Sales Outreach Angle

HubSpot users typically run inbound-led sales motions. Products that integrate with HubSpot (email automation, CRM enrichment, ABM platforms) are natural fits.

Fill's Position in the StackWho Database

  • Fill 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).
  • 47,721 companies in England are in the StackWho database.
  • 74,148 information technology & services companies are in the 11-50 employee range (same size as Fill).

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 Fill use?

Fill uses Amazon CloudFront, Route 53, Amazon SES, Gmail, Amazon Elastic Load Balancer, Google Apps, and 27 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Fill?

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

What industry is Fill in?

Fill operates in the information technology & services industry, headquartered in England, United Kingdom. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export Fill's contact data?

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