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Top Software Development Companies in Seattle

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Looking for the best software development company in Seattle? UpCity compiles authentic reviews, company descriptions, project examples, and more into a list for you to review. Feel confident you're finding the top provider for your business.

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17 Provider(s)Last Updated: April 19, 2025
UpCity Silver Sponsor
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I'm the self-funding founder of Willowfinch and have been working with Lunarbyte for nearly 3 years. My app is a data intelligence app and so not quite as simple as a sales site. The algorithms are complex and other developers / orgs had quite a difficult time grasping the innerworkings. They have consistently worked within my limited budget and advised me on best practices. While I coded the back-end algorithms on the cloud platform & architecture I'm comfortable with, they accommodated that & created a seamless experience. Their pricing is reasonable and they work very hard to give me accurate quotes for work so we can prioritize. I love working with them.
Services
Software DevelopmentJava DevelopmentMobile App DevelopmentView all
Business Summary:
Best in class software and product development. We are a passionate, driven and talented team of developers based in Seattle, WA. We work with startups and enterprise companies to craft and launch big ideas.
Industry(s):
Business Services
Business Details
Businesses provider works with
Small, Medium, Enterprise
Provider's minimum per-project cost
$10,000 or more
Provider's minimum retainer cost
$5,000 or more, monthly
UpCity Silver Sponsor
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Overall experience with New Normal has been great. We started building an application for our new business in 2018 and have used them ever since because of their flexibility, and the "partnership" we've forged. Our company is still too small to manage/create/hire an internal software development dept, so NN continues to fit the bill.
Services
Software DevelopmentJava DevelopmentMobile App DevelopmentView all
Business Summary:
New Normal is your Seattle-based development and UX solution. We’ve delivered custom software for clients in eCommerce, aerospace, fin tech, travel, health care, and manufacturing. Let's talk about what you need to do.
Industry(s):
Finance | Government | SaaS | Restaurant | Real Estate | Non-Profit
Business Details
Businesses provider works with
Small, Medium, Enterprise
Provider's minimum per-project cost
$25,000 or more
Provider's minimum retainer cost
$5,000 or more, monthly
UpCity Silver Sponsor
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Services
Software DevelopmentWordPress DevelopmentMobile App DevelopmentView all
Business Summary:
Montana Banana designs and develops Internet strategies for corporate, e-commerce and entertainment based clients. We have offices in Seattle, WA and Los Angeles, CA but design products for clients around the world.
Industry(s):
SaaS | E-Commerce | Business Services
Business Details
Businesses provider works with
Small, Medium
Provider's minimum per-project cost
$5,000 or more
Provider's minimum retainer cost
Less than $500, monthly
UpCity Engaged Partner icon
UpCity National Excellence Award Winner - An illustration of a thropy with a star.
UpCity Local Excellence Award Winner - An illustration of a certificate.
Hands down the best digital marketing group that has helped our business grow and succeed. So I found them out through google searches and read each review and it called out my attention how they would respond. Going forward I contacted them in a panic after having tried myself to do my husbands hair salon marketing and failed. (We we’re a month away from loosing everything we had invested in; it was bad). I didn’t know what else to do and they have literally guided me through out the entire process. I was originally looking for google marketing services and have ended up doing everything with them. I have asked every stupid annoying desperate question out and around the book repeatedly and they have always been super nice, professional and re explained the process with me time and time again. I’ve been working with Laura and will continue to work with Laura because they are the ones who have helped our business grow and maintain from where we were. The services are outstanding. The results show and they know what their doing. They’re not here to rob you or make false claims about anything. They are extremely transparent with all work and communication and they will give you the honest of honest opinion of how things should be done. Thank you so much Laura for everything, this is for the long hall. Don’t even think twice and just call them. Yoj won’t be disappointed and your business will grow with them on your side. Thank you so so much 🙏
Services
WooCommerce DevelopmentReputation ManagementArtificial Intelligence(AI)View all
Business Summary:
Partner with 1111 Media Group and start generating more sales, leads, and revenue for your business. We're a Full-Service, Award-Winning Digital Marketing Agency specializing in growing businesses through web design, technology, social media, and ROI-driven marketing. Se habla español!
Industry(s):
Dental | Healthcare | Attorneys | Hospitality | Business Services
Business Details
Businesses provider works with
Small, Medium, Enterprise
Provider's minimum per-project cost
$1,000 or more
Provider's minimum retainer cost
$1,500 or more, monthly
UpCity Local Excellence Award Winner - An illustration of a certificate.
I had a great experience working with MobCoder and would definitely work with them again in the future. They have significant experience with mobile app development, and were extremely effective in delivering on schedule. Marc and Girijesh were both quick to get back to us with any information we needed and communication was seamless. We were able to bring our app to the market in under three months with MobCoder's help and ability to pivot quickly as required. They're a good team that's easy to work with and I'd highly recommend them!
Services
Software Development
Business Summary:
We are the leading mobile & web app development company in Seattle, US, and exploring new avenues in the app ecosystem by integrating cognitive technologies like Machine Learning, Artificial Intelligence, IoT, Augmented Reality & others in the development process to deliver peerless user experience
Industry(s):
Startups | Sports | SaaS | Retail | Restaurant | Real Estate
Business Details
Businesses provider works with
Small, Medium, Enterprise
Provider's minimum per-project cost
$10,000 or more
UpCity National Excellence Award Winner - An illustration of a thropy with a star.
UpCity Local Excellence Award Winner - An illustration of a certificate.
Amazing. First of all the office is right out of the 80/90's and in itself is really amazing with old back stage passes from concerts of the 80's and 90's. There is even an amp once owned by Jimi Hendrix in the lobby of the office. They have these old lava lamps from the 70's and a lot of original route 66 stuff all lit up-including the actual neon sign from the route 66 motel in Albuquerque but its all blended in with high tech stuff. The Project managers have set up an open area with HD tv's and monitors that students from the UW can use to study as long as they are in a tech related study program so its kind of a cool atmosphere but we ere most impressed with the ex Google guys and the Microsoft guys running around the office. We felt totally comfortable with Seattle Software Developers from the get go. The real deal. My wife and I are shareholders of a high-end clothing retailer based in Seattle with stores world wide and we needed an internal app for sales associates to use on the floor for checking inventory and ordering it on the fly shipped to our consumers and they came in under deadline with an outstanding app.
Services
Software DevelopmentDrupal DevelopmentWebsite Development
Business Summary:
Seattle Software Developers started with website #202 on the internet and does it all from Custom applications to website design.
Industry(s):
Business Services
Business Details
Businesses provider works with
Small
Provider's minimum retainer cost
$2,000 or more, monthly

