Top 10+ eCommerce App Development Companies in Seattle, WA | eCommerce App Developers Seattle 2026
Last Updated 05th September 2026 | Category: Top App Development FirmsThe List of Top 10+ eCommerce App Development Companies In Seattle, Washington | Top eCommerce App Developers Seattle, WA September 2026
1. Hyperlink InfoSystem
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Details
| Founded: | 2011 |
|---|---|
| Hourly Rates: | < $25 |
| Employees: | 1000+ |
| Avg. Project Cost: | $5,000,000+ |
| Ratings: |
5.0
497 Reviews
|
Since 2011, Hyperlink InfoSystem has operated as a technology services provider. Hyperlink InfoSystem focuses on Mobile App Development. Hyperlink InfoSystem employs 1000+ people. Clients can expect pricing around < $25/hr, with projects averaging about $100,000. Overall, Hyperlink InfoSystem is one of the options worth shortlisting for a technology project.
Details
| Founded: | 2005 |
|---|---|
| Hourly Rates: | $50 - $99 |
| Employees: | 10 - 49 |
| Avg. Project Cost: | $2,500,000+ |
| Ratings: |
4.3
8 Reviews
|
Redwerk has been in business since 2005, delivering technology projects for clients. Their core services include Mobile App Development and Custom Software Development. Its team includes 10 - 49 specialists working across design, development, and delivery. Clients can expect pricing around $50 - $99/hr, with projects averaging about $10,000. This gives a quick snapshot of what to expect when working with Redwerk.
Details
| Founded: | 2001 |
|---|---|
| Hourly Rates: | $50 - $99 |
| Employees: | 500 - 999 |
| Avg. Project Cost: | $10,000+ |
| Ratings: |
4.7
7 Reviews
|
MentorMate has been in business since 2001, delivering technology projects for clients. Their core services include Custom Software Development. With 50 - 249 people on staff, MentorMate can take on projects of varying size. Typical hourly rates run around $50 - $99/hr, with an average project cost near $2,500,000. Overall, MentorMate is one of the options worth shortlisting for a technology project.
Details
| Founded: | 2010 |
|---|---|
| Hourly Rates: | $100 - $149 |
| Employees: | 2 - 9 |
| Avg. Project Cost: | $10,000+ |
| Ratings: |
4.3
7 Reviews
|
Agency Labs has been in business since 2010, delivering technology projects for clients. The company's main offerings are Web Development and Mobile App Development. The company operates with a team of 2 - 9 professionals. Clients can expect pricing around $100 - $149/hr, with projects averaging about $2,500,000. Overall, Agency Labs is one of the options worth shortlisting for a technology project.
Details
| Founded: | 2006 |
|---|---|
| Hourly Rates: | $50 - $99 |
| Employees: | 10 - 49 |
| Avg. Project Cost: | $50,000+ |
| Ratings: |
4.2
7 Reviews
|
Since 2006, HyperTrends Global Inc. has operated as a technology services provider. HyperTrends Global Inc. works across web, mobile, and custom software development. Its team includes 10 - 49 specialists working across design, development, and delivery. Clients can expect pricing around $50 - $99/hr, with projects averaging about $5,000,000. This profile is a starting point — reach out to HyperTrends Global Inc. directly to discuss project specifics.
Details
| Founded: | 1994 |
|---|---|
| Hourly Rates: | N/A |
| Employees: | N/A |
| Avg. Project Cost: | $10,000+ |
| Ratings: | No reviews yet |
Choice Information Services, Inc. has been in business since 1994, delivering technology projects for clients. Their core services include IT Consulting. Projects with this company average about $50,000. This profile is a starting point — reach out to Choice Information Services, Inc. directly to discuss project specifics.
Details
| Founded: | 1996 |
|---|---|
| Hourly Rates: | N/A |
| Employees: | N/A |
| Avg. Project Cost: | $5,000,000+ |
| Ratings: |
4.3
7 Reviews
|
Tag New Media works with clients to plan, build, and ship digital products. Tag New Media focuses on Mobile App Development. The average project on record costs around $10,000. This gives a quick snapshot of what to expect when working with Tag New Media.
