Independent
Evidence you can trust
An objective view of network performance that reduces subjective debate and creates a stronger basis for action.
About Nexibium
Independent network intelligence with a governance mindset.
Nexibium helps mobile operators, MVNOs, neutral-host providers and enterprise connectivity teams understand how networks perform in the real world. We connect field evidence, network intelligence and structured governance to support clearer operational, commercial and investment decisions.
Specialist
Built for telecom
Focused expertise across coverage, signal quality, voice, data, benchmarking, MVNO assurance and private wireless validation.
Practical
Designed for decisions
Dashboards, evidence packs and executive reporting that make technical performance useful across engineering, commercial and leadership teams.
Leadership & Advisory Team
Key People
Leadership
Sumit Bhatnagar
Founder & Managing Director
Sumit Bhatnagar is the Founder and Managing Director of Nexibium, with more than 18 years of experience across mobile networks, MVNO operations, quality assurance, compliance, supplier governance and customer experience.
His career includes senior telecom leadership roles at Lebara and work within BT’s Mobile Innovation Labs, giving him experience across both operator and service-provider environments.
At Nexibium, Sumit leads the development of independent network intelligence, benchmarking and assurance services that turn real-world network performance into clearer operational, commercial and investment decisions.
MVNO performance
Network benchmarking
Supplier governance
CoverageIQ™, SignalIQ™ & VECTOR™
Strategic Advisor
Lisa Lessels
Telecom Assurance & Transformation
Lisa Lessels is a senior telecom assurance and transformation leader with more than 30 years of experience across quality assurance, integration, operational change, supplier governance and large-scale technology delivery.
She has held senior roles across Orange, EE and BT, supporting converged network capabilities, mobile network evolution, digital transformation and complex end-to-end test and integration programmes spanning mobile networks, IT and customer-facing platforms.
At Nexibium, Lisa advises on telecom assurance, supplier governance and transformation, helping ensure that services and client engagements are designed with the rigour expected in complex enterprise telecom environments.
Telecom assurance
Quality governance
Supplier management
Transformation delivery
Strategic Advisor
Mark Fletcher
Enterprise Growth & Strategic Partnerships
Mark Fletcher is an enterprise technology and data governance leader with experience across major telecom and technology organisations, including BT, EE, SAP and Red Hat, as well as specialist data-governance businesses.
He brings senior expertise in go-to-market strategy, strategic partnerships, enterprise account development and customer-led digital transformation. His work centres on connecting business priorities with scalable technology and data-governance solutions.
At Nexibium, Mark advises on enterprise growth, commercial positioning and strategic partnerships, helping translate technical network-intelligence capabilities into clear business value for senior decision-makers.
Enterprise growth
Data governance
Strategic partnerships
B2B positioning
Our Operating Model
Measurement, intelligence and governance working as one system.
Our leadership team owns delivery and client outcomes, while specialist advisors provide targeted challenge and guidance where their expertise is most relevant.
01 · Measure
CoverageIQ™
Structured field testing and benchmarking that converts real-world voice, data and radio measurements into dashboards, KPI views and decision-ready evidence.
02 · Detect
SignalIQ™
Broader network intelligence that helps identify coverage gaps, performance patterns, customer-experience risks and priority areas for deeper investigation.
03 · Govern
VECTOR™
A structured assurance methodology that turns measurement and intelligence into comparable evidence, clear reporting, agreed actions and repeatable improvement cycles.