Top Web Dev Companies in Portland, OR

Updated October 2025 - We’ve researched and ranked the leading web development agencies in Portland, and Sembit tops the list. This list highlights each agency’s services, expertise, and client reputation so you can find the best fit for your project.

In this guide, we'll review and compare the best web development companies in Portland based on client feedback from trusted review sites. As a business owner, startup founder or CTO looking for a trusted long-term web development partner, this guide will help you identify quality companies in the Portland area.

Comparison Table: Top Web Development Companies in Portland, OR

Rank Company Years in Business Rating Review Count
1 Sembit 16 5.0 47
2 Unosquare 16 4.9 42
3 Planet Argon 23 4.9 33
4 Olio Apps 10 5.0 17
5 Buildable 17 4.9 28
6 Steelhead Software 4 5.0 12
7 twenty ideas 11 4.9 19
8 IronGlove Studio 8 4.9 17
9 SingleMind 20 4.9 27
10 AltSource - Permanently Closed 21 4.7 24
11 Metal Toad 22 4.4 10
12 Parthenon 19 4.1 9

Our Ranking Methodology

To create our list of top web development companies, we compiled data from seven of the most widely used platforms where development firms are reviewed and rated. Each review and its corresponding rating were gathered, and then we calculated a summary score for each company across every platform.
The overall rating we display is based on a Bayesian average. A Bayesian average is a statistical method used to produce a more balanced and reliable rating by taking into account both the number of reviews a company has and the ratings given in those reviews. This approach helps prevent companies with only a handful of extremely positive or negative reviews from appearing artificially over or underrated. In other words, companies with more reviews have more statistical weight in the final calculation, while those with very few reviews are adjusted toward a more neutral baseline until they accumulate more feedback.
The companies we've reviewed are all headquartered in Oregon and the greater Portland Metro Area as opposed to large companies that station an employee or two in a shared workspace and use that to claim Portland locality. If you go with one of these firms, you will be working with people who are genuinely located in your timezone.
Sembit Corp. is a custom software development firm founded in 2009 that works with clients ranging from startups to enterprise organizations to build data-driven solutions. Their services include native iOS/Android apps, web applications, cloud or on-premises backends, complex database design/optimization, platform integrations, and application modernization. The team emphasizes strong communication, agile development processes, billing to the minute, and scaling resources up or down with project needs.
Unosquare is a full-cycle digital engineering firm founded in 2009, specializing in providing nearshore software development and talent solutions for companies in regulated, data-intensive, and high-growth industries such as healthcare, fintech, and high tech. Their nearshore model emphasizes close collaboration, lower time-zone friction, and flexible delivery, allowing clients to accelerate their digital roadmaps with transparency, quality, and adaptability.
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0 Reviews
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38 Reviews
4.9
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0 Reviews
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4 Reviews
5.0
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Planet Argon is a software agency founded in 2002 that specializes in modernizing, supporting, and evolving Ruby on Rails applications. Their services include consulting, managed support / maintenance, upgrades, fractional Rails development, and recruiting both onshore and nearshore engineering talent. They tend to work best with existing apps (addressing technical debt, legacy code, security, and performance) rather than building from scratch, and emphasize long-term, collaborative partnerships.
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0 Reviews
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21 Reviews
4.9
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5 Reviews
5.0
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7 Reviews
5.0
Olio Apps is a full-stack software consulting firm that helps companies build web, mobile, and cloud applications. They offer services including discovery and rapid prototyping, frontend and backend development (APIs, microservices, serverless), and cross-platform mobile apps (React Native, native customizations). They emphasize good communication, being adaptable, transparent, and delivering quality in a timely manner.
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17 Reviews
5.0
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Buildable is a custom software development company that works with clients across multiple industries - including healthcare, insurance, e-commerce, manufacturing, nonprofits and small-to-medium businesses - to build web, mobile, desktop, and enterprise applications tailored to each client’s needs. Buildable emphasizes working in an Agile mindset, collaborating closely with clients, and delivering maintainable, secure, scalable solutions that can grow with the business.
Steelhead Software develops custom business software with a focus on building web applications, mobile apps, and integrations to help companies streamline operations, manage data, and modernize legacy systems. They emphasize close collaboration (regular sprint reviews, UX/user-test input), transparency (budget & timeline visibility), and tailoring solutions to fit specific business workflows rather than using off-the-shelf software.
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0 Reviews
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6 Reviews
5.0
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6 Reviews
5.0
Twenty Ideas is a digital product agency founded in 2014, specializing in custom, AI-augmented software solutions mostly for health tech, ed tech, and other mission-driven industries. They run an incubator-style program ("20ideation") for startups to take products from ideation to launch, with tiers that help with MVPs, scaling, go-to-market preparedness, and post-launch support.
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0 Reviews
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12 Reviews
4.9
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2 Reviews
4.9
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5 Reviews
5.0
IronGlove Studio is a veteran-owned boutique web and software development firm founded in 2017, offering custom-built digital solutions for nonprofits, membership organizations, small to midsize businesses, government, and chambers of commerce. Their services include custom web and mobile applications, e-commerce, UX/UI design, SEO and digital marketing, and proprietary plugin/product development (notably their mapping-plugin IronMaps).
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0 Reviews
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17 Reviews
4.9
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Singlemind is a product design & development agency with over 20 years of experience whose services include product strategy and discovery, UX/UI and user-centered design, custom engineering and development, AI-augmented features, software maintenance/support, and modernization of legacy systems. They emphasize close collaboration, balancing business goals with user needs, reliability, performance, and ensuring that software products continue evolving after launch.
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1 Review
5.0
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24 Reviews
4.9
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0 Reviews
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2 Reviews
5.0
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0 Reviews
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AltSource, Inc. was a technology company specializing in custom software development and IT solutions for small to midsize businesses. As of recent reports, AltSource has permanently closed its operations, with its business listings indicating that they are no longer active.
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0 Reviews
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6 Reviews
5.0
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0 Reviews
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18 Reviews
4.6
Metal Toad is an Advanced AWS Consulting Partner specializing in cloud-native application development, modernization, and migration, with a strong focus on industries such as media, entertainment, healthcare, and nonprofits. They offer services including SaaS development, React/Next.js applications, generative AI consulting, machine learning, and AWS infrastructure optimization, often utilizing a hybrid U.S.-Brazil development model to balance cost and quality. Additionally, Metal Toad provides Securitoad, a real-time AI-powered security solution available on the AWS Marketplace, designed to proactively detect and mitigate cyber threats.
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0 Reviews
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10 Reviews
4.4
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Parthenon Software Group is a software development company specializing in custom web and mobile applications, scalable business solutions, and Linux server management. Their services include business analysis, agile development, team augmentation, and performance optimization for databases and cloud infrastructure. Clients appreciate their collaborative approach, with project managers and certified Scrum Masters guiding projects from requirements gathering to deployment and ongoing support.
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0 Reviews
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5 Reviews
5.0
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0 Reviews
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0 Reviews
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4 Reviews
3.0
*It’s important to note that we have strictly used rating averages in our methodology. DesignRush starts companies at an artificially lower baseline score of 3.5 and adjusts upward as more reviews come in. Because we have not applied a starting adjustment, our ratings will appear higher than those on DesignRush.