One Source —
TEM & Managed Services for Enterprise Technology Spend

Technology Expense Management (TEM) is the discipline of tracking, auditing, and optimizing spending across telecom, mobility, and cloud invoices. One Source goes beyond software-only TEM — their US-based team actively audits invoices for billing errors, resolves disputes with carriers on your behalf, processes payments, and provides consolidated reporting across all vendors. For enterprises managing dozens or hundreds of carrier invoices monthly, this active management approach recovers overcharges and eliminates the internal labor of processing complex telecom bills.

One Source is vendor-neutral — they do not have financial incentives tied to recommending any particular carrier or technology vendor. Their optimization recommendations are based on your actual usage data, contract terms, and market rates across all carriers. This independence allows them to recommend switching carriers, renegotiating contracts, or consolidating vendors based purely on cost and service quality rather than agency relationships.

One Source Managed Mobility Services covers the full wireless lifecycle for enterprise mobile fleets — device procurement, carrier plan activation and optimization, expense management, policy enforcement, and device retirement. This includes identifying unused lines, optimizing rate plans across carriers, managing upgrades and replacements, and providing visibility into mobile spend. It is designed for enterprises with large numbers of company-issued mobile devices where manual wireless management creates significant administrative overhead.

Organizations with multi-site networks that lack sufficient internal IT resources to handle network design, carrier procurement, and ongoing optimization are the primary fit. One Source handles network architecture design, carrier selection and negotiation, circuit implementation, and ongoing performance management — acting as an outsourced network operations function. This is particularly relevant for mid-market enterprises expanding locations rapidly or managing legacy network infrastructure alongside new SD-WAN deployments.

One Source's security practice includes certified security experts with experience supporting government programs including FBI and NSA environments. Their Managed Security Services deliver 24/7 monitoring, threat detection, and incident response — with the depth of expertise typically associated with government-grade security operations. This background makes One Source a strong fit for organizations in regulated industries or government-adjacent sectors with elevated security requirements.

No. Your agreement is signed directly with One Source — Fibi is not a party to it. Fibi's advisory is funded by a referral arrangement One Source maintains from their existing sales budget, which does not affect your pricing. Fibi evaluates One Source alongside competing TEM and managed services providers so you can compare scope, capabilities, and fit before committing.