# What does OSS Ventures use? OSS Ventures (oss.ventures) shows public evidence of 20 tools, according to runsonwhat (last checked 2026-11-10). - Industry: Venture Capital & Private Equity - Size: 11–50 employees - Based in: Paris, France - Founded: 2018 - LinkedIn: https://www.linkedin.com/company/oss-ventures ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | DNS records, Email records, Website code | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [jQuery](https://www.runsonwhat.com/reverse/jquery) | Frontend | Website code | | | [Google Fonts](https://www.runsonwhat.com/reverse/google-fonts) | Media & UI | Website code | | | [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records | | ## Data & Observability | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Analytics](https://www.runsonwhat.com/reverse/ga) | Analytics | Website code | | | [Umami](https://www.runsonwhat.com/reverse/umami) | Analytics | Website code | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code | | | [Mailchimp](https://www.runsonwhat.com/reverse/mailchimp) | Marketing | Website code | | | [Webflow](https://www.runsonwhat.com/reverse/webflow) | Website & CMS | Custom domain, DNS verification records, Website code | | | [lemlist](https://www.runsonwhat.com/reverse/lemlist) | Sales & CRM | DNS verification records | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records | | | [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records, Website code | | | [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records | | | [Resend](https://www.runsonwhat.com/reverse/resend) | Email Delivery | Email records | | | [Cloudflare Turnstile](https://www.runsonwhat.com/reverse/turnstile) | Security & Compliance | Website code | | | [Mailjet](https://www.runsonwhat.com/reverse/mailjet) | Email Delivery | Website code | | | [1Password](https://www.runsonwhat.com/reverse/1password) | Security & Compliance | DNS verification records | | | [Uber for Business](https://www.runsonwhat.com/reverse/uber) | Finance & Legal | DNS verification records | | ## Recent changes at OSS Ventures - 2026-10-27: started using [lemlist](https://www.runsonwhat.com/reverse/lemlist) ## FAQ ### What tools does OSS Ventures use? As of November 2026, runsonwhat has found 20 tools at OSS Ventures (oss.ventures) in public records. Edge & Hosting: Cloudflare. Application: jQuery, Google Fonts and Anthropic. Data & Observability: Google Analytics and Umami. Go-to-market: Google Ads, Mailchimp and Webflow. Company Ops: Microsoft 365, Google Workspace and Apple Business. Last checked November 10, 2026. ### What sales tools does OSS Ventures use? The sales tools runsonwhat has found at OSS Ventures are lemlist (November 2026); no CRM shows up in OSS Ventures' public records. runsonwhat found lemlist through a DNS verification record for lemlist. lemlist is used by 738 companies runsonwhat tracks. ### What email provider does OSS Ventures use? OSS Ventures uses Microsoft 365 for email and office software, alongside Google Workspace and Apple Business, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 734,250 companies runsonwhat tracks. ### What analytics tools does OSS Ventures use? OSS Ventures uses Google Analytics for analytics, alongside Umami, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on oss.ventures. Google Analytics is used by 903,970 companies runsonwhat tracks. ### What is OSS Ventures's website built with? OSS Ventures uses Webflow for its website, according to runsonwhat (November 2026). runsonwhat found Webflow through a subdomain that points at Webflow and a DNS verification record. Webflow is used by 36,264 companies runsonwhat tracks. ### What marketing software does OSS Ventures use? OSS Ventures uses Mailchimp for marketing, according to runsonwhat (November 2026). runsonwhat found Mailchimp through Mailchimp code on oss.ventures. Mailchimp is used by 119,039 companies runsonwhat tracks. ### Does OSS Ventures use jQuery? Yes. runsonwhat found jQuery at OSS Ventures through jQuery code on oss.ventures. jQuery is a Frontend tool used by 927,228 companies runsonwhat tracks. ### Does OSS Ventures use AI tools? Yes. runsonwhat has found Anthropic at OSS Ventures; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so OSS Ventures may use more AI tools than these. ### Has OSS Ventures changed tools recently? Yes. On runsonwhat's rechecks, OSS Ventures started using lemlist (latest on October 27, 2026). A change counts only between two checks of oss.ventures done the same way. ### Which companies have a tech stack similar to OSS Ventures's? The companies with the stacks most like OSS Ventures' are Commercial Waterproofing Contractors in Toronto, KEENAT, Quadrant Advisory and SouthBridge Executive, according to runsonwhat (November 2026). Each shares 5 to 8 tools with OSS Ventures, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what OSS Ventures uses? runsonwhat reads public records only. Of the 20 tools at OSS Ventures, 8 were found through code on oss.ventures, 8 through DNS records, 2 through email records, 1 through website configuration files and 1 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and oss.ventures about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/oss.ventures (updated November 2026). Counts are companies with direct public evidence of the tool (DNS records, certificates, website code, a real-browser crawl, subprocessor lists), so they are lower bounds. Methodology: https://www.runsonwhat.com/methodology.