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Company · Fire protection services

Koorsen Fire & Security

As of 3 November 2026, Koorsen Fire & Security has 68 open roles (27 new in 30 days), its skilled trades and field service team is hiring most, and its postings name Microsoft Excel, Microsoft Office and Microsoft Outlook as the tools the team works in.

As of 3 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.

, United States1001-5000 employees50M-250M revenue, est.B2B, B2Ckoorsen.com ↗LinkedIn ↗
Headquarters
, , United States
Employees
1001-5000 employees (linkedin)
Sells to
healthcare, industrial, education
Certifications on site
Site languages
EN
Career system
Adp
68open roles · 27 new in 30 days
10tools named in postings
United Stateshiring locations
0change signals read in postings
02What they do, whom they sell to, who else does it

Koorsen Fire & Security in one screen

Read from koorsen.com: what the company does, the customers it names, the buyers we can actually see, and the companies that sell the same thing.

What Koorsen Fire & Security does

Koorsen Fire & Security is a fire and security services company that provides fire protection, security, communications, and facilities management for businesses and homes. Its offerings include fire extinguishers, alarms, sprinklers, intrusion detection, access control, video surveillance, and emergency notification systems. It also runs additional businesses in construction, environmental services, and combustible dust remediation, serving clients across the Midwest and South.

fire extinguishersfire alarmsfire sprinklersfire suppressionintrusion detectionaccess controlvideo surveillanceemergency notification
Whom it sells to

Named on the site: healthcare, industrial, education, restaurants, property management, hospitality, retail, construction.

Who else sells this

Nearest companies by what they do, sell and whom they serve, 51+ employees. 549 scored.

Pye-Barker Fire & SafetyUnited States · 5001-10000 employeesFire Safety and Protection, LLCUnited States · 201-500 employeesKoetter Fire ProtectionUnited States · 51-200 employeesA&E Fire and Security LtdUnited Kingdom · 51-200 employeesBrothers Fire & SecurityUnited States · 51-200 employeesFortis Fire & SafetyUnited States · 201-500 employees
03Tech stack, with the evidence

What Koorsen Fire & Security says it runs

Tools named in the company's own postings as the team's systems, with the sentence that says so. What the website and DNS show is listed separately.

Microsoft ExcelSkilled trades and field service · medium confidence · 52 postings
• Proficiency working in Microsoft Suite: Outlook, Word, Excel, and PowerPoint
Fire Systems Inspector · first seen 2026-06-10
Microsoft OfficeSkilled trades and field service · medium confidence · 52 postings
• Proficiency working in Microsoft Suite: Outlook, Word, Excel, and PowerPoint
Fire Systems Inspector · first seen 2026-06-10
Microsoft OutlookSkilled trades and field service · medium confidence · 52 postings
• Proficiency working in Microsoft Suite: Outlook, Word, Excel, and PowerPoint
Fire Systems Inspector · first seen 2026-06-10
Microsoft WordSkilled trades and field service · medium confidence · 52 postings
• Proficiency working in Microsoft Suite: Outlook, Word, Excel, and PowerPoint
Fire Systems Inspector · first seen 2026-06-10
Microsoft PowerPointSkilled trades and field service · medium confidence · 48 postings
• Proficiency working in Microsoft Suite: Outlook, Word, Excel, and PowerPoint
Fire Systems Inspector · first seen 2026-06-23
Intercommedium confidence · 6 postings
• Manage the installation of Security products and systems including; Intrusion, Video Surveillance, Access Control, Intercom, and Monitoring
Project Manager - National Accounts · first seen 2026-07-02
Smartsheetmedium confidence · 1 posting
• Proficiency working in Microsoft Suite: Outlook, Word, Excel, and PowerPoint and SmartSheet
Project Manager Fire Alarm · first seen 2026-10-12
Apache Ignitelow confidence · 7 postings
• Maintain pipeline data in Ignite – Sales Tracker
Fire Alarm Sales · first seen 2026-07-07
LenelS2 OnGuardlow confidence · 1 posting
• Certifications in Lenel, Software House and Prowatch strongly preferred.
Security Systems Service Technician - Cincinnati, OH · first seen 2026-09-25
Software Houselow confidence · 1 posting
• Certifications in Lenel, Software House and Prowatch strongly preferred.
Security Systems Service Technician - Cincinnati, OH · first seen 2026-09-25
On the website or in DNS

Vendors whose code loads on koorsen.com or whose records sit in its DNS. Page plumbing (libraries, fonts, consent banners) is left out.

