Mystrika
Selleo is a software development company founded in 2005 with 100-249 employees. They have delivered over 150 projects for clients in Europe, the US, Canada, and Australia. Their expertise includes Ruby on Rails, ReactJS, React Native, EmberJS, and Elixir.
Selleo is a software development company founded in 2005 with a team of 100-249 employees. Headquartered in Bielsko-Biala, Poland, the agency has delivered over 150 software development projects for clients across Europe, the United States, Canada, and Australia. Their technology stack includes Ruby on Rails, ReactJS, React Native, EmberJS, and Elixir.
The agency operates with a minimum budget of $10,000-$25,000 and an average hourly rate of $45. Selleo offers a result-driven process and positions itself as a partner for scaling software engineering and research capabilities. They provide staff augmentation services, allowing clients to extend their in-house teams with full-stack developers.
Selleo's service offerings include staff augmentation, mobile app development, software development, web design, UI/UX design, cloud consulting, software testing, AI development, and DevOps consulting. Their areas of expertise cover custom frameworks (Node.js, React.JS, Ruby on Rails), custom languages (Ember.js), DevOps and cloud (Google Cloud), mobile app technology (React Native), and UI/UX design (dashboard design, interactive design, UX strategy, usability testing).
The agency serves a range of industries including real estate, health care, fintech, HR, higher education, finance, education, design, and software & IT services. Their client types are startups, small businesses, and medium businesses. Notable clients include Neutopia, Universal Avenue, Breezeway, Samewave, SquadLocker, Northpass, ASCEND HIT, 9Teams, TMC Group, and Alyne.
Google reviews give Selleo a 4.7 rating from 57 reviews. Positive feedback highlights the team's collaborative nature, professionalism, and technical excellence. One client reported that Selleo helped scale from $0.5m to $40m. However, a negative review on DesignRush cited poor communication, missed timelines, and poor quality, resulting in a $20k loss on a redesign project.
Selleo's portfolio includes projects such as Defined Careers (software development), Datagame (UI/UX design), B4B Payments (mobile app development), Alyne (software development), Banking & Finance applications (mobile app development), 9teams (mobile app development), Catalyst (mobile app development), and Neutopia (web design). The agency also has team bios for client and team leads and a CTO with experience in multiple programming languages.
Services
- Staff Augmentation
- Mobile App Development
- Software Development
- Web Design
- UI/UX Design
- Cloud Consulting
- Software Testing
- AI Development
- DevOps Consulting
Industries Served
Team Size
Pros
- Clients describe the team as a natural extension of their own, collaborative and invested.
- Helped one client scale from $0.5m to $40m in revenue.
- High standards and positive attitude toward employees and clients.
Cons
- One client reported poor communication, repeated missed timelines, and poor quality, resulting in a $20k loss.
Client Review Analysis
Google reviews show a mix of positive and negative feedback. Positive reviews highlight partnership, scaling, and professionalism. One negative review cites poor communication and missed deadlines.