Find the top mobile app development companies in Washington that create high-performing and user-friendly apps to help businesses drive conversions. Use our practical tool to filter them by cost, team size and client reviews.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.

Design In DC
VerifiedVerified by the DesignRush team for authenticity and credibility.A Digital Agency For The Future
Design in DC engineers native and cross-platform apps that power businesses through prototyping, UI/UX design, m-commerce development, backend API development, QA, App Store submission, and optimization. Its impressive client portfolio includes Under Armour, the World Bank, and Virginia Tech...
Top Services:
- Web Development
- Web Design
- UI/UX Design
- Video Production
- Logo Design
- Show more
- Location
- Seattle, Washington
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $160/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 12 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDesign In DC Services
Data sourced from the agency's DesignRush profileConsumer Bankers Association Examit Summit Ridge Energy JFL Consulting Lateenz Solar Landscape Warfel Construction CiviClick Priovant Therapeutics Hilton
Design In DC Reviews & Testimonials

Web Design Review from Mackenzie Shriner
I contracted design in DC to build me a custom website. they were accommodating of my budget, very responsive, and gave good insight on layout, content and design. the process was very straightforward and the final product is great!

Web Design Review from Jo Maney
DDC has been an excellent partner since we engaged with them in 2023. The DDC team worked with us to completely redesign our website and work to provide ongoing digital marketing services. The DDC team has been responsive, proactive, and thorough with their work. They are also very transparent about how they operate and how much time special projects will require. We have referred DDC to several clients and partners thanks to their outstanding process and product. DDC is a very professional, creative, and well-organized team.

Web Design Review from Sapna Doshi, Ph.D.
My experience working with Design in DC was incredible. Everyone was friendly, approachable, and seemed to genuinely care about helping create the best possible website for my business. They were also invested in making sure the process was one in which I enjoyed and felt taken care of. The regular meetings made me feel like I was a priority and that progress was continually being made. I so appreciated the attention to detail in regards to the user experience. The collaboration in understanding my wishes and desires for the website and user experience was met with patience and paying attention to detail on my behalf. Not only were they taking my suggestions but offering their own to help me maximize the potential of my website. The design and functionality is more than what I could have imagined. I know, undoubtedly, that the work that Design in DC did for me will help my business grow. After wasting money in years past on website designers, I was worried I'd be doing hte same here. I was wrong. I don't think I'll ever need to search for another website designer group again. I would recommend this group to anyone I know. Thank you, Design in DC! It was an absolute pleasure working with all of you!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsPropel Your Business Forward
SlickDevs is a premier custom software development company specializing in transforming innovative ideas into robust, scalable applications. With a dedicated team of experts, we provide comprehensive solutions tailored to meet the unique needs of tech startups, mid-market companies, and enterprise...
Top Services:
- Mobile App Development
- Software Development
- Software Testing
- Blockchain
- IoT
- Show more
- Location
- Bellevue, Washington
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $100/hr
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSlickDigital Services
Data sourced from the agency's DesignRush profileOracle Snap Inc. Amazon Palo Alto Networks Airbnb Miami-Dade County

Chop Dawg
VerifiedVerified by the DesignRush team for authenticity and credibility.AI LeaderRecognized for strong visibility across AI-powered search and answer engines.+1Award WinnerRecipient of a Best Design Award for outstanding work.Meet The Partner Behind Your App's Success | Make It App'n!
Meet your award-winning app development team, dedicated to turning your vision into scalable and profitable digital apps and software...
Top Services:
- Mobile App Development
- Software Development
- Web Development
- eCommerce Development
- WordPress Website Design
- Show more
- Location
- Seattle, Washington
- Number of Employees
- Under 49
- Average Hourly Rate
- $99/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 52 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsChop Dawg Services
Data sourced from the agency's DesignRush profileAlpha Paw Big Brothers Big Sisters Choice Home Warranty City of Peachtree Corners, Georgia City of Philadelphia, Pennsylvania City of Springboro, Ohio CRBO FlynnO'Hara Hilton Innovative
Chop Dawg Reviews & Testimonials

Web Development Review from Jimmy Caldwell
Chop Dawg was the strongest development team I’ve worked with in 18 years of software implementation. They took our complex AI-powered senior placement platform and turned it into a functional marketplace with dashboards, business rules, CRM integration, and an AI assistant. The team listened, adapted, communicated often, and treated our vision with real care. The handoff had a few gaps, but overall, they delivered exceptional work.

Design Services Review from Nathan May
Chop Dawg delivered wireframes, high-fidelity screens, a logo, and Figma files while keeping each week’s work clear. They felt like part of our team, brought fresh ideas, and pushed back when needed. The experience was strong overall, though a more detailed final review would have been helpful.

