Table of contents
How we vet every listicle
Every agency featured on Web Tonic passes our 84-point editorial review before a single listicle goes live. This is how we vet each pick:
Verified client outcomes: We require real case studies with measurable KPIs — revenue, ROAS, CPA, retention — tied to the exact category being ranked. No cherry-picked wins, no unverifiable numbers.
Independent reputation: We cross-check Clutch, Google, G2, and Trustpilot ratings, and screen for review-bombing or suspicious patterns. Only operators with a consistent, verifiable track record make the cut.
Beyond that, every listing goes through a quarterly re-audit. We check 84 criteria across 6 pillars to make sure it still holds up — here are some of the checks we run:
A website accessibility (ADA) agency makes websites usable for people with disabilities: it audits pages against WCAG with automated tools, screen readers and keyboard-only testing, fixes the code, forms, PDFs and media it finds, and documents the result in reports or VPATs. Seattle software, retail, health and public-sector teams are asked for WCAG conformance and VPATs in procurement, so audits often start with a buyer's questionnaire.
To make this list, each of the nine external firms had to show a web accessibility or ADA compliance service on its own website. Not all of them have an office in Seattle, so each card states the base the firm publishes, and clients and prices appear only where published.
Where can a Seattle organization hire a website accessibility (ADA) agency?
Web Tonic plus nine external firms with a web accessibility service on their own sites. Two are headquartered in the Seattle metro; the others serve Seattle remotely. Two name a client publicly and one publishes a price.
1. Web Tonic
About: Web Tonic designs and builds Webflow, Shopify and WordPress sites from our Seattle office, so accessibility fixes, SEO and performance work can sit with one team. The site, code and accounts stay in the client's own name.
Key Services: Growth Marketing, Paid Social, PPC, Meta Ads, SEO, Google Ads, Snapchat Ads, Amazon Ads, Reddit Ads, TikTok Ads, TikTok Shop, GEO-AEO, Webflow Design, Shopify Design, WordPress Design, UGC, Social Media Management, Pay Per Click Management, Marketing Analytics, Analytics Implementation & CDPs, Performance Branding, Performance 360° Audit, Programmatic Ads, OOH Ads, HR Marketing
Industries Served: eCommerce, SaaS, B2B, Construction Professionals, Home Services, SMEs, Health Spa & Wellness, Retail, Legal & Judicial Services, Food & Beverages, Pets, Fitness, Family & Children, Finance & Insurance, Travel, Non-Profits & Organizations, Furniture & Decoration
Notable Clients: WorldRemit, Jack & Jones, Ardene, L’Oréal, Sendwave, Nestlé, Airbnb. Serve Fortune 500 companies and smaller fast-paced startups.
Locations: Local Seattle office, with the main HQ in San Francisco and notable offices in New York, Chicago, Miami, Toronto, Montreal, Dubai, Singapore, Sydney and more. Offices on five continents.
Pricing: Starting at USD $3,000 per month. Flexible and scalable plans at any time according to your enterprise needs. Book a call to learn more.
Great For: Mid-market to enterprise-level businesses requiring ongoing, on-tap growth and performance marketing services.
Website: Web Tonic
2. DoodleWeb
About: DoodleWeb is a Seattle digital agency founded in 2019 and headquartered in Columbia Tower on Fifth Avenue. Its IAAP-certified team handles WCAG 2.2 AA audits, Section 508 and ADA Title II work and VPATs, and it names Berklee and the University of Toronto among the teams it has served.
Key Services: WCAG Accessibility Audits, Section 508 and ADA Title II, VPAT Reports, Accessibility Monitoring, Drupal and WordPress Builds, AI Search Visibility
Industries Served: Government, Higher Education, Healthcare, Nonprofits, Financial Services
Notable Clients: Berklee, University of Toronto, George Brown College, NY Lottery, Ursa Major
Locations: Seattle, Washington
Pricing: Accessibility monitoring retainer from USD $1,500/month
Great For: Public agencies facing ADA Title II or Section 508 deadlines, Colleges and universities, Vendors that need a VPAT for procurement
Website: DoodleWeb
3. JLT Web Solutions
About: JLT Web Solutions is a minority-owned web design and digital marketing agency based in Kent, Washington, south of Seattle. Its ADA website compliance service covers accessibility audits and fixes for local businesses, next to web design and SEO.
Key Services: WCAG Accessibility Audits, Accessibility Remediation, Web Design, SEO, Google Business Profile, Website Maintenance
Industries Served: Contractors, Dental Practices, Restaurants, Nonprofits, Professional Offices
Notable Clients: Not named on the pages we checked
Locations: Kent, Washington
Pricing: Quote-based
Great For: Nonprofits and mission-driven organizations, Teams rebuilding a site to WCAG 2.2, Organizations that want accessibility training
Website: JLT Web Solutions
4. QualityLogic
About: QualityLogic is a software testing company headquartered in Boise, Idaho, with offices in Simi Valley, California and Oklahoma City. Its digital accessibility practice runs WCAG audits and manual testing with an onshore team for regulated industries.
