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Spirent Communications
Spirent is enabling innovation, making connections. Those who build or deliver networks, connected devices, and communication services depend on us. #AskSpirent
About Spirent Communications
Spirent Communications is a global leader in providing lifecycle service assurance solutions for 5G and cloud-native networks. The company specializes in testing and assurance services that help clients ensure the performance, reliability, and security of their network infrastructures. Spirent serves a diverse range of clients, including telecommunications companies, network equipment manufacturers, and service providers, operating primarily in the technology and telecommunications markets.
Spirent's business model revolves around offering a suite of testing solutions that cover the entire technology lifecycle, from proof of concept to subscriber experience. These solutions include automated testing, performance monitoring, and network validation, which are crucial for the deployment and maintenance of next-generation networks. The company generates revenue through the sale of its testing solutions, subscription-based services, and professional consulting.
Spirent's focus on innovation and customer success has positioned it as a trusted partner in the rapidly evolving landscape of 5G and cloud-native technologies. By providing expert guidance and methodologies, Spirent helps its clients navigate the complexities of modern networks and deliver on their promises of performance to their own customers.
Source: Dealroom company dataAt a glance
- Status
- Listed
- Founded
- 1936
- Headquarters
- Crawley, United Kingdom
- Listing
- IPO 1993
- Employees
- 1,608
- Open positions
- 4
- Dealroom signal
- 29.7/100
- Sector
- Aviation, Telecommunications, Testing, Geopositioning, PR, Risk Management, Analytics, Innovation Radar, Aviation and Aerospace, Cybersecurity, Space Tech, ESA
- Technology
- Deep Tech
- Business model
- SaaS
- Client focus
- b2b
- Investment activity
- 11 companies, latest Apr 2016
- Capital deployed
- $7M
- Preferred round
- ACQUISITION
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| ACQUISITION✓Exit | Oct 2025 | $1.6B | $1.6B | Keysight Technologies | ↗ |
| ACQUISITION✓Exit | Mar 2024 | — | $1.3B | Viavi Solutions | ↗ |
Financials
Revenue, earnings and other financial measures where available. Years marked “E” are estimates.
Growth signals
Latest recorded traffic for Spirent Communications is 50K monthly website visits, down 39.8% over the last three months. Spirent Communications's team declined 20.8% over the past year.
Open positions
Similar companies
Company identity and context are open; selected comparison metrics preview what is available on the platform.
Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
JolataSan Jose, United StatesCompany which delivers high-precision network performance analytics services
$28Mvaluation
Testing Technologies ISTBerlin, GermanyTesting Technologies IST designs and markets test development tools for automated testing
$2.2Mvaluation
EpitiroCardiff, United KingdomRemote internet performance monitoring for Ethernet, Wi-Fi, and LTE networks, ensuring service quality and customer satisfaction
$8Mvaluation
NetGendAustin, United StatesNetgend is operates an application performance testing platform
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DT
DAX TechnologiesNewton, United StatesLeading provider of customer experience management (“cem) solutions for telecommunication providers
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MW
Metrico WirelessFrederick, United StatesUser & Service Experience - Spirent
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Mu DynamicsSunnyvale, United StatesIn-app awareness networks that enable service providers to manage network traffic for better performance and security
$40Mvaluation
The Fanfare GroupMountain View, United StatesNetwork, devices & services testing - Spirent
$15Mvaluation
IN
Imperfect NetworksHolyoke, United StatesSolutions for securing network equipment
$8Mvaluation
NS
Net-HOPPER SystemsNorcross, United StatesNet-HOPPER Systems designs, develops, and markets network test access systems (NTAS)
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Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed1 investor entered at this stage
EUSPA
Other known investors4 additional known investors
Keysight Technologies
Viavi Solutions
Fraunhofer Venture
Kortschak Investments
Source: Dealroom Talent Intelligence.
Global footprint
Market sentiment
An AI-synthesised read of the highest-engagement posts about Spirent Communications on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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