Texas Organ Sharing Alliance (TOSA), founded in 1975, is one of 56 federally-designated organ procurement organizations (OPOs) in the United States. TOSA is committed to a mission of saving lives through the power of organ donation by providing organ donation and recovery services to Central and South Texans wishing to donate, and to those waiting for a life-saving organ transplant.

About Us

A Private, Not-For-Profit 501 ( C ) ( 3 ) Organization

Through our efforts and dedication of staff in our corporate office in San Antonio and regional offices in Austin and McAllen, TOSA has been recognized as one of San Antonio's Top Workplaces and named the 2014 Top Workplace Small Business Winner by the San Antonio-Express News.

Service AreaS

Northern Region

Emily Marazzo / Pearl Plata

866.685.0277 Toll Free
7000 North Mopac, Suite 160
Austin, Texas 78731

Counties Served

  • Bastrop
  • Blanco
  • Burleson
  • Burnet
  • Caldwell
  • Fayette
  • Hays
  • Lampasas
  • Lee
  • Llano
  • Mason
  • McCulloch
  • McLennan
  • Menard
  • Milam
  • San Saba
  • Tom Green
  • Travis (Regional Office)
  • Williamson

Central Region

Pearl Plata / Rachel Quigley

866.685.0277 Toll Free
5051 Hamilton Wolfe Rd.
San Antonio, TX 78229-4455

Counties Served

  • Atascosa
  • Bandera
  • Bexar (TOSA HQ)
  • Comal
  • DeWitt
  • Edwards
  • Frio
  • Gillespie
  • Gonzales
  • Guadalupe
  • Karnes
  • Kendall
  • Kerr
  • Kimble
  • Medina
  • Real
  • Sutton
  • Wilson

Southern Region

Paola Cepeda / Sarah Salas

866.685.0277 Toll Free
1400 N. McColl Rd., Suite 104A
McAllen, Texas 78501

Counties Served

  • Brooks
  • Cameron
  • Dimmit
  • Duval
  • Hidalgo (Regional Office)
  • Val Verde
  • Jim Hogg
  • Kenedy
  • Kinney
  • La Salle
  • Live Oak
  • Maverick
  • McMullen
  • Starr
  • Uvalde
  • Webb
  • Willacy
  • Zapata
  • Zavala


Donate Life Texas

Established by the 79th Texas Legislature in 2005, the Glenda Dawson Donate Life Texas Registry allows individuals to record legal consent for organ, eye and tissue donation after death. A non-profit organization, Donate Life Texas Inc. maintains and operates the donor registry and is governed by a Board of Directors comprised of the CEOs of Texas' three federally-designated organ procurement organizations (OPOs).

Legislation created partnerships with the Texas Department of Public Safety (TxDPS) and the Texas Department of Motor Vehicles (DMV) that allow individuals to join the donor registry when applying for or renewing their driver's license, ID or vehicle registration.

The Donate Life Texas Donor Registry was named in honor of Rep. Glenda Dawson. Elected in 2002, Dawson served two terms as the Texas House Representative for the 29th District. A kidney transplant recipient, Dawson was a passionate advocate for organ donation.

Donate Life Texas is among the fastest growing donor registries in the country. As a result, thousands of lives have been saved thanks to registered organ, eye and tissue donors.

San Antonio Eye Bank

The community-based eye bank was founded in 1965 to meet the growing need for cornea donations to help restore sight to the blind through cornea transplantation. The eye bank has become a pioneer and leader in providing eye banking services and support to families, patients, surgeons and hospitals in San Antonio and throughout South Texas for more than 50 years.

South Texas Blood & Tissue Center

South Texas Blood & Tissue Center (STBTC), a subsidiary of BioBridge Global, partners with the Donate Life program to raise awareness about the need for tissue donation in order to enhance and save lives in our community and beyond. STBTC has a 45-year history serving the South Texas community. It recovers donated human tissue to help patients suffering from a range of conditions, such as severe burns or traumatic wounds, sports injuries, or in need of reconstructive surgery. STBTC ensures that each donated gift makes the biggest impact possible and honors each donor and their families throughout the year.

United Tissue Resources

The former Blood & Tissue Center of Central Texas was founded in 1951 as a 501(c)(3) not-for-profit organization. The Tissue Services division was established in 1986 due to the increasing demand for allograft tissue. The Tissue Center maintained a centrally located allograft inventory for area hospitals and surgery centers serving patient needs. Approximately 4,000 tissue grafts are distributed to area hospitals annually for life-saving surgeries. Our organization also works with generous donor families to make the gifts possible. The mission continues as the organization moves forward as United Tissue Resources. United Tissue Resources' main facility is located in Austin, Texas.

Miracles in Sight Lone Star Division

Miracles in Sight, Lone Star Division is a 501(c)(3) non-profit corporation dedicated to the restoration, preservation, and enhancement of sight through transplant, research, and innovation. A significant part of this mission is stewardship focused on training and educating the medical community and supporting partners and organizations worldwide.

We are dedicated to exceptional customer service and serving the local community in Central & South Texas. Through collaboration and partnership, we work side-by-side with the local donation and transplant community to raise donor awareness and enhance patients' visual outcomes.

In 2020, the Lone Star Lions Eye Bank partnered with Miracles In Sight, becoming Miracles in Sight, Lone Star Division. Together we have strengthened our commitment to serving the local donor and transplant community.

Texas Donor Network

Established in 2018, Texas Donor Network is the first FDA registered organization of its kind based in the Rio Grande Valley.

Partnered with hospitals throughout the Rio Grande Valley, Texas Donor Network is dedicated to improving the people's lives by providing donated tissues for transplantation, research, therapy and education.

Governing Board

Chair Larry A. Eisenberg
Vince Speeg, MD, PhD
Dolly Elizondo
Glenn Halff, MD
Michael Horton, PharmD
Bruce Mitchell
Jerry Morrisey, PhD
Luke Y. Shen, MD

OUR Leadership


President & CEO


Senior Vice President & COO


VP & Chief Performance Officer


Chief Clinical Officer

Katelin Nicholes

Director of Hospital Development

Wayne Eaves

Director of Donation Services Center

Jessica Cortez

Director of Corporate Education

Adriana Almanza

Director of Donor Family Services

Casey Casseb

Director of Communications

Irma Puente

Director of Human Resources


The team at Texas Organ Sharing Alliance (TOSA) is dedicated to its mission to save lives through the power of organ donation in Central and South Texas.

To review open positions and apply, please use the link to be directed to our TOSA Career Page.

To The Community

Texas Organ Sharing Alliance releases a report to the Community once per year.

Read the most recent report or view the archives:


Financial contributions can be made to Texas Organ Sharing Alliance Foundation to show support for donation and transplantation, as well as in memory or honor of an individual. The purpose of the TOSA Foundation is to build, support and maintain a temporary residence for organ recipients and their families, living donors as well as family members of TOSA's donors who do not live in the San Antonio metro area.

You may donate online by clicking the button below. You may also send financial contributions to us at:

Texas Organ Sharing Alliance
P.O. Box 29250
San Antonio, TX 78229