# Fire alarm companies in Austin, Texas

47 fire alarm companies with an active Texas SFMO Fire Alarm Certificate of Registration (ACR) have a location in Austin, Texas, as of October 24, 2026. 18 more are elsewhere in Travis County.

Sale, installation, inspection, testing, monitoring and service of fire alarm and detection systems.

## Located in Austin

- [ADT LLC](https://plumbregistry.com/fire-protection/providers/adt-llc/) — based in Austin, TX; fire alarm; registrations: ACR-1761535; phone: 561-226-2843
- [AK Telecom LLC](https://plumbregistry.com/fire-protection/providers/ak-telecom-llc/) — based in Austin, TX; fire alarm; registrations: ACR-2840944; phone: 512-749-5796
- [Alert 360](https://plumbregistry.com/fire-protection/providers/alert-360/) — based in Fort Worth, TX; fire alarm; registrations: ACR-1751187; phone: 469-446-1434
- [Allied Fire Protection LLC](https://plumbregistry.com/fire-protection/providers/allied-fire-protection-llc/) — based in Austin, TX; fire alarm, fire extinguisher and fire sprinkler; registrations: ACR-2370636, ACR-2638658, ECR-1798, ECR-2021, SCR-G-0519, SCR-G-0817; phone: 346-535-7100
- [Amens Integrated LLC](https://plumbregistry.com/fire-protection/providers/amens-integrated-llc/) — based in Austin, TX; fire alarm; registrations: ACR-3258183; phone: 817-733-5019
- [American Fire Systems Inc](https://plumbregistry.com/fire-protection/providers/american-fire-systems-inc/) — based in Houston, TX; fire alarm, fire extinguisher and fire sprinkler; registrations: ACR-3155, ECR-1715, SCR-G-0723, SCR-G-2991581; phone: 713-466-9898
- [Austin Community College](https://plumbregistry.com/fire-protection/providers/austin-community-college/) — based in Austin, TX; fire alarm and fire extinguisher; registrations: ACR-3395, ECR-1697872; phone: 512-223-1020
- [Big State Electric, Ltd](https://plumbregistry.com/fire-protection/providers/big-state-electric-ltd/) — based in San Antonio, TX; fire alarm; registrations: ACR-1750578; phone: 210-735-1051
- [Cadarean Security Systems](https://plumbregistry.com/fire-protection/providers/cadarean-security-systems/) — based in Austin, TX; fire alarm; registrations: ACR-2361356; phone: 512-331-0912
- [Caruth Protection Services, LLC](https://plumbregistry.com/fire-protection/providers/caruth-protection-services-llc/) — based in Sunnyvale, TX; fire alarm, fire extinguisher and fire sprinkler; registrations: ACR-2557244, ECR-2565522, SCR-G-2582654; phone: 214-919-2231
- [Chirp Security & Audio LLC](https://plumbregistry.com/fire-protection/providers/chirp-security-audio-llc/) — based in Austin, TX; fire alarm; registrations: ACR-1966836; phone: 512-626-8875
- [Cintas Fire Protection](https://plumbregistry.com/fire-protection/providers/cintas-fire-protection/) — based in San Antonio, TX; fire alarm and fire sprinkler; registrations: ACR-3228, SCR-G-1826607; phone: 817-640-2223
- [Convergint CTC Texas LLC](https://plumbregistry.com/fire-protection/providers/convergint-ctc-texas-llc/) — based in Carrollton, TX; fire alarm; registrations: ACR-1750734; phone: 214-876-2622
- [DJB Systems & Integration, LLC](https://plumbregistry.com/fire-protection/providers/djb-systems-integration-llc/) — based in Austin, TX; fire alarm; registrations: ACR-3304791; phone: 512-288-5871
- [Everon LLC](https://plumbregistry.com/fire-protection/providers/everon-llc/) — based in Austin, TX; fire alarm, fire extinguisher and fire sprinkler; registrations: ACR-1751015, ECR-2791198, HCR-2780234, SCR-G-2766792; phone: 213-292-9333
