List of Callum Integrations

This is a list of platforms and tools that integrate with Callum. This list is updated as of March 2026.

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    Greenhouse Reviews & Ratings

    Greenhouse

    Greenhouse Software

    The only hiring platform you’ll ever need
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    Company Website
    Greenhouse is more than an ATS – they’re a true hiring partner that gives companies of all sizes everything they’ll ever need to get measurably better at hiring. With Greenhouse, organizations can cut recruiting costs and ensure every hire is the right hire. Their industry-leading, AI-powered software supports every stage of the hiring process, from sourcing to onboarding, empowering companies to hire top talent quickly, consistently and fairly – today and as their business grows. With a structured hiring approach at its core, Greenhouse makes it easy to define the role, requirements and attributes of a successful candidate before a job is posted, enabling internal alignment and more confident, data-driven decisions. They’ve helped over 7,500 companies across diverse industry verticals and scaling goals turn talent into a strategic advantage, so they can be ready to hire for what’s next. Some of the most successful companies, like Hubspot, Block, NFL, Lyft, Trivago and HelloFresh, use Greenhouse for data and guidance on the behaviors and capabilities they need to improve their overall hiring performance. They have also received numerous awards showcasing their commitment to product innovation and great hiring, including: G2 Top 50 Best HR Products (2025), G2 Best Enterprise Products (2025), Fortune Best Workplaces (2019–2024) and Inc. 5000 (2018–2024). © 2024, Greenhouse Software, Inc. All rights reserved. "Hire for what's next," “The/Your all-together hiring platform,” "Talent Makers" and the G Logo are trademarks of Greenhouse Software, Inc.
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    HubSpot CRM Reviews & Ratings

    HubSpot CRM

    HubSpot

    Transform customer engagement with an all-in-one platform.
    HubSpot serves as an AI-driven customer platform that combines all the essential software, integrations, and tools required to unify your marketing, sales, and customer support efforts. By utilizing HubSpot’s connected platform, businesses can accelerate growth by prioritizing the most critical aspect of their operations: customer engagement. The HubSpot CRM goes beyond being merely a tool; it is the core of your business operations. This CRM solution empowers your team to cultivate stronger relationships with customers, fundamentally changing how you communicate with them. It provides a seamlessly integrated environment for sales, marketing, and customer service, enabling deep insights into your customer interactions. Everything is neatly organized within an intuitive dashboard that boosts your team's productivity. As your business evolves, our platform is built to scale, offering adaptable solutions that cater to your changing requirements. Additionally, HubSpot CRM features a robust free version filled with vital functionalities, making it an excellent option for forward-thinking businesses. This innovative CRM is set to redefine customer management; every customer interaction represents a chance for growth and improvement. You can schedule a demo to explore our premium offerings, or you may begin using our extensive range of free tools right away.
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    Google Calendar Reviews & Ratings

    Google Calendar

    Google

    Streamline your life and savor every moment effortlessly.
    Make the most of every day by leveraging the latest features of Google Calendar, which enables you to spend less time organizing and more time enjoying your experiences. This innovative application offers a fresh perspective on your schedule through its Schedule View feature, which brings your calendar to life with visuals like images and maps that enhance understanding of your upcoming events. All the information you need is conveniently accessible, providing various views of your day, week, and month, as well as easy access to invitations and a web calendar to help you manage your time effectively. You can rest assured that your events are safely stored online, keeping your address book intact even if your device is misplaced. Effortlessly switch between different calendar formats by navigating between monthly, weekly, and daily views. Moreover, Gmail events like flight bookings and dinner reservations are automatically added to your calendar, ensuring nothing slips through the cracks. You can also organize your tasks right alongside your scheduled events for improved efficiency. Incorporating video conferencing into your calendar appointments is simple, making it easier to stay connected and work together. With intelligent suggestions for event titles, locations, and guests, creating new events becomes a swift and seamless task, enabling you to enhance your planning experience significantly. There’s never been a better way to keep your life organized while enjoying each moment to its fullest.
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