Companies Using OneSignal

With over a decade of experience in web crawling and technographic data analysis, I've reviewed OneSignal's adoption patterns across 29,939 active domains and 13,373 enriched company profiles matched to LinkedIn data. OneSignal raised $50M in Series C funding from BAM Elevate in 2022, bringing total financing to over $80M. This analysis covers growth, customer demographics, migration flows, and tech stack composition as of our April 2026 crawl. For category context, see our MarTech statistics overview.

Growth trajectory

From 3 active domains in July 2015, OneSignal hit an inflection point in mid-2016, jumping from 8 to 535 active domains in seven months. That timing aligns with Chrome and Firefox enabling the Web Push API. Growth averaged 12-15% annually through 2024, peaking at 30,933 active domains in December 2024 before pulling back to roughly 23,700 by mid-2025.

The pullback deserves context. Total domains had been declining since mid-2021 even as active counts climbed. OneSignal retained engaged users while shedding dormant integrations. The company now processes 12 billion messages daily for 200,000+ apps with 1.5 billion MAU, per its official stats. The 2025 web detection contraction may reflect the platform's expansion into email and SMS, channels that don't leave a web-detectable SDK footprint.

Sales Signal: This is a maturing platform, not a declining one. Companies running OneSignal since 2017-2019 are locked in and won't churn easily. Position around expansion, not replacement.

"OneSignal's steady climb from 3 domains to 30,000+ over nine years, with zero year-over-year declines until 2025, makes it one of the most consistent growth stories in the messaging space." - Mehmet Suleyman, CEO at TechnologyChecker.io

Customer profile

65.9% of OneSignal customers have 1-10 employees, and 47.4% were founded in the 2010s. This platform lives on indie developers and small app teams. Another 20.1% were founded in the 2020s, confirming OneSignal as a default choice for new projects.

The enterprise tail tells a different story. Our detection data includes Subway, GlaxoSmithKline, KPMG, S&P Global, LG, and Sysco. Most detections land on subdomains (careers.abbvie.com, partner.clientaccess.kpmg.com), not primary marketing sites. OneSignal's published case studies corroborate this pattern: Zenni Optical (the largest online eyewear retailer, with 50M+ pairs sold) doubled engagement and revenue using targeted push. Randstad coordinated 150,000 COVID vaccinations via push. And TAG Heuer manages multi-device messaging across its connected watch ecosystem.

Sales Signal: The subdomain pattern creates upsell opportunity. Companies like KPMG and GSK chose OneSignal for specific projects, meaning other departments are potential targets.

Industry and geographic concentration

No single industry dominates. Technology leads at just 5.36%, followed by three media verticals: Online Audio/Video (4.12%), Book Publishing (4.10%), and Newspaper Publishing (3.96%). Collectively, media and content companies account for over 18% of the base. Push notifications are a retention tool, and content businesses live on returning audiences.

Geographically, OneSignal breaks the typical US-dominated pattern. The United States leads at just 15.1%, followed by Brazil (10.8%) and India (10.7%). Turkey, the UK, and France each claim 4-5%. Case studies reflect this global reach: Kyivstar (Ukraine's largest telecom, 26M+ mobile users) generated 10M UAH/month in incremental revenue through contextual push, while Cashea (Venezuela's first BNPL service) scored its highest push open rate ever.

Sales Signal: The Brazil-India-Turkey corridor needs multilingual push support and timezone-aware delivery. The low US concentration (15.1% vs. 30-50% for most MA tools) means international expansion services are undersold here.

Migration patterns

OneSignal shows a net outflow to every tracked competitor. HubSpot: 1,162 companies left, 555 arrived, a 2.1:1 loss ratio. Brevo is steeper at 4.8:1 (934 vs. 196). Klaviyo runs 8.7:1 (540 vs. 62), though Klaviyo targets ecommerce email specifically.

These numbers track domain-level detection, not subscription cancellations. The outflow pattern reflects companies consolidating into broader marketing platforms that bundle email, CRM, and push. Competitors like Pushwoosh are also targeting OneSignal's base by offering unlimited user journeys on free plans and transparent device-based pricing.

Sales Signal: The 555 companies gained from HubSpot represent teams that tried the big platform and came back to a specialist. This segment values focused functionality over bundled suites.

"The 2.1:1 loss ratio to HubSpot doesn't mean OneSignal is losing the push notification war. It means companies are consolidating vendor stacks, and HubSpot is the gravitational center." - Mehmet Suleyman, CEO at TechnologyChecker.io

Technology ecosystem

Google Analytics appears on 81% of OneSignal domains, well above the 55-60% internet-wide average. Hotjar (11.4%) and Microsoft Clarity (10.2%) reinforce the pattern: these teams measure user behavior, not just traffic. The 14.7% cart functionality overlap confirms a sizable ecommerce segment using push for abandoned cart recovery.

Sales Signal: The analytics-heavy stack signals teams that care about attribution. Tools connecting push engagement to conversions would resonate. The 14.7% ecommerce overlap points to cart automation as a specific upsell path.

G2 review signals

OneSignal holds 4.7/5 across 1,176 G2 reviews. Ease of use and setup (287 mentions) is the top pro, aligning with the 65.9% micro-business profile. Documentation quality (164 mentions) is an unusual strength in messaging tools.

The top criticism is paid plan gating (89 mentions). Looking at OneSignal's current pricing, the free plan caps segments at 6 and data tags at 2. Growth starts at $19/month plus $0.012 per mobile MAU. For a company with 50,000 MAU, that's $619/month before email and SMS costs. Our migration data corroborates the friction: companies outgrowing the free tier face a price jump that pushes them toward bundled alternatives.

Sales Signal: Companies at 10,000-20,000 subscribers are the vulnerability window. Competitors offering smoother upgrade paths can intercept users at this inflection point.

Key takeaways

1. Push-first niche: The only top-10 MA platform built around push notifications. Its 1.9% share understates segment importance.

2. Micro-business core: 65.9% have 1-10 employees. Self-serve, bottom-up adoption. Revenue hit $21.6M with 1.3M customers in 2024.

3. Global distribution: US at just 15.1%. Brazil, India, and Turkey represent high-growth mobile-first markets.

4. Media concentration: Content publishers make up 18%+ of the base.

5. Consolidation pressure: Net outflow to HubSpot (2.1:1), Brevo (4.8:1) signals vendor consolidation, not push abandonment.

6. Proven enterprise cases: Zenni doubled revenue, Beach Bum Games saw 140% paid user reactivation, Randstad coordinated 150K vaccinations.

Sales applications

Outreach template: "Hi [Name], I noticed [Company] runs OneSignal on [subdomain]. Our data shows 81% of OneSignal users also run Google Analytics, so you're likely measuring notification impact. Would a quick call make sense to discuss how [Product] connects push engagement to [conversion goal]?"

Targeting strategy: Filter for OneSignal + 11-50 employees + founded 2015-2020 on TechnologyChecker.io. This segment is past startup phase, likely hitting the free plan ceiling, and evaluating whether to upgrade or consolidate.

Competitive angle: The 1,162 companies migrating from OneSignal to HubSpot are warm leads for migration services, HubSpot onboarding, or integration consulting.

Explore the full dataset of 13,373 enriched company profiles across 29,939 active OneSignal domains on TechnologyChecker.io.