Web Design Review from Anonymous
Chop Dawg turned our early idea for a visual polling and decision-making platform into a prototype we could confidently share with others. It made the product much easier to explain, gave us something real to test with users, and supported more productive investor conversations. The work also helped our team get aligned on the product direction, development scope, and MVP roadmap. Their team was responsive, organized, and easy to work with throughout the process.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsMobile App Experiences That Inspire
Qodestar is a digital studio focused on building clean, high-performing mobile apps and digital experiences. We partner with startups, growing businesses, and creative teams to transform ideas into intuitive mobile solutions through thoughtful design and development...
Top Services:
- Mobile App Development
- Product Design
- UI/UX Design
- Digital Marketing
- SEO
- Show more
- Location
- Seattle, Washington
- Number of Employees
- Under 49
- Average Hourly Rate
- $75/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 1 Project Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsQodestar Services
Data sourced from the agency's DesignRush profile15 Fifteen Media CareBridge LMI Colorado
Your Vision Engineered To Perfection
Safztech is committed to quality, client satisfaction, and measurable results, delivering tailored solutions that elevate brands, enhance user engagement, and drive business growth...
Top Services:
- Web Design
- Web Development
- Mobile App Development
- SEO
- PPC
- Show more
- Location
- Bothell, Washington
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSafztech Services
Data sourced from the agency's DesignRush profileeCommerce Industry Food and Beverage Industry Retail Industry
Handcrafted Technology Solutions
At 9series, we help organizations move beyond traditional software by building intelligent systems powered by AI...
Top Services:
- Mobile App Development
- AI Development
- IoT
- Software Development
- Cloud Consulting
- Show more
- Location
- Bellevue, Washington
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $40/hr
- Portfolios Count
- 3 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts9series Services
Data sourced from the agency's DesignRush profileiWayTrack Overlay Planner Product Tube
An Artificial Intelligence Solution Company.
Softleo LLC. is led by highly qualified, creative and thoroughly experienced IT Professionals with an aim to deliver value and unlock the true potential of Organizational IT Assests and investments through innovative Artificial Intelligence and Machine Learning solutions. Softleo is having head office in...
Top Services:
- Software Development
- AI Development
- Web Development
- Mobile App Development
- Digital Marketing
- Show more
- Location
- Bothell, Washington
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $40/hr
- Minimal Budget
- Under $1,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSoftleo LLC Services
Data sourced from the agency's DesignRush profileRitiRiwaz KambojSociety TheSportsLead
Softleo LLC Reviews & Testimonials
Simran Josan's Review Sourced from Google
Had a great experience with the Softleo team for my IT consultation needs. The team was very knowledgeable and very attentive to the issues I needed addressed. 100% recommended them for anyone looking for expert work for any type of software development needs or IT consultations.
Vinay3 Goyal3's Review Sourced from Google
For all your software and frontend needs you can consult Diya. She listens to you and has a creative mindset.
Vikram Kamboj's Review Sourced from Google
I had an amazing experience working with Softleo LLC! Their team was incredibly professional, responsive, and skilled in delivering exactly what we needed for our business. The software they developed for us was intuitive, robust, and tailored perfectly to our requirements.What stood out the most was their customer service - they went above and beyond to ensure we were satisfied at every stage, from planning to deployment. Plus, their turnaround time was impressive without compromising on quality.If you're looking for a reliable, innovative, and client-focused software company, I highly recommend Softleo LLC! We will definitely be coming back for future projects.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsInnovative Software Solutions for All
Empowering businesses with cutting-edge software development services. Been a digital solution provider since 2018. Lets transform your digital presence together...
Top Services:
- Software Development
- Location
- Tacoma, Washington
- Number of Employees
- Under 49
- Average Hourly Rate
- $40/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 1 Project Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsNeaxus Services
Data sourced from the agency's DesignRush profileeCommerce Industry Corporate Services Industry Retail Industry
Maximizing Ideas
NTSprint helps U.S. businesses accelerate growth through AI-powered software, dedicated nearshore engineering teams, and scalable cloud solutions. With 10+ years of experience and 500+ projects delivered, we provide real-time collaboration, faster delivery, and measurable business impact...
Top Services:
- Software Development
- AI Development
- Cloud Consulting
- Web Development
- Mobile App Development
- Show more
- Location
- Bothell, Washington
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 13 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsNTSprint LLC Services
Data sourced from the agency's DesignRush profileLexus Microsoft Unitii
NTSprint LLC Reviews & Testimonials
Leniecer Gonzalez Gandara's Review Sourced from Google
I've had the pleasure of working with NTSprint for our custom web application development, and I can confidently say they exceeded all expectations. From the initial consultation to deployment, their team demonstrated exceptional professionalism, technical expertise, and genuine commitment to our project's success.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsAutomate. Elevate. Dominate. "Turning Your Leads Into Revenue Machines"
AvioneX Digital Co. is a Kent, WA digital marketing and AI automation agency helping local service businesses grow online. We specialize in website design, local SEO, AI chatbots, Google Ads, and workflow automation...
Top Services:
- Digital Marketing
- SEO
- Social Media Marketing
- Content Marketing
- Web Design
- Show more
- Location
- Kent, Washington
- Number of Employees
- Under 49
- Average Hourly Rate
- $40/hr
- Minimal Budget
- Under $1,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAvioneX Digital Co. Services
Data sourced from the agency's DesignRush profileLocal Reliable Movers Dyna-Peak Co. WickediTech
Mobile App Development Companies in Washington by City
Related Services in Washington
Mobile App Development Specializations in Washington
Popular Services
Why companies trust DesignRush
Every agency is independently vetted before it can be listed or ranked
Some agencies pay for sponsored placement, clearly labeled and held to the same vetting standards.










