Andreessen Horowitz won AI search by publishing for a decade, and it is the only venture firm whose own website ranks among the top 10 sources AI assistants cite about venture capital. 5W's Venture Capital AI Visibility Index 2026 found a16z.com in 7.1% of retrieved responses and a16z at 21.4% Citation Share. Venture firms without a publishing record get described by other people's content.
What is the Venture Capital AI Visibility Index?
The Venture Capital AI Visibility Index 2026 is a two-wave benchmark of how ChatGPT, Claude, Gemini, Perplexity and Google AI Overviews surface, cite and recommend U.S. venture firms and named partners. 5W ran 28,400 prompts, split evenly across two waves: January 15 to February 12, 2026 and April 8 to May 6, 2026. The test covered 60 firms and 100 named partners.
Citation Share is the share of retrieved AI responses in which a firm, partner or source is named, recommended or cited as a reference. The Index weights those three signals equally. It reports only findings that held across both waves, within 1.5 percentage points on firm-level share.
Three terms matter for the rest of this post. The name a16z stands for Andreessen Horowitz, the venture firm founded by Marc Andreessen and Ben Horowitz. AUM means assets under management, the total capital a firm oversees. A retrieved response is an AI answer built from sources the assistant looked up or already holds.
How did 5W test the five AI assistants?
5W tested the five assistants with the same prompt set in both waves, so differences between waves reflect model drift and not a changed question list. The prompts imitated real research by founders, LPs (limited partners, the investors in a fund), journalists and analysts. They included branded firm queries, category queries such as "best VC firms for AI startups," comparison queries, intent queries and crisis queries.
Each prompt ran three times per engine within a wave, at varied times of day, to reduce random variation. The Index weights each engine equally, so Perplexity and Google AI Overviews, which return more citations per answer, do not dominate the totals. The Index does not separate live web retrieval from patterns learned in training, because outside observers cannot tell the two apart.
Why does a16z.com rank among the top cited venture sources?
A16z.com ranks fifth among cited sources because AI assistants treat its published content as primary source material about venture capital. The Index puts the site at 7.1% of retrieved responses, ahead of Forbes at 5.9%, PitchBook at 4.6%, Bloomberg at 3.8% and The Wall Street Journal at 3.1%. No other firm-owned editorial domain ranked in the top 25.
The four sources above a16z.com are all third-party publishers: Wikipedia, TechCrunch, Crunchbase and The Information. Together those four supply about 57% of venture citations. The table shows the top of the source ranking.
| Rank | Source | Share of citations |
|---|---|---|
| 1 | Wikipedia | 18.7% |
| 2 | TechCrunch | 16.4% |
| 3 | Crunchbase | 12.8% |
| 4 | The Information | 9.2% |
| 5 | a16z.com (only venture-owned domain in the top 10) | 7.1% |
| 6 | Forbes, including the Midas List | 5.9% |
Marc Andreessen leads named-partner share at 14.2%. The Index notes that his share appears to be reinforced by a footprint that spans a16z content, podcast appearances, op-ed bylines and an active X account. Those channels often surface in the same retrieved answer.
Ronn Torossian, who led the study as 5W's founder and chairman, summarized the pattern in one line: "Andreessen Horowitz spent a decade building a media company inside a venture firm." He argues that the rest of the industry is described by Wikipedia and TechCrunch because it never built a comparable publishing operation.
Does fund size predict a venture firm's AI visibility?
Fund size does not predict AI visibility in this dataset. Insight Partners manages roughly $80 billion and holds 1.6% Citation Share. Tiger Global manages roughly $50 billion and holds 1.3%. Bessemer, at roughly $20 billion, holds 1.1%.
| Firm | Approximate AUM | Citation Share |
|---|---|---|
| Insight Partners | $80 billion | 1.6% |
| Tiger Global | $50 billion | 1.3% |
| Bessemer | $20 billion | 1.1% |
For thirty years, venture firms assumed that raising a larger fund bought a larger public profile. The Index finds that assumption does not carry into AI answers. In its data, sustained earned media and a regular owned-content cadence correlated more strongly with retrieval frequency than AUM did.
Why it works: AI assistants assemble answers from documents they can find, read and attribute to a named entity. A firm with a large archive of indexed pages, transcripts and articles gives an assistant many passages to quote. A firm with a small web footprint gives it a few. The 5W Index of May 2026 measured the result: three firms, a16z, Sequoia Capital and Y Combinator, took 55.1% of all venture citations.
Who beats the venture firms on startup-funding questions?
Y Combinator beats every traditional venture firm on broad startup-funding questions. For prompts such as "where to raise money" and "how do I get funded," Y Combinator surfaced more often than any venture firm in the dataset, at 15.9% Citation Share. YC is an accelerator, not a traditional fund, and the Index credits two decades of structured founder content, essays and Hacker News authority.
