The global IT outsourcing market will clear $618 billion in 2026 on its way to $821 billion by 2031, and nearly everything else commonly written about it is stale. The "92% of big companies outsource" stat is from 2019. The "20-25% of deals fail" line has no traceable source this side of 2005. The real 2024-2026 data tells a sharper story: cost stopped being the reason companies outsource, AI is eating process outsourcing while IT outsourcing keeps growing, and most published market sizes disagree with each other by half a trillion dollars. Here are the numbers that actually check out.
How big is the IT outsourcing market?
Statista Market Insights projects global IT outsourcing revenue of $618.36 billion in 2026, growing at a 5.85% CAGR to $821.55 billion by 2031. The US is the largest buyer market at $225.26 billion. Statista's own 2026 growth figure is 7.29%, so this year runs ahead of the five-year average.
For scale: the full IT services segment, outsourced or not, runs about $1.69 trillion within Gartner's $5.43 trillion 2025 worldwide IT spend. Roughly a third of IT spend goes to IT services broadly; the $618B outsourcing slice is the part contracted out end to end.
Why do market-size estimates disagree by half a trillion dollars?
Analyst estimates for the 2025 IT outsourcing market span $409 billion (Straits Research) to $971.5 billion (Market Data Forecast), a gap bigger than most industries. The cause is scope: some count only infrastructure and application outsourcing, others fold in adjacent IT services; some measure buyer spend, others supplier revenue. Most credible estimates cluster at $610-660 billion (IMARC $622.8B, Mordor $618.1B, Statista $618.4B).
One conflation to avoid when citing: Statista's "US is the largest market" measures buyer spend; India's and the Philippines' headline figures below measure supplier revenue. They answer different questions.
What percentage of companies outsource?
Most large companies do, and plans still point up: 80% of executives plan to maintain or increase investment in third-party outsourcing, per Deloitte's Global Outsourcing Survey (2024, 500+ executives). Among US small businesses, 83% planned to maintain or increase outsourced-services spending in 2023, and a 2022 wave found 90% planning to outsource (Clutch).
By function (Deloitte's 2022 survey, the latest function-level data): 81% of executives use third parties for cybersecurity in full or part, and 96% credit service providers for building their data and analytics capability. The stat to retire: "92% of G2000 companies use IT outsourcing" is an ISG figure from 2019, still circulating undated.
Is outsourcing growing or dying?
Growing, slowly, and reshaping fast: contract value sits at record highs, growth is the slowest since 2020, and all of that growth is on the IT side while process outsourcing shrinks. The ISG Index for full-year 2025 (released January 15, 2026) shows managed-services contract value at a record $43.4 billion, up only 1.3%. Underneath, the split is the story: IT outsourcing ACV grew 2.4% to $32.5 billion while business-process outsourcing fell 14% to $7.3 billion, which we read as a market-level BPO total being repriced by AI. Engineering, R&D and design services went the other way, up 35% to $3.6 billion.
The quarterly trend is softer than the annual record suggests. Q4 2025 managed-services ACV was $10.9 billion, down 0.3% year over year, the second straight quarter of decline. Deal flow still held: ISG counted 2,058 new-scope awards for the year, up 6%, worth a record $29 billion in new-scope ACV. For 2026, ISG forecasts just 2.1% revenue growth for managed services against 20% for cloud-based (XaaS) services, which already reached $84.0 billion in 2025, up 29%. The combined market, managed services plus XaaS, hit $127.4 billion, up 18%. The money is moving to the cloud line, and traditional outsourcing is the slow lane of a fast market.
And the flow runs both ways now: 70% of executives have selectively insourced previously outsourced work in the past five years, and 78% operate global in-house centers (Deloitte 2024). The market is not shrinking; the default one-way pipeline is gone, and work moves to whoever holds the capability.
Why do companies outsource now?
For talent, not cost. Only 34% of companies cite cost reduction as their primary driver, down from 70% in 2020 and 48% in 2022, while 42% cite improved access to talent and 35% cite increasing customer demands (Deloitte 2024). Among organizations on outcome-based delivery models the cost share drops further, to 30%. The supporting data:
- 80% plan to maintain or increase third-party outsourcing investment.