Chop Dawg

Washington, DC, US
4.6 | 7 reviews
After reaching out to ChopDawg and some other shops, we knew Chop Dawg was the right choice for us because of their expertise, upfront pricing and timeline, and their clear communication style. We met every 2 weeks during the build via video conference as well as more frequent email communication. ChopDawg did a great job of explaining the process and informing us of complications they could see before they started developing the product. Their technical knowledge combined with a true desire to understand our product and how best to build it was a real selling point. They have been great to work with during the build process and we are happy with our product. We would highly recommend them and look forward to working with them in the future.
Services
WooCommerce DevelopmentAndroid App DevelopmentSoftware DevelopmentView all
Business Summary:
Since 2009, we've helped launch 350+ next-generation apps for startups, first-time entrepreneurs, growing companies, and non-profits around the world. When it comes to working with Chop Dawg, Think Partner, Not Agency.
Industry(s):
Business Services | E-Commerce | Education | Entertainment | Fitness | Startups
Business Details
Businesses provider works with
Small, Medium, Enterprise
Provider's minimum per-project cost
$10,000 or more
Provider's minimum retainer cost
$5,000 or more, monthly
UpCity Engaged Partner icon
Excellent service, easy to communicate, in time deliveries
Services
Software Development
Business Summary:
Sigma Software is a team of 2,000 IT experts across the USA, Sweden, UK, Canada, Israel, Colombia, Mexico, UAE, Australia, Austria, Poland, Ukraine, and more. We act as a strategic software development partner for enterprises, product houses, and start-ups in various industries around the world.
Industry(s):
Finance | Education | Startups | E-Commerce | SaaS | Automotive
Business Details
Businesses provider works with
Small, Medium, Enterprise
Provider's minimum per-project cost
$10,000 or more

Zazz

Seattle, WA, US
Services
Software Development
Business Summary:
Zazz equips your business digitally with mobile, web & custom software development solutions, helping you stay relevant in the dynamic market filled with growing customer needs.
Industry(s):
Hospitality | Real Estate | Retail | Government | Fitness | Finance
Business Details
Businesses provider works with
Small, Medium, Enterprise
Provider's minimum per-project cost
$25,000 or more
Provider's minimum retainer cost
$1,500 or more, monthly

Odins3

Bothell, WA, US
Services
Software Development
Business Summary:
Top ranked Seattle based software development company. We provide a feature rich small business CRM, premium Seattle web design, and custom tailored business solutions.
Industry(s):
Business Services
Business Details
Businesses provider works with
Small, Medium
Services
Software DevelopmentWebsite Development
Business Summary:
PSPinc makes it easy for businesses like yours to get online and be successful by providing complete technology solutions for all your web and email hosting needs. Our website designers, software developers and library of original software help your co...
Industry(s):
Business Services
Business Details
Businesses provider works with
Small
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Fresh Consulting

Bellevue, WA, US
Services
Software DevelopmentMobile App DevelopmentUX DesignView all
Business Summary:
UX design, full stack development, and team integration for websites, web apps, mobile apps, and enterprise systems.
Industry(s):
Business Services
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Globant

Seattle, WA, US
Services
Cloud ConsultingSoftware DevelopmentDigital MarketingView all
Business Summary:
L4 Digital, a Globant company, is a leading digital product agency that creates innovative and meaningful experiences to engage people across every screen. The company offers the digital product consulting, design, development, and quality assurance se...
Industry(s):
Business Services
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Helios Solutions

Seattle, WA, US
Services
Software DevelopmentMagento Development
Business Summary:
Helios Solutions is a global technology company that provides end-to-end software development services to help businesses transform for the digital era.
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Luxoft

Kirkland, WA, US
Services
Software Development
Business Summary:
Luxoft, a DXC Technology Company, is a digital strategy and software engineering firm, with more than 12,900 employees, 41 offices in 22 countries.
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