About Us


Our mission is to provide world-class language access to the Deaf community.

TCS Interpreting is a Deaf woman-owned small business providing sign language interpreting and related services nationwide. Located in Montgomery County, Maryland, just outside of Washington, DC, TCS Interpreting can meet your needs anywhere in the U.S. We fulfill our mission of providing world-class language access to the Deaf community by nurturing and developing competent practitioners, and partnering with organizations to develop best practices for interacting with Deaf individuals. TCS Interpreting understands that businesses aim to meet the language needs of their Deaf employees, clients, and the general public with which they interact. We are committed to working alongside businesses and agencies, offering a range of services to meet this need.

TCS Interpreting is on the GSA schedule and offers a wealth of services to ensure your communication needs are met. We have the largest number of staff interpreters in the Washington, DC Metropolitan Area, and a network that reaches nationwide. As we pledge in our mission statement, our goal is to be your partner, offering our expertise by helping you identify the most effective communication solution. Our client service team works with you to determine how to best provide the communication you need, and offers a variety of staffing solutions. Whether you are a federal agency with a large number of Deaf employees located nationwide, or a local doctor caring for a Deaf patient, TCS Interpreting can provide the right solution.

Corporate Values

We believe robust, native language access is a human right. We envision a world where every individual has the autonomy to determine their own native language choice.

Our values are a part of the corporate culture and guide us in all of our decision making.

    • All In
    • Got Your Back
    • Level The Playing Field
    • Always Learning
    • Make A Way
    • Do The Right Thing
blue lines for corporate values section


Abacus N Bytes, Inc. was founded in 1982 by Myrna and Phil Aiello. As Deaf entrepreneurs, Myrna and Phil established a strong reputation for themselves in the computer and IT industry. They later added the DBA name, TCS Associates. From 1982 to 2005, TCS Associates had two main service offerings: mainstream IT support, both hardware and software, and Assistive Technology services for blind, low-vision, and deaf-blind individuals. In 2005, TCS Associates added sign language interpreting as a third service offering. In 2008, TCS Associates decided to refocus and restructure the organization to provide services under two main divisions: assistive technology and sign language interpreting. After experiencing rapid growth and expansion, TCS Associates decided to restructure each division into separate legal entities in 2015.

TCS Interpreting (TCSI) is led by Jessica Moseley and provides on-site and remote sign language interpreting services nationwide. TCS Associates (TCSA) is led by Bryan Moseley and provides communication and technology consulting services for blind, low-vision, and deaf-blind individuals. These two organizations are legally separate and are considered sister companies.

First picture - A Black and white picture of a couple holding a baby standing front of the store. The store’s sign says “Software” .Second picture - A black and white picture of a couple with a baby, they all smile and pose at the camera. The baby is between the couple and sitting down on the table. There are boxes and books in the background.

Phil Aiello, Myrna Aiello and their daughter Jessica Moseley (age 1) outside of their first retail store in Greenbelt, MD in 1982.


Our Team

Jessica Moseley

Chief Executive Officer

Myrna Aiello


Erin Lappin

Director of Interpreting

Kelly McNabb

VRI Operations Manager

Alana Calhoun

Workforce Coordinator

Seth Keating

Nationwide Services Representative

Rachel Hinton

Community Interpreting Liaison