# Which AI tools do Professional Services companies use for AI search & research? Listen: 5 companies (0 Confirmed, 0 Declared, 5 Observed, 0 Job-post signal). No published reason in the sources selected. · Perplexity: 3 companies (3 Confirmed, 0 Declared, 0 Observed, 0 Job-post signal). Original source text: “When preparing for briefings or analysis on topics such as the German electricity distribution market, or another specialized industry, the team uses Perplexity to gather foundational information and establish credibility quickly.” — Latham & Watkins LLP ([Read the source]()). · Tavily: 3 companies (1 Confirmed, 0 Declared, 2 Observed, 0 Job-post signal). Original source text: “Inside monday Agents, web search is now a capability agents can call when a workflow requires external signals in addition to internal data.” — monday.com ([Read the source]()). View the cited answer: https://www.usedby.ai/companies/industry/professional-services/ai-search-research # AI search & research tools used by Professional Services companies usedby lists 16 Professional Services companies using 7 AI search & research tools. The most used is Listen: 5 of the 16 Professional Services companies on usedby, every proof level counted. These are counts of the companies usedby tracks, not a market share. Data as of 2026-11-15. ## Largest and best-proven users Two labelled views of the same companies. Neither is a score. ### Largest companies By employee range. Size known for 15 of 16. | Company | Proof | Employees | Tools | Last check | |---|---|---|---|---| | [BDO](https://www.usedby.ai/companies/bdo.md) | Observed | 10,001+ | AlphaSense | 2026-11-10 | | [Bain & Company](https://www.usedby.ai/companies/bain-company.md) | Observed | 10,001+ | Listen | 2026-11-09 | | [EY](https://www.usedby.ai/companies/ey.md) | Observed | 10,001+ | Arist | 2026-11-08 | ### Strongest proof Confirmed or declared: 5 of 16. This view filters what you read, never what is counted. | Company | Proof | Employees | Tools | Last check | |---|---|---|---|---| | [AlixPartners](https://www.usedby.ai/companies/alixpartners.md) | Confirmed | 1,001–5,000 | Perplexity | 2026-11-15 | | [Gunderson Dettmer](https://www.usedby.ai/companies/gunderson-dettmer.md) | Confirmed | 201–1,000 | Perplexity | 2026-11-15 | | [Latham & Watkins LLP](https://www.usedby.ai/companies/latham-watkins-llp.md) | Confirmed | 1,001–5,000 | Perplexity | 2026-11-15 | ## Ranking Tools ranked by the companies of the 16 Professional Services companies on usedby that use them. Each company counts once per tool, at its strongest proof. Ties go to more confirmed, then declared, then observed companies. | # | Tool | Companies | Confirmed | Declared | Observed | Job posts only | Last check | |---|---|---|---|---|---|---|---| | 1 | [Listen](https://www.usedby.ai/tools/listen.md) | 5 | 0 | 0 | 5 | 0 | 2026-11-15 | | 2 | [Perplexity](https://www.usedby.ai/tools/perplexity.md) | 3 | 3 | 0 | 0 | 0 | 2026-11-15 | | 3 | [Tavily](https://www.usedby.ai/tools/tavily.md) | 3 | 1 | 0 | 2 | 0 | 2026-11-12 | | 4 | [AlphaSense](https://www.usedby.ai/tools/alphasense.md) | 2 | 1 | 0 | 1 | 0 | 2026-11-10 | | 5 | [Exa](https://www.usedby.ai/tools/exa.md) | 2 | 1 | 0 | 1 | 0 | 2026-11-12 | | 6 | [Arist](https://www.usedby.ai/tools/arist.md) | 1 | 0 | 0 | 1 | 0 | 2026-11-08 | | 7 | [You.com](https://www.usedby.ai/tools/you-com.md) | 1 | 0 | 0 | 1 | 0 | 2026-11-10 | ## Customers per tool Every line is a customer, at one of three proof levels: confirmed (a case study, a named quote, a press release, or the company's own public account of using the tool (its own site, or a post by one of its executives, VP or above)), observed (the vendor shows the company on its own pages) or signal (a job post shows the company's employees use the tool, the weakest proof). A line the company declared to usedby itself, or that it lists as a sub-processor on its own legal page, is marked declared. A signal is never a case study or a vendor listing. Strongest proof first. "Last check" is the later of the line's re-verification and its latest capture. | Tool | Company | Proof | Source | Last check | |---|---|---|---|---| | Listen | [Bain & Company](https://www.usedby.ai/companies/bain-company.md) | Observed | [listenlabs.ai](https://listenlabs.ai/case-studies), captured 