partners with public and private institutions to effectively accommodate the varying linguistic and cultural needs of those who are Deaf, DeafBlind, and Hard of Hearing. We develop strong relationships with our clients, consumers, and providers to guarantee an exceptional quality of Sign Language Interpreting and Realtime Captioning (CART) Services 24 hours per day, 7 days per week.


SignNexus is a certified Minority and Women-Owned Business Enterprise in New York City, New York State, and New Jersey. 


On-site Interpreting and CART Services are available in all five boroughs of New York City, Long Island, Westchester county, and New Jersey.  Video Remote Interpreting (VRI) Services and Remote Captioning Services are available nationwide!


SignNexus is formerly known as LC Interpreting Service, LLC. Established in 2014.



Committed to setting the standard for excellence and efficiency as providers of professional communication services that recognize and accommodate the diverse language needs and personal identities of individuals who are Deaf, DeafBlind, and Hard of Hearing.




SignNexus sign language interpreters and captioning providers are all individually screened, then hand selected for jobs that best utilize their skill and experience. They are professional, timely, and always available to answer questions or mediate any issues which may arise before, during, and after each assignment. Our team provides resources and guidance for those who request communication access services, and we incorporate cultural competency training along the way. This guarantees an outstanding experience for both Deaf and hearing clients. 



Lydia Callis



Lydia Callis is an RID nationally certified American Sign Language Interpreter from 3 generations of Deaf family. American Sign Language is Lydia’s first language because her mother and three younger siblings are all profoundly Deaf. Growing up at a time when there were insufficient laws to accommodate the needs of those who are Deaf, she witnessed the challenges her family members were expected to overcome to access everyday communication. She began interpreting to help her family communicate and to make sure she stayed fluent in the language of her roots


Lydia founded LC Interpreting Services LLC (now known as SignNexus) in 2014 with the goal of consistently providing high quality, culturally competent sign language interpreters. From decades of experience as an interpreter— first as a very young child, then later in the business world— Lydia knew the diverse needs of the Deaf population were not being met by large multi-language interpreting agencies. She wanted to make it simple for individuals and businesses to ensure they were hiring qualified Sign Language interpreters, while at the same time facilitating deeper, more meaningful relationships with the Deaf, DeafBlind, and Hard of Hearing community.


As a Child of Deaf Adults (CODA) and active interpreter, Lydia endeavors to continuously support the Deaf and interpreting communities in any way possible. She partners with local and national groups to help empower people who are Deaf, and works to educate businesses and organizations about effective inclusion practices for those with hearing loss. American Sign Language is Lydia’s passion and connecting people is her purpose! She is humbled to serve the Deaf community, the hearing community, and the interpreter community through her work with SignNexus.

When she's not working, Lydia enjoys having adventures while spending time with friends. Her personal interests include healthy living, astrology, yoga, and empowering others to commit to their passions in life.

Kat Brady

Executive Administrator


Kat Brady is our Executive Administrator, and she also fills a number of other roles throughout the day. She holds a BA in Journalism and Mass Communications, with a background in tech and a decade of experience in new media marketing. Kat is dedicated to dissecting, discussing, and actively working to dismantle existing systems of supremacy and oppression. She believes in the powers of technology and community to amplify personal experiences and expose injustices. Kat joined SignNexus in 2014 and has been an integral part of the agency from the start. She is also a world traveler who enjoys eating great food and learning something new every day.

Samantha Vengels

AP / AR Coordinator


Samantha Vengels is the Accounts Payable and Accounts Receivable Coordinator, she joined the SignNexus team in 2021. Born deaf and raised in South New Jersey, Samantha attended mainstream schools through her childhood. After graduating high school. Samantha went on to RIT/NTID to obtain a Bachelor’s degree in Accounting. Now Samantha is enrolled in Rider University’s Masters Program to receive her Masters Degree in Accounting for CPA eligibility. Samantha’s passions are traveling, reading, spending time with family, and playing with her two dogs. 

Annmarie Abreu

Interpreter Coordinator


Annmarie Abreu is our talented Interpreter Coordinator, she joined the SignNexus team in 2021. She comes to this position with more than eight years of experience, and is passionate in her desire to serve the Deaf community through the lens of coordinating. Annmarie is committed to meeting the communication needs of every individual in each unique setting. She graduated from St. John’s University with a B.A. in Government and Politics, as well as a minor in Criminal Justice. In her spare time, Annmarie loves to travel, read, and spend time with her family.

Crystal Barrett

Assistant Interpreter Coordinator


Crystal Barrett is our Assistant Interpreter Coordinator, utilizing her own ASL interpreting and captioning experience to support the SignNexus team since 2021. Crystal attended the Rochester Institute of Technology and received a Bachelor’s degree from their American Sign Language-English Interpreting program. As Crystal believes that human communication and connection are core values, she is honored for the opportunity to serve the Deaf community. When Crystal is not working, she enjoys taking care of her plants and crocheting gifts for friends and family.



You will find below a list of articles and videos that highlight SignNexus interpreters and/or advocacy efforts. Our agency is grateful to be so involved with New York City’s vibrant Deaf, DeafBlind, and Hard of Hearing community!