test IO

test.io

information technology & services

test.io

San Francisco, California, United States

1001-5000 employees

10000000 revenue

LinkedIn Profile

About test IO

exploratory testing, test cases, usability testing, software testing, quality assurance, crowd testing test overnight, on weekends, functional testing, app testing, test case execution, test automation, performance testing, accessibility audits, testing, human experience, aiia, ai infused application, accessibility, usability, quality

test IO's Tech Stack

Decision Makers at test IO

1 contact

Alexander Leonhard

Head of Product and Innovation

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8 technologies detected · 1 decision maker · Emails available

Sales Outreach Angle

Zendesk usage signals a customer support operation. Alternatives, add-ons (AI agents, ticketing automation, CX analytics), and customer feedback tools are strong sales angles.

test IO's Position in the StackWho Database

• test IO 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 test IO).

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 test IO use?

test IO uses Cloudflare DNS, Postmark, Outlook, MailChimp SPF, Zendesk, CloudFlare Hosting, and 2 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at test IO?

StackWho has verified email addresses for 1 decision maker at test IO. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach test IO directly for sales, recruiting, or partnerships.

What industry is test IO in?

test IO operates in the information technology & services industry, headquartered in San Francisco, California, United States. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export test IO's contact data?

Yes. StackWho Pro members can export decision maker contact data for test IO and similar companies to CSV. Use the export feature to build targeted prospect lists segmented by technology stack, industry, or location.