The a16z lead widens on narrower topics. Within prompts about AI startups, AI investors and AI deal activity, a16z rose to 37.1% share. Sequoia followed at 18.4%, then Khosla Ventures at 9.6%, Founders Fund at 7.2% and Greylock at 4.8%. The Index suggests that firms which published heavily on AI theses in 2022 and 2023 appear more often in AI-specific answers today.
The engines disagree with each other. ChatGPT favored Sequoia, consistent with heavy Wikipedia weighting. Gemini and Perplexity favored a16z. Claude produced the most balanced distribution. A firm that checks only one assistant sees one version of its standing, so test all five.
Do bad headlines fade from AI answers?
Bad headlines do not fade from AI answers on a communications team's schedule. The Index found FTX still surfacing in 23% of crypto-focused venture responses, and the WeWork episode appearing in 14% of SoftBank-related responses more than five years after the unwinding. Both patterns held across both waves.
The Index reads those results as evidence that once a reference sits in retrieval and training data, it stays put across model updates. Torossian's conclusion is operational: a firm cannot repair its AI presence in the quarter before a raise. The work belongs in the 12 to 18 months between vintages, when pressure is low and the effort compounds.
That timing advice ties to the reputation management pillar, which covers how a negative story spreads and how long it lasts. It also ties to the post on how AI engines decide what to cite, which explains the selection mechanics in plain terms.
What happens when a founder asks an AI about venture firms?
A founder who asks an AI assistant about venture firms receives an answer built mostly from third-party sources, and a16z is the one firm whose own pages join them. Illustrative scenario: a founder types "best seed investors for a logistics startup" into ChatGPT. The answer leans on Wikipedia pages, TechCrunch coverage and Crunchbase profiles. A firm with no recent coverage and a thin Wikipedia entry never enters the shortlist, regardless of its returns.
The Index measured a version of this problem. Solo capitalists, emerging managers and funds under $500 million, including several recent top performers, registered under 1.2% combined Citation Share. Fund performance did not appear to drive retrieval. Established entities did.
Partner names create a second problem. In 43% of branded firm prompts, the AI surfaced a named partner, and "Andreessen" and "a16z" appeared interchangeably in every engine. Some of those partners had left the firm. A firm needs its brand and its partners' bios to agree across sources, or an assistant may credit the wrong person.
What should a venture firm do before its next raise?
A venture firm should start with a baseline measurement, then fix its entity records and build earned coverage in the sources that supply most citations. The Index lists five moves. Each move below carries the mechanism behind it.
| Move | Action | Reason from the Index |
|---|---|---|
| Baseline | Run 25 prompts across all five assistants twice in 30 days | Without a baseline, no claim of movement is meaningful |
| Wikipedia audit | Review the firm entry and the entries for its top three general partners | Wikipedia appeared in 16.4% to 22.1% of responses across all five assistants |
| Earned coverage | Pursue TechCrunch, The Information, Crunchbase and Forbes | Those four supplied 44.3% of cited responses |
| Partner authority | Build partner profiles and firm profiles at the same time | 43% of branded prompts surfaced a named partner |
| Early start | Begin 12 to 18 months before the next fundraise | FTX and WeWork references persisted for years |
Why it works: an assistant answering a venture question looks for the entities and passages it can match to the query. A correct Wikipedia entry gives it a clean definition of the firm. Coverage in a handful of heavily cited publishers gives it independent mentions. Matching partner records stop it from crediting the wrong person. The Index, published May 13, 2026, reports that earned media volume and owned-content cadence correlated most strongly with retrieval frequency, and that Wikipedia appeared in the answers of all five assistants.
A firm that wants outside help with the earned-coverage piece can see how 5WPR handles it on the investment PR and communications practice page. The 4,500 AI audits post and the explainer on citation share as a metric cover the measurement side for any industry.
Is AI visibility just marketing for a relationships business?
AI visibility is not a substitute for relationships, but it now sits at the start of them. Venture partners often answer that venture is a relationships business, and that is correct. The Index argues that the relationship now begins with a question typed into an AI assistant by a founder choosing whom to pitch, an LP choosing whom to back, or a reporter choosing how to frame a deal.
The answer that assistant returns reflects who built the citation record first. For a firm outside the top ten, the lesson is limited but concrete. Citation Share is a directional measure of relative visibility from sampled outputs during a defined window. The Index states that models, retrieval indexes and ranking systems change, and results may shift after the test period. Treat the numbers as a snapshot and re-measure.
Conclusion: Build the publishing record before the next vintage
A16z built its record over a decade, and the Index shows what that record is worth in 2026. Run the 25-prompt baseline this month, correct your Wikipedia entries, and book earned coverage in the four publishers that supply most citations. Then publish your own research and partner commentary on a schedule, so an AI assistant has something of yours to quote when a founder asks about your category.
Last updated: October 2026. The full dataset and methodology are in the Venture Capital AI Visibility Index 2026.