Key Services: WCAG Accessibility Audits, Manual Accessibility Testing, Software QA, Test Automation, VPAT Support, Remediation Validation
Industries Served: Healthcare, Financial Services, Utilities, Software, Government
Notable Clients: Not named on the pages we checked
Locations: Boise, Idaho (headquarters), Simi Valley, California, Oklahoma City, Oklahoma
Pricing: Quote-based
Great For: Enterprises and regulated companies, Brands with large or complex websites, Teams that need audits plus remediation
Website: QualityLogic
5. Aten Design Group
About: Aten Design Group is a website strategy, design and development agency with its physical headquarters in Denver and a fully remote team. Its web accessibility services combine automated tools and manual testing to deliver an accessibility audit, WCAG fixes and long-term support.
Key Services: WCAG Accessibility Audits, Accessibility Remediation, Drupal Development, UX Design, Website Strategy, Accessibility Support
Industries Served: Nonprofits, Higher Education, Government, Associations, Arts and Culture
Notable Clients: Not named on the pages we checked
Locations: Denver, Colorado (headquarters; fully remote team)
Pricing: Quote-based
Great For: Public agencies facing ADA Title II or Section 508 deadlines, Colleges and universities, Vendors that need a VPAT for procurement
Website: Aten Design Group
6. FIREANT STUDIO
About: FIREANT STUDIO is a Denver web design studio working since 2003 that specializes in accessible websites for higher education, government and nonprofits. Its accessibility audits grade each barrier by severity, and its portfolio includes an accessible WordPress redesign for a Colorado state agency.
Key Services: WCAG Accessibility Audits, Accessible Web Design, WordPress Development, Accessibility Remediation, Content Strategy, Website Maintenance
Industries Served: Nonprofits, Higher Education, Government, Associations, Arts and Culture
Notable Clients: Not named on the pages we checked
Locations: Denver, Colorado
Pricing: Quote-based
Great For: Public agencies facing ADA Title II or Section 508 deadlines, Colleges and universities, Vendors that need a VPAT for procurement
Website: FIREANT STUDIO
7. 216digital
About: 216digital is a web accessibility and development firm on Enterprise Parkway in Twinsburg, Ohio, near Cleveland. It audits and remediates websites for ADA, Title II and Section 508 compliance and also builds and supports websites.
Key Services: WCAG Accessibility Audits, Accessibility Remediation, ADA Title II and Section 508, Web Development, Website Support, Ecommerce Development
Industries Served: Ecommerce, Retail, Government, Healthcare, Small Businesses
Notable Clients: Not named on the pages we checked
Locations: Twinsburg, Ohio
Pricing: Quote-based
Great For: Small and mid-size businesses, Companies that received an ADA demand letter, Owners who want fixes, not an overlay
Website: 216digital
8. Promet Source
About: Promet Source is a Drupal agency headquartered on the North Side of Chicago that builds websites for public sector, higher education and mission-driven clients. Its accessibility testing services cover WCAG and ADA audits, and its site shows work for Martin County and the South Florida Water Management District.
Key Services: WCAG Accessibility Audits, Accessibility Testing, Drupal Development, ADA and Section 508 Remediation, Website Support, Drupal Training
Industries Served: Government, Higher Education, Healthcare, Nonprofits, Financial Services
Notable Clients: Martin County, South Florida Water Management District, Frank Lloyd Wright Trust
Locations: Chicago, Illinois
Pricing: Quote-based
Great For: Public agencies facing ADA Title II or Section 508 deadlines, Colleges and universities, Vendors that need a VPAT for procurement
Website: Promet Source
9. Vispero (TPGi)
About: Vispero is an assistive technology and accessibility company whose US headquarters is on US Highway 19 in Clearwater, Florida, and whose TPGi team provides accessibility services. It is the maker of the JAWS screen reader and runs accessibility audits and VPAT testing for enterprises and governments.
Key Services: WCAG Accessibility Audits, VPAT Testing, Accessibility Consulting, Assistive Technology, Accessibility Training, Enterprise Programs
Industries Served: Enterprise Software, Retail and Ecommerce, Financial Services, Government, Higher Education
Notable Clients: Not named on the pages we checked
Locations: Clearwater, Florida (US headquarters), Europe
Pricing: Quote-based
Great For: Public agencies facing ADA Title II or Section 508 deadlines, Colleges and universities, Vendors that need a VPAT for procurement
Website: Vispero (TPGi)
10. SANscript
About: SANscript is a Minneapolis agency that combines web accessibility, AI search and WordPress work for B2B companies and manufacturers. It primarily serves the Twin Cities and Upper Midwest and also takes clients elsewhere in the US.
