There’s no shortage of players in the telecom software development market, but operators consistently select the wrong partners for OSS/BSS modernization. This is a systemic challenge rather than a skills gap.
A lot of software development firms tout cloud migration and AI-powered operations experience, yet they don’t offer the necessary network orchestration experience or data monetization capabilities. Likewise, software integration companies specializing in telecom lack the modern AIOps or cloud-native architecture experience that today’s operators require to succeed in 2026.
Most rankings focus on company size and market presence. We ranked them by actual delivery in the areas that really count: network orchestration, data monetization, and AI-powered operations.
We looked at seven firms that have successfully completed OSS/BSS modernization projects. From there, we narrowed it down to those that specialize in cloud migrations, are experienced with telecom regulations, and offer enterprise software development and delivery. Take a look at how the top four rank across the board.
Why OSS/BSS Modernization Matters
The OSS/BSS system in place is holding back revenue growth. An incumbent provider with legacy systems is hampered by lengthy and manual service provisioning and the inability to support real-time charging for 5G services due to the limitations of a billing system that has not evolved with the times for decades.
They’re missing out on revenue opportunities from 5G-based new services that are available to market today while their competitors introduce the network slicing capability and innovative services, such as dynamic pricing, that AI-driven network slicing is making possible in a few weeks.
Modernization allows you to address these business challenges while also realizing new revenue generation opportunities, such as:
- Elastic infrastructure that scales up or down as needed (cloud), reducing over-provisioned costs of capital.
- AIOps platforms can predict and detect outages and automate remediation steps, reducing mean time to repair by 40-60% compared to conventional reactive monitoring.
- Consolidated data that enables a unified data platform with integrated analytics for a holistic customer view and experience, enabling personalized offers and services, proactive churn prevention, and more.
This requires the right partner to deliver business outcomes, not only technical improvements.
Top 7 Telecom Software Development Companies
We filtered for firms with proven OSS/BSS modernization delivery, cloud orchestration depth, and AI-driven operations expertise—the three pillars legacy operators need most. The seven below combine network engineering credibility with enterprise-scale transformation track records. Each brings a distinct strength to data monetization, AIOps, or cloud-native migration.
Avenga
Avenga is a software engineering and technology consultancy established in 2019 that provides telecom software development services through a dedicated telecom modernization practice. The company specializes in OSS modernization, network orchestration, and BSS-aligned data platforms. Its 250+ data and AI experts deliver AIOps, machine learning, and predictive analytics solutions that help operators detect network issues, automate remediation, and reduce revenue loss.
Operators with legacy limitations have a partner that understands the language of telecoms and has supported the onboarding of over 500 million subscribers and connected 10 million homes to fibre networks on past projects. Its multi-cloud enablement service on AWS, Microsoft Azure, and Google Cloud enables the migration of telco workloads to new environments while maintaining compliance and business operations. Data monetisation pipelines enable telecom operators to unlock new revenue opportunities based on subscriber and network data. It is scalable.
Its IoT connectivity platform with telemetry, lifecycle, device management, and automation enables large deployments and allows operators to go beyond voice and data services. Avenga provides transformation services that go beyond technology and help operators transform their operational models and automate their business processes, and it provides services that can help them keep shipping their content as an add-on.
Key Features:
- 250+ AI & data talent for telco-ready AIOps
- OSS modernisation and network orchestration with modular architectures
- Multi-cloud migration (AWS, Azure, Google Cloud) for scalability
- BSS data monetisation platforms to turn network data into revenues
- Monitoring & ongoing lifecycle services to support critical infra
Glorium Technologies
Glorium Technologies is a full-cycle software development company that offers telecom software development services for operators, service providers, and digital media businesses. Since 2010, they’ve helped clients modernize legacy systems, boost operational efficiency, and create scalable platforms for digital growth. Their work includes consulting, custom development, AI integration, cloud solutions, system integration, and long-term support.
They partner with a wide range of clients — telecom operators, ISPs, media companies, OTT providers, streaming platforms, gaming firms, news organizations, and equipment manufacturers. Glorium builds web, mobile, and desktop applications focused on better customer experiences and smoother operations. The company reports delivering over 150 projects, a 99% client satisfaction rate, and consistent service since 2010.
Key Features:
- Custom telecom software development and digital transformation
- Operations Support Systems (OSS) and Business Support Systems (BSS)
- Charging, billing, CRM, and customer self-service portals
- Data analytics, AI-powered solutions, and recommendation engines
- Network and service management platforms
- Media software development, including OTT, VoD, live streaming, CMS, and digital asset management systems
- Cloud-native applications, ERP integration, and system modernization
- Advanced technology integration, including AI, IoT, blockchain, and AR/VR
Chetu
Chetu is a custom software development company that provides telecom software development services for communications service providers, telecom enterprises, and technology companies. With more than 25 years of experience, the company develops scalable, secure, and AI-enabled applications that help modernize telecom infrastructure, streamline operations, and support digital transformation. Its services include custom development, system integration, cloud communications, and long-term application support.
Chetu works with telecom providers and enterprises to build interoperable software that integrates with legacy systems while supporting emerging technologies such as AI, 5G, and IoT. The company also provides telecom integration services for cloud communication platforms, business messaging, CRM telephony, and contact center solutions. According to Chetu, it has 25+ years of industry experience, 7,000+ clients, and has developed 20,000+ software applications across multiple industries.