Details
| Founded: | 2010 |
|---|---|
| Hourly Rates: | $100 - $149 |
| Employees: | 10 - 49 |
| Avg. Project Cost: | $10,000+ |
| Ratings: |
4.8
6 Reviews
|
Since 2010, Dogfish Software has operated as a technology services provider. Dogfish Software works across web, mobile, and custom software development. Dogfish Software employs 10 - 49 people. Clients can expect pricing around $100 - $149/hr, with projects averaging about $5,000,000. Overall, Dogfish Software is one of the options worth shortlisting for a technology project.
Details
| Founded: | 2014 |
|---|---|
| Hourly Rates: | $100 - $149 |
| Employees: | 10 - 49 |
| Avg. Project Cost: | $10,000+ |
| Ratings: |
4.7
8 Reviews
|
Since 2014, DevSquad has operated as a technology services provider. DevSquad focuses on Mobile App Development. Its team includes 10 - 49 specialists working across design, development, and delivery. Typical hourly rates run around $100 - $149/hr, with an average project cost near $2,500,000. These details offer a useful starting point when evaluating DevSquad.
Details
| Founded: | 2008 |
|---|---|
| Hourly Rates: | $100 - $149 |
| Employees: | 2 - 9 |
| Avg. Project Cost: | $25,000+ |
| Ratings: |
4.4
8 Reviews
|
Peaktwo is a technology company founded in 2008. Their core services include Custom Software Development. With 2 - 9 people on staff, Peaktwo can take on projects of varying size. Typical hourly rates run around $100 - $149/hr, with an average project cost near $50,000. Overall, Peaktwo is one of the options worth shortlisting for a technology project.
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The line items that push a App Development project in Seattle over budget are rarely the obvious ones — it's usually the number of third-party integrations, how deep the testing needs to go, and what happens after launch in terms of support and maintenance. Compliance and security work, if your project needs it, adds a real chunk on top. A proper discovery conversation with your App Development partner in Seattle should surface most of this before you sign anything.
The firms that rank well among App Development companies in Seattle typically have verifiable client references, a track record of finished (not just started) projects, relevant certifications, and consistently positive feedback across multiple engagements — not just one standout case study. Self-reported claims with nothing to back them up carry little weight here; documented outcomes do.
Skip past the summary and go straight to the portfolio examples, the full text of client reviews (not just the star rating), and how long the company has been operating. Reviews that mention specific, measurable results — a faster checkout flow, a successful migration, fewer support tickets — tell you far more than generic praise. It's also worth checking whether the App Development firm in Seattle responds to reviews at all, since that habit tends to mirror how they handle feedback during an actual project.
A good App Development company in Seattle won't make you ask for updates — you should have standing access to a task board, regular written progress notes, and visibility into a staging environment where you can see the work as it's built, not just at the end of a sprint. If a firm treats this kind of access as an inconvenience rather than standard practice, take that seriously before signing anything longer-term.
A good App Development company in Seattle doesn't stop at shipping features — the strongest ones bring analytics setup, structured A/B testing, and performance tuning into the conversation from early on, so the product keeps improving after launch instead of sitting static. Treated this way, a App Development partner in Seattle becomes an ongoing part of how the business grows rather than a vendor you call once and don't hear from again.
Listen to what they ask about before they start talking solutions. A App Development company in Seattle genuinely focused on outcomes will want to understand your users, your revenue model, and your competitors before proposing anything technical. One that jumps straight to a timeline and a quote without asking those questions is optimizing for winning the deal, not for whether the thing they build actually works for your business.
Platforms like Clutch and GoodFirms are a good starting point, since they require some independent validation of the work described. A strong case study from a App Development company in Seattle spells out the original problem, what was actually built, and a measurable result — not just a screenshot and a paragraph of praise. Match case studies to your own industry and scale wherever you can; a great result in an unrelated space tells you less than it seems to.
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