Meet the Team

Dedicated to building the inclusive web

With a relentless focus on people, at Tamman collaboration is our specialty. We know that we can’t build the inclusive web without working together, which is why we’re all about the accessibility ecosystem.

A headshot of Adrienne.

Adrienne

Product Owner

Alejandra

Project Manager

A profile of Amy.

Amy

Digital Designer

A headshot of Andrea.

Andrea

Digital Design Team Lead

A headshot of Bill.

Bill

Senior Software Engineering Lead

A headshot of Bridget.

Bridget

QA Specialist

A headshot of Carl.

Carl

QA Automation Developer

A headshot of Charles.

Charles

QA Tester

A headshot of Collin.

Collin

Curriculum & Training Lead

Cynthia

Macintosh Support

Profile picture of David Cheafsky smiling in black suit jacket, one shirt and striped time in front of a gray backdrop.

David

QA Specialist, Web

Devon

Product Owner

Emma

Business Analyst, Data & Visualization

A headshot of Emmanuel Marquez.

Emmanuel

Email Developer

Geoffrey

Macintosh Desktop Support Engineer

Gregg

Digital Designer

A headshot of Harper Yatvin.

Harper

Marketing Specialist

Heather Schiffbauer Headshot of her with a broad brimmed hat with blond hair in a beach setting background

Heather

Digital Production Manager & Team Lead

Headshot of Hunter McGinnis wearing glasses and a white shirt

Hunter

Digital Designer

James

Full Stack Developer

Jeff

Co-founder & CEO

Jeff

Director of Product Management

Jeneane

Digital Designer

Jose

Digital Designer

A headshot of Laura Spenke.

Laura

Email Developer

smiling headshot of Liza Grant with blue Phillies baseball cap and pink braided hair

Liza

Digital Accessibility Specialist

Marc

Chief Operating Officer

Marty

President

Mike

Co-founder & Solutions Architect

Rebecca

Digital Designer

headshot of Ryan Emery wearing a blue button up shirt with dark blue blazer

Ryan

Digital Design Team Lead

Samantha

Digital Designer

Profile picture of Sloan Miller in a gray suit jacket with blue shirt standing in front of a bookcase.

Sloan

VP, Partner Operations

A headshot of Steve Levine.

Steve

Market Research Analyst

Theresa

Administrative Manager

A headshot of Tobias Morrison.

Tobias

Sr. Mac Engineer

Tom

Digital Designer

A headshot of Wally Zielinsky

Wally

Sr. Digital Accessibility Engineer

Accessibility Group Monthly Meetup

Join the Community

Are you a professional in the accessibility space looking to share your ideas, project outcomes, network, and test out a presentation concept? Join in on our monthly accessibility (a11y) lightning group meetup and consider giving a 5-minute(ish) “rapid-fire” presentation on an accessibility topic of your choosing.

Learning Center

Resources that drive innovation

Tamman is built around the belief that access to information is a human right. We believe in blending inclusive design principles with your business strategies to empower accessibility champions, implement effective digital solutions, and create a lasting impact.

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