Mystrika
Stamina.io is an all-in-one outbound sales platform that combines B2B data, AI personalization, multi-channel campaigns, and a built-in dialer. It pairs software with a dedicated GTM engineer to help SMBs and agencies generate pipeline without stitching together multiple tools.
Stamina.io positions itself as a complete outbound sales platform for SMBs and agencies, combining data, personalization, sequencing, calling, and reporting in a single workspace. Unlike many sales engagement tools that require stitching together separate solutions for lead data, email infrastructure, and dialing, Stamina offers everything natively. The platform also includes a dedicated growth strategist -- a real GTM engineer who helps configure campaigns, optimize deliverability, and tune performance over time. This hybrid of software and human support is a key differentiator in a crowded market.
The platform's data layer covers over 500 million verified contacts and 50 million companies, with 65+ filters for targeting by job title, seniority, company size, revenue, industry, and tech stack. Verified work emails are provided on every record, and catch-all domains are flagged for deliverability risk. Lists can be pushed directly into campaigns or personalization modules without CSV exports. This tight integration between data and action reduces friction and speeds up campaign setup.
Stamina's personalization engine supports six types of AI-driven variables, enabling zero-setup personalization at scale. The platform also includes a built-in dialer for calling, native inbox warmup, multi-step email campaigns, and AI-powered reply classification. Workflow automation ties everything together, allowing users to build sequences that adapt based on prospect behavior. For agencies, Stamina offers multi-tenant workspaces, white-label options, and per-client campaign reporting.
Pricing is not publicly listed -- interested buyers must contact the sales team for a quote. This is a common approach for platforms that include a dedicated service component. The lack of transparent pricing may be a drawback for smaller teams or those who prefer self-serve evaluation. However, the inclusion of a dedicated GTM engineer adds significant value for users who lack in-house outbound expertise.
Stamina is best suited for SDR teams, GTM leaders, and agencies that want an all-in-one outbound solution without the complexity of integrating multiple tools. it's particularly strong for high-volume prospecting and multi-channel campaigns where data quality, personalization, and deliverability are critical. The platform's agency features also make it a viable choice for firms running outbound on behalf of multiple clients.
Overall, Stamina.io offers a compelling value proposition for organizations that want a unified outbound stack backed by human support. While some features are still maturing and pricing requires a conversation, the combination of native data, personalization, calling, and dedicated strategy makes it a strong contender in the sales engagement category. Teams that value simplicity and hands-on guidance will find it a practical alternative to assembling a patchwork of point solutions.
Features
- Sales engagement tools for finding clients and launching personalized outreach campaigns
- Email deliverability optimization with domain rotation
- Real-time campaign analytics
- LinkedIn content creation and automated workflows
- 500M+ verified B2B contacts with 65+ filters
- AI personalization with six types of variables
- Built-in dialer for calling
- Native inbox warmup
- Dedicated GTM engineer assigned to each client
- Workflow automation and AI reply classification
Pricing
Pros
- Streamlines lead generation with precision
- Effective social CRM tools for building client relationships
- Great integration of sales and marketing tools
- Fast hiring marketplace
Cons
- Some features are still in development (e.g., CRM and marketing tools)
- Pricing not transparent without a demo
Best For
SDR teams, GTM leaders, and agencies running high-volume outbound