Mattermark vs ReachStream: One Is Legacy, One Is Active - Here's What to Use Instead
What Happened to Mattermark?
Mattermark covered about 4 million companies with 80+ data fields, growth signals, and Salesforce enrichment during its active years. It was genuinely useful for deal professionals at its peak.
Then it ran out of runway. In December 2017, TechCrunch reported the sale to FullContact for under $1M in cash plus stock - after the company had raised over $17M in venture capital. A 2019 blog post claimed Mattermark had returned as an independent company at $49/user/month, but we couldn't verify any meaningful product activity past that point. Hacker News users who tried it near the end reported a "terribly outdated" database and broken contact features. Mattermark is a cautionary tale, not a buying option.
ReachStream in 2026
Use ReachStream if you're a small sales team that needs affordable B2B contact data without a big commitment. The free Icebreaker plan gives you 2,400 email views and 1,200 export credits per year - no credit card required. Paid plans start at $39/mo.
The database covers 200M+ profiles across 400+ industries and 150+ countries, with 20+ contact insights per profile. ReachStream claims 95% data accuracy. On G2, it holds a 4.8/5 from 52 reviews, with data accuracy (17 mentions) and ease of use (12 mentions) among the most-cited positives. Capterra reviewers rate it 5.0/5, though from only 6 reviews - one switcher from Apollo.io said at least 60% of Apollo emails were bouncing in Neverbounce, and found ReachStream's data significantly cleaner.
Skip ReachStream if CRM integration is critical to your workflow. The most consistent G2 complaint (5 mentions) is integration issues, including clunky HubSpot and Salesforce syncing. Several reviewers noted they had to export to XLS and manually import into their CRM or sequencer. You'll also find occasional reports of outdated contacts and slow loading times. Here's the thing: for a sub-$100/mo tool, those tradeoffs are reasonable. But if you're running outbound at any real volume, manual CSV imports will eat your week alive.
ReachStream's CRM integration issues mean manual CSV exports. Prospeo connects natively to Salesforce, HubSpot, Smartlead, Instantly, and 6 more tools - with 98% email accuracy and a 7-day data refresh cycle. No spreadsheet wrangling required.
Stop exporting CSVs. Push verified contacts to your CRM in one click.
Pricing Compared
| Feature | Mattermark (Historical) | ReachStream | Prospeo |
|---|---|---|---|
| Status | Legacy / uncertain | Active | Active |
| Starting price | $49/user/mo (2019) | $0 (free tier) | $0 (free tier), ~$0.01/email on paid |
| Database size | ~4M companies | 200M+ contacts | 300M+ profiles |
| Email accuracy | Unknown | 95% claimed | 98% verified |
| Verified mobiles | Not a focus | Not emphasized | 125M+ |
| Export credits (entry paid) | N/A | 60,000/yr (Glacier) | Credit-based, no annual lock |
| Data refresh | Daily updates (historical) | Not disclosed | Every 7 days |
| CRM integrations | Salesforce + API (historical) | SF, HubSpot (limited) | SF, HubSpot, + 8 more |
ReachStream's paid tiers break down cleanly: Glacier runs $39/mo ($29 annual) with 60,000 export credits per year, Ice Floe is $59/mo ($49 annual) with 120,000 credits, and Polar Peak hits $99/mo ($79 annual) with 240,000 credits. All plans include the Chrome extension and ESP-verified emails, with the annual discount saving about 20%.
ReachStream is the best sub-$100/mo B2B data tool for teams that just need contacts and don't care about workflow automation. But the moment you need native CRM push, intent signals, or verified mobiles, you've outgrown it.
A Stronger Pick for 2026
You also get 125M+ verified mobile numbers with a 30% pickup rate, intent data tracking 15,000 topics via Bombora, and data that refreshes every 7 days - the industry average is six weeks. Native integrations cover Salesforce, HubSpot, Smartlead, Instantly, Lemlist, Clay, Zapier, Make, and more. No annual contracts. No "talk to sales" gates.
ReachStream claims 95% accuracy. Prospeo delivers 98% verified emails across 300M+ profiles, plus 125M+ mobile numbers with a 30% pickup rate. At ~$0.01 per email, you get cleaner data than Mattermark ever had - without the integration headaches ReachStream users keep reporting on G2.
75 free emails per month. See the accuracy difference yourself.
FAQ
Is Mattermark still active in 2026?
Effectively, no. It sold to FullContact in 2017 for under $1M after raising $17M+ in venture funding. A 2019 blog post claimed it returned independently, but there's no verifiable product activity since. Treat it as legacy.
What's the most accurate B2B email database in 2026?
Prospeo leads with 98% verified email accuracy across 300M+ profiles, backed by a proprietary 5-step verification process and a 7-day data refresh cycle. ReachStream claims 95%. ZoomInfo's email accuracy sits around 87%. For outbound teams where bounce rates directly impact domain health, that accuracy gap compounds fast - the consensus on r/sales is that anything below 95% accuracy isn't worth the risk to your sending infrastructure.