# What does Firefly Systems Inc. use? Firefly Systems Inc. (fireflyon.com) shows public evidence of 27 tools, according to runsonwhat (last checked 2026-10-19). - Industry: Marketing and Advertising - Size: 51–200 employees - Based in: Manhattan, United States - Founded: 2017 - LinkedIn: https://www.linkedin.com/company/fireflyon ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Cloud](https://www.runsonwhat.com/reverse/gcp) | Hosting & Cloud | DNS records | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Fonts](https://www.runsonwhat.com/reverse/google-fonts) | Media & UI | Website code | | | [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records | | | [Firebase](https://www.runsonwhat.com/reverse/firebase) | Backend & Database | DNS verification records, Email records | | | [Auth0](https://www.runsonwhat.com/reverse/auth0) | Auth & Identity | Custom domain, Website config | | ## Data & Observability | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Analytics](https://www.runsonwhat.com/reverse/ga) | Analytics | Website code | | | [Sentry](https://www.runsonwhat.com/reverse/sentry) | Monitoring | 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 | Email records | | | [Brevo](https://www.runsonwhat.com/reverse/brevo) | Marketing | DNS verification records | | | [Zoho](https://www.runsonwhat.com/reverse/zoho) | Sales & CRM | Email records | | | [Zendesk](https://www.runsonwhat.com/reverse/zendesk) | Support & Docs | Custom domain, Email records, Website code | | | [Squarespace](https://www.runsonwhat.com/reverse/squarespace) | Website & CMS | Custom domain, DNS records, Website code | | | [Yandex Webmaster](https://www.runsonwhat.com/reverse/yandex) | Marketing | Website code | | | [Apollo.io](https://www.runsonwhat.com/reverse/apollo) | Sales & CRM | Custom domain | | | [Marketo](https://www.runsonwhat.com/reverse/marketo) | Marketing | Custom domain, Email records | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records, Website code | | | [reCAPTCHA](https://www.runsonwhat.com/reverse/recaptcha) | Security & Compliance | Website code | | | [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records | | | [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records | | | [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | DNS verification records | | | [Mailchimp Transactional](https://www.runsonwhat.com/reverse/mandrill) | Email Delivery | Email records | | | [Sage Intacct](https://www.runsonwhat.com/reverse/sage-intacct) | Finance & Legal | DNS verification records, Email records | | | [Postman](https://www.runsonwhat.com/reverse/postman) | Dev Tools | DNS verification records | | | [Lever](https://www.runsonwhat.com/reverse/lever) | People & HR | Website code | | ## Hiring at Firefly Systems Inc. 2 open roles on its public job board: Operations 1, Sales 1. ## FAQ ### What tools does Firefly Systems use? As of October 2026, runsonwhat has found 27 tools at Firefly Systems (fireflyon.com) in public records. Edge & Hosting: Google Cloud. Application: Google Fonts, Anthropic and Firebase. Data & Observability: Google Analytics and Sentry. Go-to-market: Google Ads, Mailchimp and Brevo. Company Ops: Google Workspace, reCAPTCHA and SendGrid. Last checked October 19, 2026. ### What cloud does Firefly Systems run on? Firefly Systems uses Google Cloud for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Google Cloud through DNS records that point at Google Cloud. Google Cloud is used by 75,253 companies runsonwhat tracks. ### What CRM does Firefly Systems use? Firefly Systems uses Zoho for its CRM, alongside Apollo.io, according to runsonwhat (October 2026). runsonwhat found Zoho through email records that authorize Zoho. Zoho is used by 61,776 companies runsonwhat tracks. ### What email provider does Firefly Systems use? Firefly Systems uses Google Workspace for email and office software, alongside Apple Business, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace and code on fireflyon.com. Google Workspace is used by 398,984 companies runsonwhat tracks. ### What does Firefly Systems use for customer support? Firefly Systems uses Zendesk for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Zendesk through a subdomain that points at Zendesk and email records. Zendesk is used by 41,079 companies runsonwhat tracks. ### What analytics tools does Firefly Systems use? Firefly Systems uses Google Analytics for analytics, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on fireflyon.com. Google Analytics is used by 856,271 companies runsonwhat tracks. ### Does Firefly Systems use Google Fonts? Yes. runsonwhat found Google Fonts at Firefly Systems through Google Fonts code on fireflyon.com. Google Fonts is a Media & UI tool used by 793,407 companies runsonwhat tracks. ### Does Firefly Systems use AI tools? Yes. runsonwhat has found Anthropic at Firefly Systems; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Firefly Systems may use more AI tools than these. ### Is Firefly Systems hiring? Yes. As of October 2026, Firefly Systems has 2 open roles on its public Lever job board, most in operations (1) and sales (1). 1 were posted in the last 30 days. ### Which companies have a tech stack similar to Firefly Systems's? The companies with the stacks most like Firefly Systems' are Giant Spoon, Axis Corporate, Part Of Accenture, Reinvented with Accenture and RAD Security, according to runsonwhat (October 2026). Each shares 3 to 9 tools with Firefly Systems, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Firefly Systems uses? runsonwhat reads public records only. Of the 27 tools at Firefly Systems, 9 were found through DNS records, 7 through code on fireflyon.com, 5 through email records, 5 through subdomains that point at the vendor and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and fireflyon.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/fireflyon.com (updated October 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.