Exhibit 21.1
As of February 21, 2024

All corporations are subsidiaries of Tyler Technologies and, if indented, subsidiaries of the company under which they are listed.
SubsidiariesOrganized Under the Laws of:
Tyler Technologies A&T Services, LLCDelaware
Tyler Appraisal & Tax Services, ULCCanada
Tyler Technologies Australia PTY LTDAustralia
Tyler Federal, LLCVirginia
Harris Custom Programming, LLCGeorgia
MicroPact Philippines, Inc.Philippines
ARInspect, LLCDelaware
ARInspect India Pty Ltd.India
Computing System Innocations, LLCDelaware
NIC Inc.Delaware
National Online Registries, LLCColorado
NIC Federal, LLCKansas
NIC Services, LLCColorado
NIC Solutions, LLCColorado
Alabama Interactive, LLCAlabama
Arkansas Information Consortium, LLCArkansas
Colorado Interactive, LLCColorado
Connecticut Interactive, LLCConnecticut
Hawaii Information Consortium, LLCHawaii
Idaho Information Consortium, LLCIdaho
Illinois Interactive, LLCIllinois
Indiana Interactive, LLCIndiana
Kansas Information Consortium, LLCKansas
Kentucky Interactive, LLCKentucky
Local Government Online Indiana, LLCIndiana
Louisiana Interactive, LLCLouisiana
Maine Information Network, LLCMaine
Maryland Interactive, LLCMaryland
Michigan Interactive, LLCMichigan
Mississippi Interactive, LLCMississippi
Montana Interactive, LLCMontana
Nebraska Interactive, LLCNebraska
New Jersey Interactive, LLCNew Jersey
New Mexico Interactive, LLCNew Mexico
NIC Healthcare Solutions, LLCKansas
NIC Iowa, LLC (fka Iowa Interactive, LLC)Iowa
NIC Licensing Solutions, LLCColorado
Oklahoma Interactive, LLCOklahoma
Oregon Information Consortium, LLCOregon

Exhibit 21.1
Pennsylvania Interactive, LLCPennsylvania
Rhode Island Interactive, LLCRhode Island
South Carolina Interactive, LLCSouth Carolina
South Dakota Interactive, LLCSouth Dakota
Texas NICUSA, LLCTexas
Utah Interactive, LLCUtah
Construction Registry Services, LLCUtah
Vermont Information Consortium, LLCVermont
Virginia Interactive, LLCVirginia
West Virginia Interactive, LLCWest Virginia
Wisconsin Interactive Network, LLCWisconsin
Delaware Interactive, LLCDelaware
Florida Interactive, LLCFlorida
New York Information Consortium, LLCNew York
North Carolina Interactive, LLCNorth Carolina
Tennessee Information Consortium, LLCTennessee
Washington Interactive, LLCWashington
Rapid Financial Solutions, LLCUtah
Software Exchange, LLCKansas
Tsunami Surf Riders, LLCKansas
US eDirect LLCNew York
US eDirect Canada Inc.Canada
US eDirect Australia PTY LTDAustralia

The names of certain subsidiaries are omitted, as such subsidiaries in the aggregate would not constitute a significant subsidiary.