AT&T vs TCS: Revenue, Profit and Business Model
AT&T reported $125.6B of revenue in FY2025 and $22B of net income. TCS reported ~$31B of revenue in FY2026 and ~$5.7B of net income.
Latest financial snapshot
Financial summary
AT&T
AT&T's financial story is large revenue, large debt and a slow correction. The company funded the $48.5 billion DirecTV purchase in 2015 and the $85.4 billion Time Warner purchase in 2018 largely with borrowing, and net debt passed $180 billion after Time Warner closed. It then reversed course: WarnerMedia was separated in 2022, the dividend was cut, and the remaining 70% DIRECTV stake went to TPG in July 2025 for a $5.6 billion gain. FY2025 revenue was $125.6 billion, with $23.4 billion of total net income, $46.4 billion of adjusted EBITDA and $16.6 billion of free cash flow against $117.4 billion of net debt. Roughly $22 billion a year of capital investment goes mostly into fiber and 5G.
TCS
TCS reported FY2026 revenue of ₹2,67,021 crore ($30.017 billion), up 4.6% in rupees but down about 0.5% in dollars, with net income of about $5.71 billion (₹49,210 crore) and a 19.8% net margin. Q1 FY2027 revenue was ₹72,275 crore ($7.624 billion), up 13.9% in rupees and 2.7% in dollars year over year, with an operating margin of about 24% and net profit of ~$1.55 billion (₹13,349 crore). The growth story now rests on AI: TCS put its annualized AI services revenue at $1.8 billion in Q3 FY2026 and $2.6 billion in Q1 FY2027, while total contract value held at $9.5 billion for the quarter.
Revenue and profit by year
AT&T
| Year | Revenue | Net income | Margin | Growth | Source |
|---|---|---|---|---|---|
| FY2025 | $125.6B | $22B | 17.5% | +2.7% | Source |
| FY2024 | $122.3B | $10.9B | 8.9% | -0.1% | Source |
| FY2023 | $122.4B | $14.4B | 11.8% | +1.4% | Source |
| FY2022 | $120.7B | -$8.5B | -7.1% | -9.9% | Source |
| FY2021 | $134B | $20.1B | 15.0% | -6.3% | Source |
| FY2020 | $143.1B | -$5.2B | -3.6% | -21.1% | Source |
| FY2019 | $181.2B | $13.9B | 7.7% | +6.1% | Source |
| FY2018 | $170.8B | $19.4B | 11.3% | +6.4% | Source |
| FY2017 | $160.5B | $29.4B | 18.3% | -2.0% | Source |
| FY2016 | $163.8B | $13B | 7.9% | — | Source |
Where the revenue comes from
AT&T
- Mobility~71%
Wireless service plans and device sales. Segment revenue was $89.5 billion in 2025, of which $67.4 billion was service revenue and $22.1 billion equipment.
- Business Wireline~14%
Connectivity for businesses, from fiber and dedicated internet to legacy voice and data. Revenue fell to $17.2 billion in 2025 from $18.8 billion in 2024.
- Consumer Wireline~11%
Home broadband, led by AT&T Fiber and AT&T Internet Air. Revenue was $14.2 billion in 2025, with fiber revenue up 17.0% to $8.6 billion.
- Latin America~3%
Wireless service in Mexico. Revenue was $4.4 billion in 2025, up from $4.2 billion, with $145 million of operating income.
TCS
- IT services
Primary revenue source
Application development, maintenance, modernization and managed technology services.
- Consulting and transformation
Strategic growth stream
Business and technology transformation programs for large enterprises.
- Cloud, AI and cybersecurity
Fast-changing growth area
Cloud migration, AI, data, automation, cybersecurity and platform simplification.
- Business process services
Recurring enterprise stream
Technology-enabled operations and business process services.
- Platforms
Differentiated platform stream
Industry platforms such as TCS BaNCS and related software-led offerings.
Business model and strategy
AT&T
How it makes money
AT&T runs a capital-intensive network business. It buys licensed wireless spectrum, builds and upgrades cell sites, and trenches fiber, then charges consumers and businesses a monthly fee to use that network. Capital investment was $22.0 billion in 2025 against $125.6 billion of revenue.
Growth strategy
With the US smartphone market saturated, AT&T's growth depends on home internet and on keeping the wireless customers it has. It is building fiber, which passed 32.0 million consumer and business locations at the end of 2025 and carried 10.4 million subscribers, and it sells AT&T Internet Air fixed wireless where fiber is not available.
Competitive advantage
AT&T's advantage is the cost of replicating what it already owns. Its fiber network passed 32.0 million consumer and business locations at the end of 2025, and its mid-band 5G service covers more than 310 million people. Keeping that going took $22.0 billion of capital investment in 2025 alone, which is why the national market has three carriers rather than thirty.
TCS
How it makes money
TCS earns revenue through global IT services and consulting, built around eight industry verticals and geographic diversification.
Growth strategy
TCS is growing through AI, cloud modernization, cybersecurity, data, engineering services, platforms, large transformation deals, partnerships and deeper penetration of existing enterprise accounts.
Competitive advantage
TCS' advantage is delivery scale, Tata trust, large-account depth, industry domain expertise, training infrastructure, strong margins and a reputation for mission-critical execution.
Questions about AT&T vs TCS
Which company has higher revenue — AT&T Inc. or Tata Consultancy Services Limited?
AT&T Inc. reported $125.6B (FY2025), while Tata Consultancy Services Limited reported ~$31B (FY2026). By last reported revenue, AT&T Inc. is the larger business, with Tata Consultancy Services Limited reporting a smaller revenue base. Note: these are from different fiscal years and are not a direct like-for-like comparison.
What is the market cap of AT&T Inc. vs Tata Consultancy Services Limited?
AT&T Inc.'s market capitalisation stands at $174.4B, while Tata Consultancy Services Limited's is $84.0B. AT&T Inc. carries the higher market valuation, reflecting investors' expectations of its future earnings power relative to Tata Consultancy Services Limited.
Which is more financially efficient — AT&T Inc. or Tata Consultancy Services Limited?
AT&T Inc. generates $945k / employee in revenue per employee, while Tata Consultancy Services Limited generates $52k / employee. AT&T Inc. shows higher revenue efficiency per headcount, though this reflects business model differences — capital-light software companies routinely outperform labour-intensive manufacturers on this metric.
How do AT&T Inc. and Tata Consultancy Services Limited make money?
AT&T Inc. and Tata Consultancy Services Limited generate revenue in fundamentally different ways. AT&T Inc.: AT&T runs a capital-intensive network business. Tata Consultancy Services Limited: TCS earns revenue through global IT services and consulting, built around eight industry verticals and geographic diversification.
Which company is valued higher relative to revenue — AT&T Inc. or Tata Consultancy Services Limited?
On a price-to-sales (P/S) basis, AT&T Inc. trades at 1.4x P/S and Tata Consultancy Services Limited at 2.7x P/S. Tata Consultancy Services Limited commands a higher revenue multiple, typically indicating that investors expect faster growth or higher future margins compared to AT&T Inc.. A higher multiple is not inherently better — it may also signal that the stock is priced for perfection.
Is AT&T Inc. bigger than Tata Consultancy Services Limited?
By last reported revenue, AT&T Inc. ($125.6B (FY2025)) is the larger company compared to Tata Consultancy Services Limited (~$31B (FY2026)). Revenue scale is one dimension of size — market capitalisation, employee count, and geographic reach are also relevant depending on the context.
Figures come from each company's filings and the sources linked beside them. Amounts reported in another currency are shown in US dollars at an approximate rate and marked with ~. Back to the AT&T vs TCS overview