Haystack App Ltd is a company that develops and offers Haystack, a job discovery and career insights platform primarily for tech professionals. The platform aims to connect job seekers with potential employers by showcasing tech companies, their cultures, and available opportunities. Users can explore job listings, gain insights into company work environments, and access resources to further their career growth. Haystack App Ltd emphasizes matching users with job roles that align with their preferences and skills, thereby facilitating more informed career decisions.