- [Fire & Anvil LLC](https://plumbregistry.com/fire-protection/providers/fire-anvil-llc/) — based in Austin, TX; fire alarm and fire extinguisher; registrations: ACR-3495182, ECR-3495216; phone: 302-500-3879
- [Fire Alarm Control Professionals LLC](https://plumbregistry.com/fire-protection/providers/fire-alarm-control-professionals-llc/) — based in Austin, TX; fire alarm; registrations: ACR-2944787; phone: 512-844-0763
- [Fire King LLC](https://plumbregistry.com/fire-protection/providers/fire-king-llc/) — based in Austin, TX; fire alarm, fire extinguisher and fire sprinkler; registrations: ACR-1899690, ECR-1899694, SCR-G-1899691; phone: 512-425-0272
- [Firetrol Protection Systems Inc](https://plumbregistry.com/fire-protection/providers/firetrol-protection-systems-inc/) — based in Richardson, TX; fire alarm, fire extinguisher and fire sprinkler; registrations: ACR-1751168, ECR-1751432, SCR-G-0292; phone: 214-343-9200
- [FLS Solutions LLC](https://plumbregistry.com/fire-protection/providers/fls-solutions-llc/) — based in Austin, TX; fire alarm; registrations: ACR-3182546; phone: 817-676-1096
- [HomePro Operating LLC](https://plumbregistry.com/fire-protection/providers/homepro-operating-llc/) — based in Carrollton, TX; fire alarm; registrations: ACR-1757869; phone: 972-245-5777
- [JMK Systems LLC](https://plumbregistry.com/fire-protection/providers/jmk-systems-llc/) — based in Austin, TX; fire alarm; registrations: ACR-3083535; phone: 737-400-0357
- [Johnson Controls Fire Protection LP](https://plumbregistry.com/fire-protection/providers/johnson-controls-fire-protection-lp/) — based in Houston, TX; fire alarm, fire extinguisher and fire sprinkler; registrations: ACR-2147, ECR-1627, SCR-G-0659; phone: 561-341-7639
- [Johnson Controls Security Solutions LLC](https://plumbregistry.com/fire-protection/providers/johnson-controls-security-solutions-llc/) — based in Fort Worth, TX; fire alarm; registrations: ACR-1460; phone: 561-341-7639
- [Kastle Systems of Texas LLC](https://plumbregistry.com/fire-protection/providers/kastle-systems-of-texas-llc/) — based in Houston, TX; fire alarm; registrations: ACR-2142; phone: 703-528-8800
- [Korsar-Contracts LLC](https://plumbregistry.com/fire-protection/providers/korsar-contracts-llc/) — based in Austin, TX; fire alarm; registrations: ACR-3365688; phone: 737-377-4077
- [Maestro Integrations LLC](https://plumbregistry.com/fire-protection/providers/maestro-integrations-llc/) — based in Austin, TX; fire alarm; registrations: ACR-3163226; phone: 512-436-2964
- [NSS](https://plumbregistry.com/fire-protection/providers/nss/) — based in Austin, TX; fire alarm; registrations: ACR-1787030; phone: 512-712-4310
- [NXP USA Inc](https://plumbregistry.com/fire-protection/providers/nxp-usa-inc/) — based in Austin, TX; fire alarm; registrations: ACR-2699; phone: 512-933-7332
- [Protech Texas Inc](https://plumbregistry.com/fire-protection/providers/protech-texas-inc/) — based in Lago Vista, TX; fire alarm, fire extinguisher and fire sprinkler; registrations: ACR-2043957, ECR-2044053, SCR-G-2141006; phone: 512-968-1994
- [Pye-Barker Fire & Safety LLC](https://plumbregistry.com/fire-protection/providers/pye-barker-fire-safety-llc/) — based in Waco, TX; fire alarm, fire extinguisher and fire sprinkler; registrations: ACR-2326761, ECR-2329916, HCR-2337459, SCR-G-2329912; phone: 806-777-3661