Cloudflareseen on koorsen.comHubSpotseen on koorsen.comAdobeseen on koorsen.comAutodeskseen on koorsen.comBarracudaseen on koorsen.com
Microsoft 365seen on koorsen.com
Microsoft Entra IDseen on koorsen.com
microsoft_intuneseen on koorsen.com
microsoft_teamsseen on koorsen.com
SendGridseen on koorsen.comSophosseen on koorsen.com
04Hiring

68 open roles, 56 opened in 90 days

Read hourly from the company's career system. Open roles and new roles in the last 30 days, by team. Companies hiring skilled trades and field service in United States →

Open roles by team
open · new 30 d
Skilled trades and field service
38 · 13
Quality, safety & environment
13 · 7
Sales
5 · 2
Product, program & project management
3 · 1
Construction and civil
2 · 1
Customer service & success
2 · 2
Logistics warehouse and transport
2 · 1
Administration & office
1 · 0
Education & training
1 · 0
Facilities cleaning and security
1 · 0
Newest postings
Service CoordinatorLouisville · Customer service & success · order and service coordination · Entry · names Microsoft Office, Microsoft Outlook, Microsoft Word, Microsoft Excel, Microsoft PowerPointFire Extinguisher Technician - Entry LevelTerre Haute · Skilled trades and field service · fire protection systems · EntryProject ManagerIndianapolis · Product, program & project management · project management · Manager · names Intercom, Microsoft Office, Microsoft Outlook, Microsoft Word, Microsoft Excel, Microsoft PowerPointFire Systems InspectorMuncie · Quality, safety & environment · building and construction inspection · Entry · names Microsoft Office, Microsoft Outlook, Microsoft Word, Microsoft Excel, Microsoft PowerPointFire Extinguisher Technician - Entry LevelHuntsville · Skilled trades and field service · fire protection systems · EntryInventory ControlFort Wayne · Logistics warehouse and transport · stock and inventory control · Entry · names Microsoft Office, Microsoft Outlook, Microsoft Word, Microsoft Excel, Microsoft PowerPointSecurity Systems Installation Technician - intermediateIndianapolis · Skilled trades and field service · low voltage telecom and security systems · Mid · names Microsoft Office, Microsoft Outlook, Microsoft Word, Microsoft Excel, Microsoft PowerPointSecurity Systems Installation Technician - experiencedIndianapolis · Skilled trades and field service · low voltage telecom and security systems · Mid · names Microsoft Office, Microsoft Outlook, Microsoft Word, Microsoft Excel, Microsoft PowerPoint
05Signals

What is changing, read from the postings

Intents are events the employer states about itself, each with the sentence and the posting it came from.

No change signals read in the current postings.

Decision makers at Koorsen Fire & Security, with verified e-mails, and every change the moment it is posted.

Sales, marketing and IT leaders by function. Add Koorsen Fire & Security to a monitor and get a webhook when a role opens, a tool appears or a signal is read.

Start free, no card. The first 20 are above; e-mails are verified at the mail server when you open them.

06Lookalikes

Companies like Koorsen Fire & Security

Nearest by what they do, what they sell and whom they sell to, 51+ employees. 6 of 549 scored.

Pye-Barker Fire & SafetyFire protection services · United States5001-10000 employees
Fire Safety and Protection, LLCFire protection services · United States201-500 employees
Koetter Fire ProtectionFire protection services · United States51-200 employees
A&E Fire and Security LtdFire protection services · United Kingdom51-200 employees
Brothers Fire & SecurityFire protection services · United States51-200 employees
Fortis Fire & SafetyFire protection services · United States201-500 employees
07Profile

From the company's own website

Legal nameKoorsen Fire & Security
IndustryBusiness & finance services · Fire protection services
Offeringsfire extinguishers · fire alarms · fire sprinklers · fire suppression · intrusion detection · access control · video surveillance · emergency notification
Target customershealthcare · industrial · education · restaurants · property management · hospitality · retail · construction
Geographic scoperegional · also United Kingdom
Reviews found
Public contact points1 role addresses · 0 phone numbers
Pages readhome
Datescrawled 2026-09-09 · profiled 2026-09-12 · hiring built 2026-11-02
Cite this

Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.

Koorsen Fire & Security (, United States, 1001-5000 employees) has 68 open roles, 27 new in 30 days, and names 10 tools in its postings. (Breaknorm, 3 November 2026, https://breaknorm.co/company/koorsen.com)
How we know

Read from the source, not self-reported

Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →

  • ProfileBuilt from koorsen.com: summary, offerings, customers, certifications and contact points are extracted from its pages, with a confidence score per field.
  • HiringRead hourly from the company's Adp career site; reposts collapse into one record.
  • Tech stackTools the employer's own text names as the team's systems, with the quote; website scripts counted separately.
  • HeadcountLinkedIn where known, otherwise estimated from the site.
FAQ

Koorsen Fire & Security: questions

Does Koorsen Fire & Security use Microsoft Excel?

Yes, by the company's own words: 52 postings name it, first seen 2026-06-10, in the skilled trades and field service team.

Is Koorsen Fire & Security hiring?

68 open roles as of 3 November 2026, 27 opened in the last 30 days and 1 closed. The largest team hiring is skilled trades and field service.

Where does this profile come from?

From koorsen.com itself: we crawled it on 2026-09-09, built the profile on 2026-09-12, and read its career site (Adp) hourly since. Headcount is from LinkedIn.

Who should I write to at Koorsen Fire & Security?

The people are behind the login: decision makers by function, verified at the mail server when you open them. 1 public role addresses from the site are there too.

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