BigBear.ai vs. Palantir: A Defense AI Stock Comparison

BigBear.ai (BBAI) and Palantir Technologies (PLTR) both sell software to U.S. defense and intelligence agencies, but a $447.88 billion company and a $1.50 billion company are not peers by most measures that matter to a researcher. Palantir's government segment alone brought in more revenue last quarter than BigBear.ai's entire business, while the two trade roughly 5.5 times apart on forward sales multiple.

Palantir Is Roughly 300 Times Larger Than BigBear.ai by Market Cap

Palantir Technologies closed August 31, 2026 with a market capitalization of $447.88 billion, at a share price of $186.38. BigBear.ai closed the same day at $1.50 billion, at a share price of $3.13 on 479.49 million shares outstanding. Dividing the two puts Palantir at roughly 299 times BigBear.ai's size. That gap is wide enough that grouping the pair as peer "defense AI stocks" understates how different a share of each company actually represents.

Palantir listed on the New York Stock Exchange through a 2020 direct listing and has since built a business spanning government and commercial software. BigBear.ai went public in 2021 through a merger with a special-purpose acquisition company and trades on the New York Stock Exchange as a small-cap, pre-profitability name. A direct listing and a SPAC merger carry different early-shareholder and lockup histories. A 10-K's risk-factor section spells out those differences in more detail than either company's marketing material does.

Neither Company Builds Drones or Any Other Hardware

Neither BigBear.ai nor Palantir builds a drone, a sensor, or any other piece of hardware, which sets both apart from the airframe makers this site covers most often. BigBear.ai's platforms, including ConductorOS, Ask Sage, TrueFace, and CargoSeer, ingest data and present it to a human operator or analyst. ConductorOS specifically lets a single operator manage a multi-vendor drone fleet from one console, rather than one aircraft type at a time. Palantir's Maven Smart System does the equivalent job at a larger scale. It fuses feeds from drones, satellites, and other sensors so military analysts can build a targeting or situational-awareness picture faster than manual analysis allows.

That distinction matters for a reader used to this site's usual drone and unmanned-systems coverage. A dollar of BigBear.ai or Palantir revenue does not track drone unit sales the way an airframe maker's revenue does. Both companies' government revenue moves with software contract awards, renewals, and how fast an agency expands a pilot program into wider deployment. That is a different growth mechanism from the hardware production ramps that drive companies like AeroVironment or Anduril.

Palantir's Government Revenue Alone Exceeds BigBear.ai's Entire Business

Palantir's U.S. government revenue was $809 million in the second quarter of 2026 alone, more than 22 times BigBear.ai's entire quarterly revenue of $36.7 million. That $809 million represented about 42% of Palantir's $1.935 billion total revenue for the quarter. U.S. commercial revenue, at $764 million and up 149% year over year, is now large enough to sit almost even with the government side. BigBear.ai does not break out a precise government-versus-commercial split in its press releases. Its own reporting describes the business as still heavily weighted toward U.S. government, defense, and intelligence-community customers, with Ask Sage's newly launched commercial tier as the company's clearest step toward diversification.

Palantir's commercial growth is now a bigger swing factor for its stock than any single government contract. BigBear.ai, by contrast, remains close to a pure government-and-defense revenue story. A reader who wants concentrated exposure to federal AI spending, with the volatility that comes from depending on a small number of agency budgets, gets a purer version of that from BigBear.ai. A reader who wants government exposure plus a large and separately growing commercial software business gets that combination only from Palantir.

Named Contracts Show Two Different Tiers of the Same Market

BigBear.ai and Palantir have each disclosed federal contract wins that illustrate the scale gap directly rather than through a revenue table alone.

• BigBear.ai: a five-year, $165.15 million sole-source Army production contract for Global Force Information Management (GFIM-OE). A 3.5-year, $13.2 million DoD Joint Staff contract runs the ORION Decision Support Platform. The company also holds a prime IDIQ position on the Navy's SeaPort Next Generation vehicle, plus a five-year single-award National Security Agency contract through its PCI subsidiary.
• Palantir: a U.S. Army enterprise agreement, signed in 2025, consolidates roughly 75 prior contract vehicles into one deal with a ceiling of up to $10 billion over a decade. In March 2026, the Department of Defense designated Maven Smart System an official program of record across all five military branches, effective by September 2026. That status typically brings a steadier, multi-year budget line than a task order renewed year to year.

Reading these lists side by side shows a pattern this comparison keeps returning to. BigBear.ai's wins are real, disclosed, and material to a company its size. Palantir's wins operate at a scale where a single enterprise agreement can be worth more than 30 times BigBear.ai's full annual revenue guidance. Neither fact makes BigBear.ai's contracts unimportant. It makes them the wrong yardstick for measuring Palantir, and vice versa.

Palantir Trades at About 5.5 Times BigBear.ai's Sales Multiple

Dividing each company's Aug 31, 2026 market cap by the midpoint of its own full-year 2026 revenue guidance gives a forward price-to-sales figure that a reader can recompute at any time. Palantir's $447.88 billion market cap against an $8.154 billion guidance midpoint works out to about 54.9 times forward sales. BigBear.ai's $1.50 billion market cap against a $150 million guidance midpoint works out to about 10.0 times forward sales, meaning Palantir currently trades at roughly 5.5 times BigBear.ai's multiple.

