We detected 525 companies using ReachInbox and 3 companies that churned. The most common industry is Software Development (20%) and the most common company size is 2-10 employees (58%). We find new customers by discovering URLs with known URL patterns through web crawling or certificate transparency logs.
Note: This data tracks whether a company created or removed a custom tracking domain with ReachInbox
Source: Analysis of Linkedin bios of 525 companies that use ReachInbox
Company Characteristics
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Shows how much more likely ReachInbox customers are to have each trait compared to all companies. For example, 2.0x means customers are twice as likely to have that characteristic.
Trait
Likelihood
Funding Stage: Pre seed
28.8x
Funding Stage: Seed
16.8x
Industry: Marketing Services
13.2x
Industry: Software Development
10.8x
Industry: Technology, Information and Internet
9.3x
Country: United States
4.0x
I noticed that ReachInbox users fall into three distinct categories. First, there are AI and software companies building tools for specific business functions like Spellbook for legal teams, Metaview for recruiting, and Footprint for compliance. Second, there's a heavy concentration of marketing and sales service providers including agencies, lead generation specialists, and outbound sales teams. Third, I see traditional service businesses like medical billing, IT consulting, and staffing firms that need consistent client acquisition.
These are predominantly early to growth stage companies. The funded startups cluster around seed to Series B stages with modest funding amounts ($2M to $78M). However, most companies show no funding information and describe themselves as small teams, typically 2-50 employees. They're past the idea stage but still building their customer base and refining their go-to-market approach. The language of "scaling," "growing," and "building" appears constantly.
๐ง What other technologies do ReachInbox customers also use?
Source: Analysis of tech stacks from 525 companies that use ReachInbox
Commonly Paired Technologies
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Shows how much more likely ReachInbox customers are to use each tool compared to the general population. For example, 287x means customers are 287 times more likely to use that tool.
I noticed that ReachInbox users are heavily invested in cold email outbound sales. The overwhelming presence of tools like QuickMail, Instantly, and Cold Email Infrastructure tells me these companies are running sophisticated, high-volume cold email campaigns as their primary go-to-market strategy. They're not dabbling in outbound, they're building their entire sales motion around it.
The pairing of ReachInbox with UnifyGTM Deliverability is particularly revealing. These companies care deeply about email deliverability and inbox placement rates, which means they're sending enough volume that deliverability becomes a real operational challenge. When I see Smart Lead and Instantly alongside ReachInbox, it suggests they're running multi-channel sequences and likely rotating through multiple email accounts to maintain sender reputation. The Cold Email Infrastructure presence in 272 companies confirms they've invested in the technical foundation needed for serious cold outbound, including domain warming, DNS configuration, and mailbox management.
The full stack reveals these are sales-led companies, likely in the early to growth stage where they haven't yet built strong inbound channels or brand recognition. They're compensating for lack of market presence with aggressive outbound tactics. These aren't enterprise companies with long sales cycles, they're probably selling to SMBs or mid-market with relatively short deal cycles where cold email can actually drive pipeline efficiently. The sophistication of their deliverability and infrastructure tools suggests they've moved past the beginner stage and are optimizing for scale.
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