- [Rapid Fire Safety & Security LLC](https://plumbregistry.com/fire-protection/providers/rapid-fire-safety-security-llc/) — based in Austin, TX; fire alarm, fire extinguisher and fire sprinkler; registrations: ACR-3145787, ECR-3145794, SCR-G-3145797; phone: 314-306-1949
- [Redland Investments LLC](https://plumbregistry.com/fire-protection/providers/redland-investments-llc/) — based in Austin, TX; fire alarm; registrations: ACR-3416225; phone: 210-956-2907
- [Redline Fire LLC](https://plumbregistry.com/fire-protection/providers/redline-fire-llc/) — based in Austin, TX; fire alarm, fire extinguisher and fire sprinkler; registrations: ACR-3529658, ECR-3529717, SCR-G-3529383; phone: 844-617-3354
- [Ring Protect Inc](https://plumbregistry.com/fire-protection/providers/ring-protect-inc/) — based in Austin, TX; fire alarm; registrations: ACR-2236295; phone: 504-534-5201
- [Safequip, Inc.](https://plumbregistry.com/fire-protection/providers/safequip-inc/) — based in Austin, TX; fire alarm and fire extinguisher; registrations: ACR-1466, ECR-1249; phone: 512-835-7697
- [Securadyne Systems Intermediate, LLC](https://plumbregistry.com/fire-protection/providers/securadyne-systems-intermediate-llc/) — based in Austin, TX; fire alarm; registrations: ACR-3485065; phone: 919-815-8340
- [Shambaugh & Son LP](https://plumbregistry.com/fire-protection/providers/shambaugh-son-lp/) — based in San Antonio, TX; fire alarm, fire extinguisher and fire sprinkler; registrations: ACR-2226, ECR-2207061, SCR-G-0558; phone: 830-708-4978
- [Siemens Industry Inc](https://plumbregistry.com/fire-protection/providers/siemens-industry-inc/) — based in Irving, TX; fire alarm, fire extinguisher and fire sprinkler; registrations: ACR-1751584, ECR-1555, SCR-G-1918553; phone: 214-937-3555
- [Stokes Fire & Safety, LLC](https://plumbregistry.com/fire-protection/providers/stokes-fire-safety-llc/) — based in Austin, TX; fire alarm and fire extinguisher; registrations: ACR-1750789, ECR-3205613; phone: 512-496-0658
- [Teksystems Inc](https://plumbregistry.com/fire-protection/providers/teksystems-inc/) — based in Austin, TX; fire alarm; registrations: ACR-1820621; phone: 410-540-7953
- [Tesla Inc](https://plumbregistry.com/fire-protection/providers/tesla-inc/) — based in Austin, TX; fire alarm, fire extinguisher and fire sprinkler; registrations: ACR-2683645, ECR-2683615, SCR-G-2683637; phone: 832-627-8696
- [Texas Security Solutions](https://plumbregistry.com/fire-protection/providers/texas-security-solutions/) — based in Austin, TX; fire alarm; registrations: ACR-2114; phone: 512-293-8247
- [Thompson Safety LLC](https://plumbregistry.com/fire-protection/providers/thompson-safety-llc/) — based in Houston, TX; fire alarm, fire extinguisher and fire sprinkler; registrations: ACR-3361776, ECR-2217262, HCR-3427718, SCR-G-3361746; phone: 877-506-4291
- [Time Out Systems, inc](https://plumbregistry.com/fire-protection/providers/time-out-systems-inc/) — based in Austin, TX; fire alarm; registrations: ACR-3283170; phone: 404-384-0948
- [VA Fire Detection](https://plumbregistry.com/fire-protection/providers/va-fire-detection/) — based in Austin, TX; fire alarm; registrations: ACR-2608768; phone: 512-698-0776
- [Vital Security LLC](https://plumbregistry.com/fire-protection/providers/vital-security-llc/) — based in Austin, TX; fire alarm; registrations: ACR-1666002; phone: 512-772-4050