- 67% have adopted outcome-based relationships with their providers, paying for results rather than hours.
- Half already use outsourced services for front-office capabilities like sales, marketing, and R&D.
The 2026 buyer is not shopping for cheaper hours; they are shopping for capabilities they cannot hire fast enough, and increasingly they are paying for the outcome.
How much does outsourcing actually save?
Mature vendor management is where the savings show up. Organizations with a mature vendor-management office see the payoff: 61% report third-party spend reductions of 20% or more directly attributed to it, and 90% report at least 10%, against 22% and 77% for developing or emerging VMOs (Deloitte 2024). Yet 70% of executives admit their vendor-management function is not fully mature, which is where the savings leak.
The underlying rate gap is real but narrower than the brochure version. The US median developer salary of $135,980 works out to about $65 an hour before employer costs (BLS, May 2025). Vendor rate cards for senior developers run $64-76 an hour in Europe, $60-75 in Latin America and $31-41 in Asia, with juniors at $31-39, $33-45 and $24-31 respectively, per Accelerance's survey of 60 outsourcing partners. Rates fell in every region in 2025: 4.4% in Europe, 7.1% in Latin America and close to 8% in Asia. Client-reported averages on Clutch tell the same story: $50-99 an hour in the US and Poland, $25-49 in Ukraine and India. The salary side of the same equation is in our developer salary statistics.
How is AI changing IT outsourcing?
AI is already inside most outsourcing relationships but not yet paying: 83% of executives use AI as part of their outsourced services, while only 25% report cost or quality gains from it (Deloitte 2024). The market-level evidence points the same direction:
- BPO contract value fell 14% in 2025 while IT outsourcing grew 2.4% (ISG), consistent with AI displacing repeatable process work, not engineering work.
- Cloud-based services grew 29% to $84.0 billion and engineering services 35%, the two lines where AI workloads actually land. ISG forecasts 20% XaaS revenue growth in 2026 against 2.1% for managed services.
- 20% of executives are already building strategies to manage "digital workers" alongside vendor staff.
Which countries lead IT outsourcing?
India leads on both rank and revenue; the Philippines owns business-process services; Eastern Europe competes on senior engineering. The data:
- India tops Kearney's Global Services Location Index (2023 edition, the latest published; India/China/Malaysia top three). Nasscom's February 2026 review revised the industry's FY2025 revenue up to $297 billion and projects $315 billion for FY2026, up 6.1%, with exports at about $246 billion (Nasscom via PTI). Headcount tells the AI story in one line: 5.95 million direct employees, up only 2.3% against 6.1% revenue growth.
- The Philippines: $40 billion export revenue and 1.9 million workers in 2025, up 5% and 4% respectively, against about 3% global industry growth; IBPAP's January 2026 baseline was $42 billion and 1.97 million jobs (IBPAP via Inquirer).
- Eastern Europe competes on a different axis: senior engineering in overlapping European time zones, inside the Europe-wide senior band of $64-76 an hour (Accelerance), which is why it shows up in software outsourcing specifically rather than volume BPO.
The outsourcing statistics that don't check out
Numbers to stop citing, and what to use instead:
- "92% of G2000 companies use IT outsourcing": ISG, 2019, recycled undated. Use Deloitte 2024's 80% maintain-or-increase instead.
- "20-25% of outsourcing deals fail within two years": traces to mid-2000s material; no verifiable recent primary source exists. The honest modern proxy is the vendor-management maturity gap above.
- "300,000 US jobs outsourced annually": attributed variously to four different firms, backed by no primary dataset anywhere. Anyone arguing outsourcing is good or bad for the US economy from that number is building on sand; the measurable 2024 facts are the two-way flow (70% have insourced work) and the talent-driven motive shift.
The datapoint that deserves the attention those three get: buyers who treat outsourcing as a capability partnership, with real vendor management and retained engineers who stay, are the ones Deloitte finds reporting 20%+ savings most often. In our experience, buyers who shop rate cards are the ones who fund the failure statistics. That difference in operating model, not geography or rate, is what our outsourcing services are built around.