Annabelle Sebesta
Cornerstone Government Affairs
asebesta@cgagroup.com
771-210-9192
919 Congress Avenue, Suite 1000, Austin, TX, 78701, 
Subjects: All Subjects
Links: Website, LinkedIn
1) a16z
2) Advanced Power Alliance
3) Air Liquide
4) Atascosa County
5) Baker Institute
6) BayMark Health Services
7) Bristow Group
8) Cemex
9) Climavision Operating, LLC
10) Community Choice Financial OpCo, LLC
11) Community Health Choice
12) DeWitt County
13) Endeavors
14) Environmental Defense Action Fund
15) Fort Bend Chamber of Commerce
16) Garner Environmental
17) Gonzales County
18) Harris Health System
19) Hewlett-Packard Enterprise Company
20) Houston Firefighters Relief and Retirement Fund
21) Hunt Companies, Inc.
22) Luminant Generation Company LLC
23) McMullen County
24) Motorola Solutions, Inc.
25) Outfront Media Inc.
26) Pagewood
27) Parsons Corporation
28) PrizePicks
29) QuikTrip Corporation
30) Rice University
31) RSM LLP
32) San Jacinto River Authority
33) Simon Wiesenthal Center
34) Speedy Stop Food Stores LLC
35) Texans for Charitable Bingo Inc
36) Texas EMS Alliance Association
37) Texas Manufactured Housing Association
38) Texas Medical Center
39) Texas Pacific Land Corporation
40) Texas Poultry Federation
41) TXU Energy Retail Company LLC
42) Vistra Corp.
43) Vistra Corporate Services Company
44) Waterford.org
45) Wellpath Recovery Solutions, LLC
0-5 years
Annabelle Sebesta joined the Austin office as a Senior Associate in October 2022. In her role, she assists with administrative and support duties, scheduling meetings and organizing annual events and legislative receptions. Additionally, during the legislative sessions, she provides extensive support to the team by following legislation and keeping the team up to date with information.Prior to Cornerstone, Annabelle served as Administrative Coordinator at the Office of the Texas Speaker. In this role, she assisted senior staff with correspondence, resource navigation, special property and supply requests. In the same office, Annabelle was a Correspondence Assistant, where she drafted correspondence by researching legislation and maintained data entry for incoming and outgoing communication. She also assisted the director of administration with onboarding the 87th regular legislative session intern class and new staff members of the office, as well as the production of special events.Annabelle received her bachelor's degree in advertising from the University of Texas Austin.
Last Updated: October 05, 2025