49 U.S. AI startups raised $100M+ in 2024 — full list and funding context

TL;DR

• 49 U.S.–based AI startups raised at least $100 million in 2024, per TechCrunch’s curated list.
• AI funding dominated venture rounds in Q3 2024, with $19 billion raised and about 28% of total venture funding, according to Crunchbase data cited by TechCrunch.
• The year featured megafund rounds, including OpenAI’s $6.6 billion round and Elon Musk’s xAI with a $6 billion round in November.
• There were seven AI funding rounds over $1 billion in 2024, underscoring sustained investor enthusiasm.
• The article has been updated multiple times (July 2024 original; updates in September, October, November, and December 2024) to include more deals and to correct valuation data for Glean.

Context and background

The 2024 venture landscape for artificial intelligence remained unusually active, with funding rounds of all sizes continuing to proliferate across U.S. AI startups. TechCrunch notes that 2024 featured a wave of substantial rounds that pushed the sector to the forefront of venture activity. A mid-year snapshot indicated that AI deals in Q3 alone reached $19 billion, representing roughly 28% of all venture funding for that quarter, according to Crunchbase data cited in the article. This level of concentration and capital inflow helped sustain a robust pipeline of late-stage rounds and encouraged later-stage investors to pursue platform-scale AI initiatives. The piece in question is a curated catalog of the U.S.-based AI companies that raised $100 million or more during 2024. It was originally published on July 13, 2024, and subsequently updated on September 9, 2024; October 11, 2024; November 15, 2024; and December 20, 2024. The updates reflect ongoing deal activity and adjustments to company valuations as new rounds closed or terms became public. As part of the update process, TechCrunch notes a correction to Glean’s current valuation, emphasizing the dynamic nature of private-market data.

What’s new

Two of the year’s largest announced rounds illustrate the scale of capital chasing AI platforms in 2024. OpenAI disclosed a round of about $6.6 billion, while Elon Musk’s xAI raised approximately $6 billion in November. These rounds were described as among seven AI funding rounds exceeding $1 billion in 2024. The December update confirms that this year’s activity continues to broaden the roster of U.S. AI startups receiving significant equity capital, beyond the two headline megafunds. The list TechCrunch compiles highlights 49 U.S.-based startups that crossed the $100 million threshold in 2024, underscoring that a broad cohort—beyond the most widely covered names—reached substantial scale. While the article does not enumerate every deal in the body of this summary, it emphasizes the breadth of investor interest across verticals such as software-as-a-service AI tooling, enterprise AI platforms, data infrastructure, and specialized ML solutions. To provide a sense of scale, the year featured multiple mega-rounds and a continued trend toward larger, faster equity raises that signal a maturation of AI-focused companies and the ecosystems around them. The December update reiterates that this list is a living artifact of 2024 deal flow and reinforces the point that the AI funding cycle remained unusually active through Q4.

Why it matters (impact for developers/enterprises)

For developers and enterprises, the 2024 funding environment signals several implications. First, large rounds give AI platforms and infrastructure providers greater capital to accelerate research, model training, data tooling, and developer ecosystems. This can translate into broader access to advanced capabilities, more robust SDKs and APIs, and expanded enterprise-grade features. Second, the concentration of capital around AI may intensify the pace at which new tools and services come to market, potentially raising both opportunities and competitive pressure for builders and integrators. Finally, the sustained investor interest in AI rounds—categorically demonstrated by multiple rounds above $1 billion—suggests a continuing appetite for platform-scale AI solutions and complementary technologies across industries. From a practical standpoint, enterprises evaluating AI procurement and deployment can expect a more diverse and capital-backed array of options, including enhanced tooling, data-related services, and deployment capabilities on par with large-scale consumer and enterprise AI programs. As the sector matures, developers may also see more standardized patterns for integrations, governance, and security to address enterprise needs at scale. All of these implications align with the broader narrative TechCrunch highlights: 2024 saw persistent, multi-billion-dollar support for U.S. AI startups, which in turn tends to elevate the capabilities available to developers and organizations pursuing AI-driven transformation.

Technical details or Implementation

The article serves as a curated catalog rooted in the criterion that a startup must be U.S.-based and have raised at least $100 million in 2024 to be included. It is explicitly described as an evolving piece, with updates published throughout the year (including in September, October, November, and December 2024) to reflect newly disclosed rounds and revised valuations. In framing the funding environment, the piece cites quarterly venture-funding data, noting that Q3 2024 AI rounds totaled about $19 billion and accounted for roughly 28% of all venture funding, drawing on Crunchbase data as the basis for that calculation. The December update also notes a valuation correction for a specific company (Glean), illustrating the challenges of private-market valuation reporting and the need for ongoing revision when new information becomes available. While the article highlights OpenAI and xAI as prominent megaround examples, it emphasizes that the scale of activity extends beyond those two entities to a broader set of 49 startups crossing the $100 million threshold in 2024.

Key takeaways

• 2024 saw sustained, high-volume funding activity for U.S. AI startups, with at least 49 companies raising $100M+.
• Major megaround milestones included OpenAI’s $6.6B round and xAI’s $6B round, among seven rounds exceeding $1B in 2024.
• Q3 funding in AI reached $19B and represented about 28% of total venture funding, underscoring AI’s outsized share of investor interest.
• The list and related figures have been updated multiple times throughout 2024 to incorporate new deals and valuation adjustments.
• The underlying takeaway is that AI funding remained robust through 2024, supporting a broad ecosystem of developers and enterprise users.

References

• https://techcrunch.com/2024/12/20/heres-the-full-list-of-49-us-ai-startups-that-have-raised-100m-or-more-in-2024/ [TechCrunch]