## Elsewhere in Travis County

- [1st Fire Safety LLC](https://plumbregistry.com/fire-protection/providers/1st-fire-safety-llc/) — based in Cedar Park, TX; fire alarm, fire extinguisher and fire sprinkler; registrations: ACR-2375658, ECR-1953562, HCR-2543640, SCR-G-2552995; phone: 512-777-1555
- [AFP Alarm & Detection LP](https://plumbregistry.com/fire-protection/providers/afp-alarm-detection-lp/) — based in Pearland, TX; fire alarm; registrations: ACR-3429; phone: 281-485-6803
- [Blackhawk Fire & Safety LLC](https://plumbregistry.com/fire-protection/providers/blackhawk-fire-safety-llc/) — based in Pflugerville, TX; fire alarm, fire extinguisher and fire sprinkler; registrations: ACR-2663822, ECR-2640551, SCR-G-2822290; phone: 512-786-1807
- [DSI Fire and Security Inc](https://plumbregistry.com/fire-protection/providers/dsi-fire-and-security-inc/) — based in Lakeway, TX; fire alarm; registrations: ACR-2684355; phone: 636-887-6610
- [Dyezz Fire Controls](https://plumbregistry.com/fire-protection/providers/dyezz-fire-controls/) — based in Pflugerville, TX; fire alarm; registrations: ACR-2713; phone: 512-331-2788
- [Entech Sales & Service LLC](https://plumbregistry.com/fire-protection/providers/entech-sales-service-llc/) — based in Dallas, TX; fire alarm and fire extinguisher; registrations: ACR-1404, ECR-1916816; phone: 972-241-8188
- [Folks Fire Alarm Inc](https://plumbregistry.com/fire-protection/providers/folks-fire-alarm-inc/) — based in Lago Vista, TX; fire alarm; registrations: ACR-1684221; phone: 512-963-0039
- [In Charge Security LLC](https://plumbregistry.com/fire-protection/providers/in-charge-security-llc/) — based in Round Rock, TX; fire alarm; registrations: ACR-2138578; phone: 512-778-6240
- [JM Electronic Engineering, Inc.](https://plumbregistry.com/fire-protection/providers/jm-electronic-engineering-inc/) — based in Pflugerville, TX; fire alarm, fire extinguisher and fire sprinkler; registrations: ACR-1750618, ECR-932, SCR-G-0121; phone: 512-244-1212
- [Koetter Fire Protection Of Austin LLC](https://plumbregistry.com/fire-protection/providers/koetter-fire-protection-of-austin-llc/) — based in Pflugerville, TX; fire alarm, fire extinguisher and fire sprinkler; registrations: ACR-2199, ECR-1751451, SCR-G-0673; phone: 512-251-7888
- [Legacy Fire Protection LLC](https://plumbregistry.com/fire-protection/providers/legacy-fire-protection-llc/) — based in The Hills, TX; fire alarm and fire extinguisher; registrations: ACR-3099233, ECR-3099238; phone: 512-934-2666
- [P & D System Control LLC](https://plumbregistry.com/fire-protection/providers/p-d-system-control-llc/) — based in Del Valle, TX; fire alarm; registrations: ACR-2787166; phone: 512-676-1345
- [Patriot Consulting Group LLC](https://plumbregistry.com/fire-protection/providers/patriot-consulting-group-llc/) — based in Pflugerville, TX; fire alarm; registrations: ACR-3193150; phone: 737-294-3339
- [Pflugerville Independent School District](https://plumbregistry.com/fire-protection/providers/pflugerville-independent-school-district/) — based in Pflugerville, TX; fire alarm; registrations: ACR-2667830; phone: 512-594-1984
- [Pinnacle Fire Protection, LLC](https://plumbregistry.com/fire-protection/providers/pinnacle-fire-protection-llc/) — based in Round Rock, TX; fire alarm, fire extinguisher and fire sprinkler; registrations: ACR-1751003, ECR-1941, SCR-G-1030; phone: 512-244-6001
- [RedStone Security & Fire LLC](https://plumbregistry.com/fire-protection/providers/redstone-security-fire-llc/) — based in Lago Vista, TX; fire alarm; registrations: ACR-2866226; phone: 512-897-1950
- [Saber Security Systems Inc](https://plumbregistry.com/fire-protection/providers/saber-security-systems-inc/) — based in Round Rock, TX; fire alarm; registrations: ACR-1766; phone: 512-341-8700
- [Vanguard Fire Systems LP](https://plumbregistry.com/fire-protection/providers/vanguard-fire-systems-lp/) — based in Pflugerville, TX; fire alarm, fire extinguisher and fire sprinkler; registrations: ACR-2445, ECR-1751614, SCR-G-0484; phone: 512-989-1600

## FAQ

**How do I check that a fire alarm company in Austin is licensed?**

Search the company name or registration number in the Texas State Fire Marshal's Office public lookup (https://appscenter.tdi.texas.gov/reports/p/sfmo). Every company listed here shows its registration numbers and expiration dates, re-checked against state records on each data refresh.

**What license does a fire alarm company need in Texas?**

Companies doing this work must hold a Texas SFMO Fire Alarm Certificate of Registration (ACR). Texas requires a State Fire Marshal's Office certificate of registration for each type of work: fire alarm (ACR), fire extinguisher (ECR) and fire sprinkler (SCR). Individual technicians must also hold SFMO licenses.

**Does a company need to be located in Austin to work there?**

No. Texas registrations are statewide, so companies based elsewhere in Travis County or across Texas can work in Austin. Confirm the service area with the company.

_Source: Texas Department of Insurance, State Fire Marshal's Office licensee records (https://appscenter.tdi.texas.gov/reports/p/sfmo), retrieved October 24, 2026. Published by Plumb Registry._