About Five9
unified cloud platform, contact center solutions, call center software, customer experience, customer service, sales & support, prebuilt crm integrations, workforce management, quality management, internet of things, business intelligence, call center automation, analytics, information technology, edp services, technology, software development, information technology & services
Five9's Tech Stack
Performance
Other
Cloud
CMS
Design
Backend
Analytics
Payment
Frontend
Sales Outreach Angle
CRMs like Salesforce signal an active sales operation. Companies using Salesforce are strong targets for sales training, RevOps tools, data enrichment, and Salesforce integrations.
Five9's Position in the StackWho Database
- • Five9 is 1 of 194,140 information technology & services companies tracked in StackWho.
- • 193,618 information technology & services companies in our database have verified decision-maker emails (100% of the cohort).
- • 53,147 companies in California are in the StackWho database.
- • 1,663 information technology & services companies are in the 1001-5000 employee range (same size as Five9).
Technology detection from public web signals. Decision-maker contacts compiled from LinkedIn public profiles, company filings, and verified outbound testing. Methodology & sources · Updated August 2026.
Frequently Asked Questions
What technology does Five9 use?
Five9 uses Fastly CDN, Salesforce, Cloudflare DNS, MailJet, Mimecast, Outlook, and 46 more technologies. This data is sourced from StackWho's technology detection engine.
How do I contact the decision makers at Five9?
StackWho has verified email addresses for 50 decision makers at Five9. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach Five9 directly for sales, recruiting, or partnerships.
What industry is Five9 in?
Five9 operates in the information technology & services industry, headquartered in San Ramon, California, United States. StackWho tracks technology stacks and decision maker contacts for companies across all industries.
Can I export Five9's contact data?
Yes. StackWho Pro members can export decision maker contact data for Five9 and similar companies to CSV. Use the export feature to build targeted prospect lists segmented by technology stack, industry, or location.
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Decision Makers
Igor Varnava
SVP, CISO at Five9
Kimberly Keith
Vice President, Technical Account Management
Abhijit Salvi
Vice President of Product Management
Briana Lloyd
Administrative Assistant to Chief Technology Officer and SVP of Voice Services
Craig Hanson
VP Technology
Vivek Sinha
VP of Product , Conversational AI @ Five9 | x-Google, Adobe, Marketo, cofounder
Joao Meneses
Engineering Manager - Global Voice
Luis Martins
Engineering Manager
Marina Panova
Software Engineering Manager
Lakshman Nagarajan
Director, Engineering Delivery
Pamela Dickerson
Vice President, Network and Infrastructure
Tory Patnoe
VP of Software Engineering
Roberto Paradinha
Engineering Manager - Global Voice
Eduardo Carneiro
Senior Engineering Manager
Panos Kozanian
Executive Vice President of Product Engineering
Willis Chen
Senior Engineering Manager
Jesse Howard
System Engineering Manager
Max Armstrong
Sr. Director Voice Engineering and Deployment
Aastha Dixit
Senior Cloud Engineering Manager, Product Engineering
Robb Mikytuck
Director of Analytics and Custom Report Engineering at Five9
David Frederick
Sr. Manager, Software Engineering
Amit Kumar
Senior Director Of Engineering
Andrey Ryabchun
Director of Engineering
Nelson Mendes
Engineering Manager
Lev Medvedev
Director Of Engineering
Ravi Kanagala
VP of Engineering, AI and IVA
Jacob Britt
Director - Product Engineering
Uma Udupi
Senior Director of Software Engineering
Chandresh Viradia
Engineering Manager
Dmitry Shikhaleev
VP of Engineering
Tanvi Sachdeva
Software Engineering Manager
Ilya Harahap
SVP Engineering
Kevin Mo
Software Engineering Manager
Jonathan Rosenberg
CTO and Head of AI
Sivakumar Manicka-Chandrasekaran
Software Engineering Manager
Daniel Silva
VP of Engineering
Jose Rodrigues
Engineering Manager - Voice Telco
Jared Quamme
Senior Manager of Software Engineering
Greg Hill
Data Engineering Manager
Ellamae Williams
Sr. Executive Assistant to EVP, Product Engineering & Chief Technology Officer (C-Level)
Daniel Doroshkin
Cloud Engineering Manager , WFO Systems
Sriram Sankaran
Manager, Software Engineering
Ray Soto
Vice President of Engineering & Chief Architect
Frank Chevallier
VP Product Management AI, Digital & Automation
Scott Schwensohn
Mid-Market Sales Director
Cory Conway
Enterprise Sales Director
Marc Braga
Sales Director
Brett Gilbert
Experienced VP Sales
Craig Bernick
Sr. Enterprise Sales Director
Bobby Darling
Regional Sales Director, Mid-Atlantic
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