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Which US defense companies spent the most on lobbying in 2024?

Checked on November 9, 2025
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Executive Summary

The available analyses disagree on specifics but converge on one point: OpenSecrets reports the defense industry spent roughly $149 million lobbying in the 2024 cycle, while individual‑company rank‑ordering for 2024 is not provided in those OpenSecrets pages and remains unresolved in the supplied materials. The secondary analyses assert that leading contractors — Lockheed Martin, Boeing, Northrop Grumman, Raytheon/RTX and General Dynamics — are typically the largest spenders, but the sources offered either cite earlier years (2023 and prior) or make broader claims without 2024 itemized filings to substantiate a definitive top‑five list [1] [2] [3] [4].

1. Why the official tally stops at industry totals, and what OpenSecrets actually reports

OpenSecrets’ defense lobbying overview for the 2024 cycle gives a clear industry aggregate: about $149.24 million, broken into sub‑categories such as Misc Defense, Defense Aerospace and Defense Electronics, but the page cited in the available analyses does not publish a company‑by‑company leaderboard for 2024 within the extracted text. The supplied assessments emphasize that OpenSecrets’ publicly accessible cycle summary is comprehensive at the sector level but omits a simple “top companies in 2024” table in the provided excerpts, leaving a gap between industry totals and firm‑level attribution [1] [5]. That gap explains why the question “Which companies spent the most in 2024?” cannot be answered solely from the OpenSecrets snippets supplied.

2. Secondary claims of top spenders: repeated names but inconsistent years

Multiple analyses supplied independently name the familiar top defense contractors — Lockheed Martin, Boeing, Northrop Grumman, Raytheon/RTX, and General Dynamics — as heavy lobbying spenders, reflecting a pattern visible in past filing years. However, these statements either reference 2023 numbers or do not attach firm‑level 2024 filing citations. One assessment reports large cumulative spending and involvement in personnel exchanges with the Pentagon, framing an argument about institutional influence rather than providing a 2024 ranked list [6] [2] [3]. The pattern that emerges across sources is consistent: the same major primes dominate lobbying spend historically, but the provided materials do not include validated 2024 per‑firm totals needed to declare a definitive ranking.

3. Conflicting data points and temporal mismatches that matter

Some supplied snippets give per‑company dollar figures, but those figures are dated to 2023 or prior reporting windows, and one analysis explicitly flags that the 2024 breakdown is missing from its source material. The contrast between OpenSecrets’ 2024 industry sum and other pieces quoting 2023 or multi‑year totals creates a risk of conflating historical dominance with 2024‑specific spending, which would misstate the record if smaller shifts occurred in the latest filings [7] [2] [4]. The practical consequence is that readers asking “who spent the most in 2024” receive plausible but unverified lists unless firm‑by‑firm 2024 lobbying reports are produced and cross‑checked against the OpenSecrets database.

4. What each source emphasizes beyond raw dollars: influence and revolving doors

Beyond raw lobbying totals, the analyses attach broader narratives: influence through proximity to defense policy and revolving‑door hiring, shareholder pressure on climate and procurement priorities, and multi‑year lobbying trends returning large contract returns. These complementary angles explain why commentators repeatedly single out the big primes — their lobbying is embedded in personnel flows and contract lobbying, not just line‑item expenditures — but these qualitative claims do not substitute for firm‑level 2024 numeric verification [6] [8] [4]. Readers should thus separate the robust claim about systemic influence from the weaker claim that any particular company definitively topped 2024 spending absent explicit 2024 filings.

5. Bottom line and what is needed to close the remaining gap

The materials provided establish that the defense sector spent roughly $149 million in the 2024 lobbying cycle and that the historic top spenders are consistently the large primes, but they do not contain validated, itemized 2024 company rankings. To close the gap and answer the original question authoritatively requires consulting the firm‑by‑firm 2024 lobbying filings or OpenSecrets’ company pages for the 2024 cycle to extract each contractor’s declared 2024 totals and compare them directly. Until those specific 2024 per‑company records are presented, stating a ranked list for 2024 would rely on extrapolation from 2023 and multi‑year patterns rather than the distinct 2024 filings [1] [2] [9].

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