2026-11-09 | 2026-11-09 | | Listen | [Calendly](https://www.usedby.ai/companies/calendly.md) | Observed | [listenlabs.ai](https://listenlabs.ai/case-studies), captured 2026-11-15 | 2026-11-15 | | Listen | [Docusign](https://www.usedby.ai/companies/docusign.md) | Observed | [listenlabs.ai](https://listenlabs.ai/case-studies), captured 2026-11-15 | 2026-11-15 | | Listen | [Morse](https://www.usedby.ai/companies/morse.md) | Observed | [listenlabs.ai](https://listenlabs.ai/), captured 2026-11-15 | 2026-11-15 | | Listen | [ZipRecruiter](https://www.usedby.ai/companies/ziprecruiter.md) | Observed | [listenlabs.ai](https://listenlabs.ai/case-studies), captured 2026-11-15 | 2026-11-15 | | Perplexity | [Latham & Watkins LLP](https://www.usedby.ai/companies/latham-watkins-llp.md) | Confirmed | [perplexity.ai](https://www.perplexity.ai/hub/customers/latham-watkins), captured 2026-11-11 | 2026-11-15 | | Perplexity | [AlixPartners](https://www.usedby.ai/companies/alixpartners.md) | Confirmed | [perplexity.ai](https://www.perplexity.ai/hub/customers/alix-partners), captured 2026-11-11 | 2026-11-15 | | Perplexity | [Gunderson Dettmer](https://www.usedby.ai/companies/gunderson-dettmer.md) | Confirmed | [perplexity.ai](https://www.perplexity.ai/hub/customers/gunderson), captured 2026-11-11 | 2026-11-15 | | Tavily | [monday.com](https://www.usedby.ai/companies/monday-com.md) | Confirmed | [tavily.com](https://www.tavily.com/customer-stories/monday.com), captured 2026-11-12 | 2026-11-12 | | Tavily | [Ironclad](https://www.usedby.ai/companies/ironclad.md) | Observed | [tavily.com](https://www.tavily.com/), captured 2026-11-12 | 2026-11-12 | | Tavily | [Troutman Pepper Locke](https://www.usedby.ai/companies/troutman-pepper-locke.md) | Observed | [tavily.com](https://www.tavily.com/), captured 2026-11-12 | 2026-11-12 | | AlphaSense | [Solici](https://www.usedby.ai/companies/solici.md) | Confirmed | [alpha-sense.com](https://www.alpha-sense.com/resources/case-studies/solici-eliminates-research-bottlenecks-with-alphasense/), captured 2026-11-10 | 2026-11-10 | | AlphaSense | [BDO](https://www.usedby.ai/companies/bdo.md) | Observed | [alpha-sense.com](https://www.alpha-sense.com/customer-story-hub/), captured 2026-11-10 | 2026-11-10 | | Exa | [monday.com](https://www.usedby.ai/companies/monday-com.md) | Confirmed | [exa.ai](https://exa.ai/customers/monday), captured 2026-11-12 | 2026-11-12 | | Exa | [Legora](https://www.usedby.ai/companies/legora.md) | Observed | [exa.ai](https://exa.ai/), captured 2026-11-12 | 2026-11-12 | | Arist | [EY](https://www.usedby.ai/companies/ey.md) | Observed | [arist.com](https://arist.com/), captured 2026-11-08 | 2026-11-08 | | You.com | [Harvey](https://www.usedby.ai/companies/harvey.md) | Observed | [you.com](https://you.com/pricing), captured 2026-11-10 | 2026-11-10 | ## Method Public customer lines of active AI search & research tools at companies classified in Professional Services. No software vendor had to be left out. Company mix by strongest proof: 5 confirmed, 0 declared, 11 observed and 0 signals. ## Questions ### Which AI search & research tools do Professional Services companies use most? Listen leads: 5 of the 16 Professional Services companies on usedby that use AI search & research tools use it. Next: Perplexity (3), Tavily (3), AlphaSense (2), and Exa (2). ### How many Professional Services companies use AI search & research tools? 16 Professional Services companies on usedby use at least one of 7 AI search & research tools. It counts the companies usedby tracks. ### What proof backs these lines? Of the 16 companies, each counted at its strongest proof: 5 confirmed, 0 declared, 11 observed and 0 known from a job post. ### How does usedby build this ranking? usedby counts each Professional Services company once per tool, from public proof: case studies, press releases, the company's own site or its declaration to usedby, vendor customer pages and job posts. Every line shows its proof and the date usedby last checked it. Industry page: https://www.usedby.ai/companies/industry/professional-services.md · Category page: https://www.usedby.ai/tools/category/ai-search-research.md --- Source: https://www.usedby.ai/companies/industry/professional-services/ai-search-research · How we check: https://www.usedby.ai/methodology