed-scope launch.
Skip if: You just need a one-time store build with no ongoing SEO or marketing component.

Cerebral Studio

Best for: An ecommerce brand with a specific, measurable conversion problem — a checkout that leaks sales, a confusing product page — rather than a full store rebuild.

Cerebral Studio filters design decisions through behavioral psychology before aesthetics, aimed at ecommerce products where a single confusing step in the purchase flow costs measurable revenue — a narrower, more testable claim than most agencies make about "improving the user experience."

Website: cerebralstudio.design
Clients: Case studies available on request; independently verified client value attribution above $500M
Model / Platform / Where: UX research and UI/UX design for ecommerce and B2B products; Los Angeles, CA
Budget signal: Accessible for a single, focused UX audit; scales up for a larger engagement.
Skip if: You need a full store built from scratch — Cerebral Studio's specialty is diagnosing and fixing an existing flow, not building the platform itself.

Comparison
The facts side by side.

Facts for all 3 agencies: where, ecommerce focus, platforms, named clients, budget signal
#	Agency	Where	Ecommerce focus	Platforms	Named clients	Budget signal
1	Weberous	Los Angeles (Wilshire Blvd)	Store design & development	Shopify Plus	Disney, Amazon, Jeffree Star Cosmetics	Full build + ongoing support
2	Coalition Technologies	Los Angeles	Store design, development & SEO	Shopify Plus, BigCommerce Elite	On request	Bundled growth retainer
3	Cerebral Studio	Los Angeles	Behavioral UX for conversion	Not stated	On request ($500M+ client value verified)	Accessible audit, scales up

What each agency covers in ecommerce A filled dot means a named client, partner status or a focus stated in the agency's profile on this page. An empty dot means none is named, not that the agency can't do the work.

Agency	Full store build	Shopify Plus	BigCommerce	SEO & paid media	Conversion fixes	Ongoing support
Weberous
Coalition Technologiesclients on request
Cerebral Studioclients on request
Agencies	2	2	1	1	1	2

What to Weigh in Ecommerce Specifically

Scope is the real dividing line here, more than budget alone. Weberous and Coalition Technologies both specialize in the build itself — getting a store live, optimized, and ranking — which makes them the right call when the deliverable is clearly "a working store." Cerebral Studio is the opposite bet: a narrow, diagnostic engagement aimed at one broken part of an existing flow, useful when you already have a store and know exactly what's underperforming.

We built this list from public portfolios and named clients, and no agency paid for its position.

FAQ

What makes ecommerce design different from a general web design project?

The success metric is conversion, not just visual polish. An ecommerce-focused agency thinks about checkout friction, page load speed, and product discovery as core design problems — Coalition Technologies and Weberous both build their process around exactly that.

Do I need a Shopify specialist, or does a general web agency work for an online store?

A Shopify or BigCommerce specialist like Weberous or Coalition Technologies will move faster and avoid platform-specific pitfalls if you've already committed to that platform. A general studio makes more sense if your commerce needs are simpler or you haven't picked a platform yet.

My store already exists — do I need a full rebuild, or can I fix specific problems?

If you know exactly what's underperforming — a checkout step, a confusing product page — a focused audit from a studio like Cerebral Studio is often faster and cheaper than a full rebuild, and lets you test whether the fix actually moves the number before committing to more.

Should I hire a local LA agency, or does remote work for ecommerce design?

Remote works fine for ecommerce design and development. What matters more is whether the agency has shipped in your specific platform and product category.