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. Houston energy, healthcare, legal and local service businesses often come to accessibility after a demand letter, when fast remediation matters more than a new design.
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 Houston, so each card states the base the firm publishes, and clients and prices appear only where published.
Who fixes website accessibility and ADA issues for Houston businesses?
Web Tonic plus nine external firms with a web accessibility service on their own sites. Three are headquartered in Greater Houston; the others serve Houston remotely. One names a client publicly and none publishes a price.
1. Web Tonic
About: Web Tonic designs and builds Webflow, Shopify and WordPress sites from our Houston 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 Houston 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. ASTOUNDZ
About: ASTOUNDZ is a Houston web design, SEO and PPC company on Brookwoods Drive. Its ADA compliance service reviews websites for accessibility barriers and brings them in line with WCAG as part of its web work.
Key Services: WCAG Accessibility Audits, Accessibility Remediation, Web Design, SEO, PPC, Social Media Marketing
Industries Served: Small and Mid-size Businesses, Law Firms, Healthcare, Retail, Professional Services
Notable Clients: Not named on the pages we checked
Locations: Houston, Texas
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: ASTOUNDZ
3. WP Support Houston
About: WP Support Houston is a WordPress support and development firm in Houston. Its WordPress ADA compliance service fixes accessibility issues on existing WordPress sites, next to maintenance and plugin support.
Key Services: WCAG Accessibility Audits, WordPress Remediation, WordPress Support, Website Maintenance, WordPress Development, Hosting
Industries Served: Small and Mid-size Businesses, Law Firms, Healthcare, Retail, Professional Services
Notable Clients: Not named on the pages we checked
Locations: Houston, Texas
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: WP Support Houston
4. Brisk ADA Compliance
About: Brisk ADA Compliance is a Houston-area web accessibility firm with an office on Research Forest Drive in The Woodlands. It has focused on ADA compliance since 2022, with audits, remediation, accessible web design and ongoing monitoring.
Key Services: WCAG Accessibility Audits, Accessibility Remediation, Accessible Web Design, Ongoing Monitoring, Emergency Lawsuit Support, Compliance Reports
Industries Served: Small and Mid-size Businesses, Law Firms, Healthcare, Retail, Professional Services
Notable Clients: Not named on the pages we checked
Locations: The Woodlands, Texas
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: Brisk ADA Compliance
5. Triforce Digital Marketing
About: Triforce Digital Marketing is a digital marketing agency founded in 2016 with offices in Richardson, Houston and Las Vegas. Its ADA compliance service in Dallas covers accessibility audits and fixes next to web design and SEO.
Key Services: WCAG Accessibility Audits, Accessibility Remediation, Web Design, SEO, PPC, Social Media Marketing
Industries Served: Small and Mid-size Businesses, Law Firms, Healthcare, Retail, Professional Services
Notable Clients: Not named on the pages we checked
Locations: Richardson, Texas, Houston, Texas, Las Vegas, Nevada
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: Triforce Digital Marketing
6. Microassist
About: Microassist is an Austin company founded in 1988 that has provided digital accessibility services since the early 2000s. It runs independent accessibility audits, consulting and training alongside custom e-learning development.
Key Services: WCAG Accessibility Audits, Independent Accessibility Audits, Accessibility Consulting, Accessibility Training, E-learning Development, Document Remediation
Industries Served: Government, Higher Education, Healthcare, Corporate, Nonprofits
Notable Clients: Not named on the pages we checked
Locations: Austin, Texas
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: Microassist
7. Equalize Digital
About: Equalize Digital is a mission-driven company based in Georgetown, Texas, that specializes in WordPress accessibility products and consulting. It runs website accessibility audits, remediation and ongoing support, and it makes the Accessibility Checker plugin.
Key Services: WCAG Accessibility Audits, WordPress Remediation, Accessibility Checker Plugin, Ongoing Support, Accessibility Training, Consulting
Industries Served: Higher Education, Government, Nonprofits, Enterprise, Small Businesses
Notable Clients: Not named on the pages we checked
Locations: Georgetown, Texas
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: Equalize Digital
8. Knowbility
About: Knowbility is a nonprofit based in Austin, Texas, founded in 1999 and working in accessible technology since then. It provides accessibility consulting, audits and training for business, education, government and nonprofit organizations.
Key Services: WCAG Accessibility Audits, Accessibility Consulting, Accessibility Training, K-12 Digital Accessibility, Usability Testing, Policy Support
Industries Served: Education, Government, Nonprofits, Business, Higher Education
Notable Clients: Not named on the pages we checked
Locations: Austin, Texas
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: Knowbility
9. 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
10. CyberOptik
About: CyberOptik is a nationwide WordPress agency headquartered in Elmhurst, Illinois, that has built and supported websites since 2002. Its ADA website accessibility service brings WordPress sites up to WCAG compliance.
Key Services: WCAG Accessibility Audits, WordPress Remediation, WordPress Design, SEO, Website Hosting, Website Maintenance
Industries Served: B2B, Manufacturing, Professional Services, Nonprofits, Healthcare
Notable Clients: Not named on the pages we checked
Locations: Elmhurst, Illinois
Pricing: Quote-based
Great For: Nonprofits and mission-driven organizations, Teams rebuilding a site to WCAG 2.2, Organizations that want accessibility training
Website: CyberOptik
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 Houston office) |
| 2. ASTOUNDZ | Houston small businesses | Quote-based | Small and mid-size businesses |
| 3. WP Support Houston | Houston businesses on WordPress | Quote-based | Small and mid-size businesses |
| 4. Brisk ADA Compliance | Businesses responding to a demand letter | Quote-based | Small and mid-size businesses |
| 5. Triforce Digital Marketing | Texas small businesses and nonprofits | Quote-based | Small and mid-size businesses |
| 6. Microassist | Public bodies that want an independent audit | Quote-based | Public agencies facing ADA Title II or Section 508 deadlines |
| 7. Equalize Digital | WordPress sites of any size | Quote-based | Public agencies facing ADA Title II or Section 508 deadlines |
| 8. Knowbility | Schools and agencies building in-house skills | Quote-based | Public agencies facing ADA Title II or Section 508 deadlines |
| 9. Promet Source | Government and higher-ed sites on Drupal | Quote-based | Public agencies facing ADA Title II or Section 508 deadlines |
| 10. CyberOptik | Mid-size organizations on WordPress | Quote-based | Nonprofits and mission-driven organizations |
Frequently Asked Questions
How do I choose a website accessibility agency in Houston?
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. One of these nine firms names a client on its own site (Martin County).
How much does website accessibility work cost in Houston?
None of the external firms here publishes a price for accessibility work, so every figure will come from a proposal. Cost depends on how many page templates and user flows are tested, how many PDFs need remediation and whether the firm fixes issues or only reports them. Ask whether a re-test after fixes and a written conformance report are 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 Houston, plan accessibility as a routine check on every release, because new pages and plugins can break it again.
Should a Houston organization hire a local accessibility agency or a remote one?
Three of the nine external firms are headquartered in Greater Houston; the others work remotely from bases such as Austin, Chicago and Elmhurst. Brisk ADA Compliance sits in The Woodlands, and Triforce lists a Houston office next to its Richardson base. 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 Houston
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. One of the nine external firms names a client on their own site and none 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 Houston office.