A higher multiple is not automatically a worse deal, since it reflects a faster growth rate, higher margins, and a business the market has more confidence will keep compounding. Palantir posted an adjusted operating income of $1.194 billion and adjusted free cash flow of $1.220 billion in the same quarter that produced its $1.935 billion revenue figure. That is evidence of a profitable business funding its own growth. BigBear.ai's 32.8% gross margin, up 781 basis points year over year, points toward improving unit economics. The company has not yet posted the sustained operating profitability that would justify a Palantir-sized multiple. Sell-side consensus estimates for BigBear.ai still model a per-share loss for 2026, though that loss estimate has narrowed in recent months. Consensus figures like that one shift after every earnings call. They can also lag a company's own updated guidance for weeks, a reason to treat any single snapshot as temporary rather than fixed.

13% Growth and 82% Growth Come From Very Different Bases

BigBear.ai's own guidance of $135 million to $165 million for full-year 2026 implies growth of roughly 5% to 29% over 2025's $128 million in actual revenue. The midpoint of that range points to growth near 17%. Palantir's guidance of $8.150 billion to $8.158 billion for the same year represents 82% growth over 2025, by the company's own stated figure. Comparing those two growth rates directly is the most common mistake a reader can make with this pair of stocks. Palantir is compounding a much larger base at a much faster rate, a rarer combination than either fact alone.

The failure mode runs the other way too. A reader might assume BigBear.ai's smaller size gives it more room to grow percentage-wise, the usual small-cap argument. That assumption has to reconcile with a fact: Palantir grew faster in the most recent quarter despite already being roughly 218 times BigBear.ai's revenue size, based on the two companies' Q2 2026 totals of $1.935 billion versus $36.7 million. Size alone does not predict growth rate for either company. This pair is a clean example of why that shortcut fails.

Who This Comparison Is Not Useful For

This comparison is not useful for a reader looking for a single "buy this one" answer without first deciding what the money is for. A reader who only wants the more established, already-profitable, more liquid name should skip the comparison. Read Palantir's own 10-K and quarterly filings directly on SEC EDGAR instead.

It is also not useful for a reader trying to build a pure-play drone or unmanned-aircraft thesis. Neither company manufactures aircraft, and treating either one as a drone stock, rather than a defense-adjacent software company, misreads what actually drives its revenue. A reader with that goal should start from the largest drone companies research page instead.

What Would Change This Comparison

A few concrete developments would move this comparison. Suppose BigBear.ai's Ask Sage commercial tier scales into a meaningful share of total revenue. The company's growth profile and risk concentration would then begin to resemble a smaller version of Palantir's government-plus-commercial mix, rather than a near-pure government story. Palantir's U.S. commercial growth rate was 149% year over year in Q2 2026. If that rate slows sharply as the AI-adoption cycle among large enterprises matures, the valuation gap in the table above would compress even without any change at BigBear.ai.

A lost re-compete or program cancellation would hit each company differently given the size gap. BigBear.ai's smaller, more concentrated contract base means a single lost award, such as the GFIM-OE production contract, would show up immediately and visibly in its results. Palantir's Maven Smart System is on track to reach full program-of-record status by September 2026, per the Department of Defense's own designation, which makes an equivalent disruption to its largest program less likely in the near term. Its Army enterprise agreement's ceiling value is not the same thing as revenue the company has already recognized, though. That gap should be checked in Palantir's own quarterly SEC filings before assuming the full $10 billion is committed spending.

BigBear.ai and Palantir Answer Different Research Questions

Palantir fits a research question about scale, diversification, and an already-profitable government-and-commercial software franchise. BigBear.ai fits a different question: smaller, more concentrated exposure to U.S. government AI spending, at roughly one-fifth of Palantir's forward sales multiple, with the added risk of a company that has not yet reached sustained profitability. Neither verdict is a recommendation to buy either stock. It is a statement of which question each company actually answers.

Both companies report quarterly, and a number current on August 31, 2026 will be stale within weeks. Pull the most recent 10-Q from each company on SEC EDGAR before acting on any figure in this comparison.

How to Use This Comparison

Treat the market-cap and valuation gap in the table above as the starting fact for any BigBear.ai-versus-Palantir research. A 299-times size difference and a 5.5-times valuation-multiple difference mean the two stocks answer different questions even when a headline groups them under the same "defense AI" label. Decide first whether the research question is about scale and diversification or about smaller, more concentrated federal exposure, then read the relevant company's own filings rather than a blended ranking of both.

For the drone-specific angle either company touches only indirectly, cross-check the largest drone companies page to see which businesses actually build the hardware BigBear.ai's ConductorOS and Palantir's Maven Smart System process data from. For the broader question of where software fits inside the defense-tech value chain relative to hardware, the guide to investing in defense tech covers the dual-use software layer both companies occupy. Neither company currently pays a dividend, so a reader building income-focused defense exposure should check the defense dividend stocks page next.