Key Features:
- Custom telecom software development and consulting
- Operations Support Systems (OSS) and Business Support Systems (BSS)
- Network management systems and telecom business intelligence (BI) platforms
- VoIP-based communication solutions and unified communications
- Telecom billing, revenue management, and expense management software
- Telecom analytics, IoT solutions, and DevOps services
- API integration with CRM platforms, contact centers, cloud communications, and enterprise systems
- AI-powered telecom applications and solutions designed for 5G, IoT, and future-ready architectures
Itransition
Since 1998, Itransition has provided telecom operators with 28 years of experience delivering enterprise software for their OSS/BSS modernization initiatives. A Microsoft Solutions Partner since 2008 that holds specializations in both Data & AI and Digital & App Innovation, the company enables operators to implement cloud-native transformations in their Microsoft Dynamics 365, Salesforce, AWS and SAP Commerce deployments, serving a vital role for telcos moving from legacy billing and provisioning systems to AI-enabled, orchestrated solutions. Their digital transformation, ERP systems, CRM implementation, and business process management capabilities are directly applicable to telecom modernization efforts requiring complex integration capabilities.
In 28 years, Itransition has assisted 800+ organizations to create, modernize, and scale their digital solutions with its software development, technology consulting, and digital transformation services, making it an excellent potential fit for telcos undergoing a move from monolithic OSS/BSS to data-ready, microservices architectures. Its Dynamics 365 and Odoo ERP efforts are further examples of large-scale system integration and process automation capabilities that telcos need when replacing decades-old billing platforms with cloud-native solutions.
Key Features:
- 28 years serving customers in 40 countries
- Microsoft Data & AI specialization, 2008-present
- AWS, Dynamics 365, Salesforce, SAP Commerce integrations
- Core services: ERP, CRM, business process management
- Best Software Development Company 2024, Clutch
Luxoft
For a company that calls itself “the software-defined company,” the slogan rings especially true in its telecom software development services, particularly when modernizing OSS/BSS applications still tied to outdated, hardware-centric architectures. Since 2000, Luxoft has helped enterprises with legacy system modernization and large-scale digital transformation, applying the same software-defined approach to telecom environments that require flexible, remotely orchestrated network operations.
Luxoft has managed over 1,000 engagements in a portfolio totaling more than US$2.5 trillion in client value, meaning they are well-versed in all the technical debt that telecoms carry, which is especially useful when decommissioning monolithic billing platforms and replacing them with cloud-native microservices that must operate without service interruption.
They have a risk-management platform for Everstream analytics, in addition to cross-industry transformation experience, which indicates they are able to design platforms that address the dual need of keeping abreast of ever-evolving regulatory requirements while simultaneously accelerating operations, precisely the kind of situation many telecoms find themselves in today while seeking to modernize their OSS/BSS and honor SLA terms.
Key Features:
- 26 years of enterprise-scale digital transformation experience.
- Over 1,000 engagements in telecoms and related industries.
- Software-defined infrastructure and remote repair capabilities.
- US$2.5 trillion in client value delivered through a portfolio of engagements.
- Full suite of enterprise technology services.
EffectiveSoft
EffectiveSoft provides telecom software development services backed by 25 years in the market and more than 1,800 successful projects. The company delivers AI-enabled product engineering and full-spectrum software development, helping telecom providers build modern, scalable solutions while drawing on experience across industries such as healthcare, financial services, and ISV/SaaS.
The firm’s core strength lies in combining engineering fundamentals with AI to scale, secure, integrate, and sustain AI inside real products, making them a natural fit for telecom operators navigating OSS/BSS modernization where production reliability is non-negotiable. Their custom software development approach spans cloud migration and optimization, mobile app development, web applications, and enterprise desktop software—the full stack telecom operators need when replacing legacy infrastructure.
GDPR compliance and Microsoft Azure, AWS, Google Cloud Platform, and Oracle Cloud Infrastructure support signal enterprise-grade delivery across multi-cloud environments.
Key Features:
- AI and machine learning core competency across 1,800+ projects
- Multi-cloud migration expertise: Azure, AWS, GCP, Oracle
- GDPR-compliant delivery for regulated telecom environments
- Business analysis and UX/UI design for end-to-end transformation
- 11-50-person team with deep systems engineering roots
ScienceSoft
With 37 years of experience, ScienceSoft supports telecom OSS/BSS modernization through custom development, AI, and consulting. Founded in 1989, they provide end-to-end help for application modernization, analytics, and cloud migrations — useful for operators updating billing and network systems.
Their HIPAA background gives them a good foundation for telecom compliance, data sovereignty, and privacy controls. ScienceSoft excels at keeping projects on schedule and within budget, even when priorities shift. They also deliver AI capabilities for predictive maintenance and churn analytics, though their telecom-specific examples and network orchestration depth are not as prominent.
If you value strong project management and steady execution over specialized telecom branding, ScienceSoft is worth considering for complex legacy transformations.
Key Features:
- 37 years delivering custom software and AI consulting
- HIPAA compliance expertise for regulated industries
- G2-rated managed IT services for enterprise clients
- Application modernization and data analytics capabilities
- Result-focused delivery under budget and time constraints
Conclusion
Many telecom software comparisons miss the practical difficulties operators face with network orchestration, data monetization, and AI operations. The top seven companies earned their spot through real results in large-scale OSS/BSS modernization, blending cloud-native technology with strict compliance and transformation experience.
The right partner should understand both legacy systems and modern automation needs. Take time to match your current pain points with the criteria we discussed — proven delivery, cloud depth, AIOps maturity, regulatory alignment, and enterprise-scale experience. Then request discovery prototypes from your shortlist to test their solutions against your actual network before moving forward.
