Spending power
TheGrid Corporate Spending Power index would rate purchasing capacity from registry, scale and activity signals.
Spending power
Key facts
Counted staff
125
self-reported 51–200 band
Office countries
1
1 address
Company type
Public Company
self-reported
Description
--- We are now using the Frequentis LinkedIN site ---
Since 1989, C4i has led advancements in secure communications for the world’s most demanding mission-critical environments. C4i’s interoperable communications solutions are used by defence, governments and industry in more than 35 countries. C4i products enable rapid response times, interoperability and flexible asset utilization, and provide customers with ongoing cyber security protection.
Based in Melbourne, Australia, the C4i team design, manufacture and integrate communications solutions for clients all over the world.
From its Australian roots, C4i quickly established itself globally by winning local and international business. It has gone from strength to strength with various parent companies through a series of acquisitions and mergers:
1989 - Redflex 2006 - Longreach 2013, 2015, 2019 – ITT Exelis, Harris Corporation, L3Harris Technologies 2021 - Frequentis
For any enquiries, please contact us on www.c4i.com and we'll put you in contact with someone to discuss your specific interoperable communications needs.
Specialties
All 8 specialties
- Radio-Over-IP
- Radio Dispatch
- Radio Remote Control
- Secure Voice Conferencing
- Networked Radio and Telephony Solutions
- Radio-IP Gateways
- Voice Communication Systems
- Mobile Dismount Applications
Locations
Country footprint
Show as table · Offices in 1 country
| Countries | 1 |
|---|---|
| Primary country | AU |
All codes: AU
Addresses
- AU380 St Kilda Rd; L3; Melbourne, Victoria 3004Primary
Grid intelligence Members
Signals & hiring
Hiring, headcount and registry-change signals, streamed to members.
Latest signal
Hiring activity
Headcount trend
Financials
Registry-filed capital and financial indicators, standardised by TheGrid.
Paid-up capital
Fiscal period
Registered charges
Revenue
Profit / loss
People & contacts
1 employee profiles on record · names withheld.
Names and titles are intentionally absent from this page. The source relation carries no consent record across the privacy regimes this directory spans, so it is never requested and never stored. Search engines see exactly what you see here.
Counts only. No names are stored here, and none are served.
FAQ
How many people work at C4i?
The record holds 125 counted staff profiles at January 2026, inside the self-reported 51–200 band.
Where does C4i have offices?
One address on record, Australia only. Primary: 380 St Kilda Rd, L3, Melbourne, Victoria 3004.
Has C4i raised funding?
None linked to this brand.
What does C4i list as its specialties?
Eight tags on the brand's own list, among them Radio-Over-IP, Radio Dispatch and Radio Remote Control.
Which companies are listed alongside C4i?
6 profiles list C4i as a peer — 82nd percentile in Telecommunications. It lists ten peers of its own. Airnav Technology Services Inc. and C4i Solutions list it back.