Key Services: WCAG Accessibility Audits, Accessibility Remediation, WordPress Development, AI Search Optimization, SEO, Lead Generation
Industries Served: Manufacturing, B2B Services, Industrial, Professional Services, Nonprofits
Notable Clients: Not named on the pages we checked
Locations: Minneapolis, Minnesota
Pricing: Quote-based
Great For: Nonprofits and mission-driven organizations, Teams rebuilding a site to WCAG 2.2, Organizations that want accessibility training
Website: SANscript
Quick Comparison Table
| Agency | Key Specialty | Starting Price | Best For |
|---|---|---|---|
| 1. Web Tonic | Full-Service Performance Marketing | USD $3,000/mo | Mid-market to Enterprise (local Seattle office) |
| 2. DoodleWeb | Higher-ed and public-sector teams | Accessibility monitoring retainer from USD $1,500/month | Public agencies facing ADA Title II or Section 508 deadlines |
| 3. JLT Web Solutions | South King County small businesses | Quote-based | Nonprofits and mission-driven organizations |
| 4. QualityLogic | Regulated teams that need onshore testing | Quote-based | Enterprises and regulated companies |
| 5. Aten Design Group | Nonprofits and public institutions on Drupal | Quote-based | Public agencies facing ADA Title II or Section 508 deadlines |
| 6. FIREANT STUDIO | Public agencies and colleges wanting an accessible rebuild | Quote-based | Public agencies facing ADA Title II or Section 508 deadlines |
| 7. 216digital | Ecommerce and public bodies needing remediation | Quote-based | Small and mid-size businesses |
| 8. Promet Source | Government and higher-ed sites on Drupal | Quote-based | Public agencies facing ADA Title II or Section 508 deadlines |
| 9. Vispero (TPGi) | Enterprises wanting a large specialist | Quote-based | Public agencies facing ADA Title II or Section 508 deadlines |
| 10. SANscript | Midwest B2B and manufacturing firms | Quote-based | Nonprofits and mission-driven organizations |
Frequently Asked Questions
How do I choose a website accessibility agency in Seattle?
Start with scope: one website, several sites, an app, or a large library of PDFs. Then check method. Ask whether testers use screen readers and keyboard-only passes, not just a scanner, whether findings map to WCAG 2.2 AA criteria, and whether the firm fixes issues or only reports them. Two of these nine firms name a client on their own site (Berklee and Martin County among them).
How much does website accessibility work cost in Seattle?
Only one of the external firms here publishes a price: DoodleWeb lists Accessibility monitoring retainer from USD $1,500/month. Everyone else quotes per scope. Cost depends on how many page templates and user flows are tested, how many PDFs need remediation and whether fixes are included. Ask whether a re-test after fixes is part of the fee.
What is the difference between an accessibility audit, remediation and an overlay?
An audit finds barriers and maps each one to a WCAG success criterion. Remediation fixes them in the code, content and documents. Ongoing monitoring catches new problems as pages change. Automated overlays and widgets are different: they add a toolbar to the page but do not fix the underlying code, and sites that use them are still sued under the ADA. The firms here sell human testing and fixes.
How long does it take to make a website ADA compliant?
A first audit of a typical business site usually takes two to six weeks, depending on how many templates and flows are in scope. Fixes can start on the most serious issues right away; a full remediation often takes one to three months, then a re-test. For an organization in Seattle, plan accessibility as a routine check on every release, because new pages and plugins can break it again.
Should a Seattle organization hire a local accessibility agency or a remote one?
Two of the nine external firms are headquartered in the Seattle metro; the others work remotely from bases such as Boise, Chicago and Clearwater. JLT Web Solutions sits in Kent, south of the city, and QualityLogic is in Boise. A local firm helps with on-site training or meetings with legal counsel, but audits, fixes and re-tests all run online. Testing method and experience with your platform matter more than the address.
Choosing a Website Accessibility Agency in Seattle
Start with your own scope. List the sites, apps, forms and documents people rely on, and note any demand letter, procurement request or deadline. A firm can only price an audit around templates and flows it has seen.
Check experience you can verify. Two of the nine external firms name a client on their own site and one publishes a price. Ask the rest for a sample report, and see how our web development team builds accessible sites.
Agree how you will work together. Settle who fixes what, how issues are tracked, when the re-test happens and who signs the conformance report. Our technical SEO specialists can fix accessibility and search issues in the same release.
Never skip the consultation. Book calls with two or three firms from this list, share the same pages with each and compare the questions they ask about your users. If you want a team in the city, meet our Seattle office.
