Andreessen Horowitz

Resend is a software company specializing in developer-focused email solutions. It offers an API for sending transactional emails at scale, featuring dedicated IPs for improved deliverability and automatic IP warming. Resend also provides documentation and support for integration with Laravel.

Here Not There Labs is a web3-focused software company building Towns, a blockchain-based messaging protocol and web app for online communities. The Towns platform enables self-owned and self-governed conversations by running on an on-chain protocol, designed to connect the right people at the right time to discuss topics and minimize meetings. The product aims to improve collaboration by linking conversations about work and facilitating decentralized, topic-centered discussions. The company is led by CEO Ben Rubin and comprises web3 creators who build decentralized communication tools for communities.

Pylon is the modern alternative to Zendesk, optimized for B2B. We bring together everything a post-sales teams team needs including a ticketing system, B2B omnichannel integrations (Slack Connect, Microsoft Teams), modern chat widget, knowledge base, AI support bot, account management, customer marketing, and more.

Rasa Technologies GmbH, founded in 2016 and based in Berlin, Germany, specializes in developing machine learning tools for creating conversational software, including chatbots and virtual assistants. The company offers a suite of products, notably Rasa Open Source, a widely adopted framework for building text- and voice-based AI assistants, and Rasa X, a toolset designed to enhance and share these assistants. Rasa Enterprise provides an enterprise-grade solution for developing contextual assistants at scale. Rasa's platform is utilized across various industries, including healthcare, insurance, banking, telecommunications, and travel, focusing on applications such as lead generation, internal process automation, and customer service. The company is known for its commitment to data privacy and security, catering to both startups and large enterprises.

Character.ai develops an open-ended conversational platform where users can create characters and engage in dialogues. The company focuses on neural language models to power these interactions, facilitating creativity, learning, and entertainment.

Svix is a webhooks-as-a-service platform that enables companies to send webhooks reliably and build integrations and workflow automation. Founded in 2021 and headquartered in New York, Svix focuses on deliverability and developer experience, providing tools to monitor endpoints, inspect logs, and view reports. The platform serves organizations of all sizes, offering a scalable solution to integrate systems and automate event-driven workflows with robust reliability and visibility.

Co:Create operates a curated platform that connects tattoo collectors with artists, offering access, white-glove service, and priority booking for purchases made directly from partnered artists. The platform supports detailed scheduling, discussions on customization and placement, and aftercare, enabling customers to request custom work or choose from pre-drawn designs created by top tattoo artists.

Alloy Automation is a no-code platform that facilitates the creation and management of integrations for various software-as-a-service (SaaS) applications. Launched in 2019, Alloy enables businesses to efficiently connect sales, marketing, customer support, and messaging applications while automating complex workflows without the need for coding. This approach allows companies to streamline operations, reduce manual tasks, and focus on growth. Alloy's platform is utilized by notable clients, including Amazon and Gorgias, to expedite the deployment of user-facing integrations, offering a significant advantage over in-house development. The company has received substantial backing from prominent investors, including a16z and Y Combinator.

Founded in 2017 by Zeb Evans and Alex Yurkowski, ClickUp provides a versatile workplace productivity platform tailored for various departments. Its customizable tools include task management, docs and wikis, chat, and integrations with popular apps, all accessible from $5 per user monthly.

Pyn is a human resources company founded in 2019 and headquartered in Sydney, New South Wales. The company develops an employee-centric communication platform designed to enhance workplace interactions by personalizing messages and delivering relevant information. Utilizing marketing techniques such as personalization, scheduling, and automated triggering, Pyn's tool helps organizations cut through the clutter of communication, ensuring that employees receive timely and pertinent messages at critical moments. By focusing on employee engagement and effective communication, Pyn aims to improve the overall experience of employees within their organizations.

Founded in 2015, Loom, Inc. develops a video messaging application that enables users to record and capture screen, voice, and face, then instantly share the video link via email or message. Its solution is used across various teams such as engineering, sales, and customer support.

Founded in London in 2019 by Johnny Boufarhat, Hopin operates a live virtual events platform that enables users to create engaging online experiences. It facilitates networking, learning, and interaction through features such as one-on-one meetings, group sessions, keynote presentations, chat messaging, polls, and interactive expo areas.

Rasa Technologies GmbH, founded in 2016 and based in Berlin, Germany, specializes in developing machine learning tools for creating conversational software, including chatbots and virtual assistants. The company offers a suite of products, notably Rasa Open Source, a widely adopted framework for building text- and voice-based AI assistants, and Rasa X, a toolset designed to enhance and share these assistants. Rasa Enterprise provides an enterprise-grade solution for developing contextual assistants at scale. Rasa's platform is utilized across various industries, including healthcare, insurance, banking, telecommunications, and travel, focusing on applications such as lead generation, internal process automation, and customer service. The company is known for its commitment to data privacy and security, catering to both startups and large enterprises.

Sleeper is a fantasy sports platform that connects fans worldwide. It offers real-time news, expert advice, cash prizes, and social features like chat, enabling users to engage in competitive yet communal sporting experiences.

Tandem is a virtual office for remote teams. It allows its users to see, talk to, and collaborate with their team in one click. It was founded by Rajiv Ayyangar, Tim Su, and Bernat Fortet in 2019. It is headquartered in San Francisco, California.

Superhuman is a software platform that enhances email productivity through an advanced application designed for electronic mailing services. It integrates seamlessly with Gmail, offering features such as AI writing assistance, summarization, and social insights. Users can utilize shortcuts to manage their inbox effectively, including the ability to snooze conversations and prioritize important messages. This focus on streamlining email workflows aims to provide a more efficient and organized experience for individuals seeking to improve their communication and productivity.

Rabbit, Inc. is a technology company based in San Mateo, California, that specializes in developing a web and mobile application designed for shared viewing experiences. Founded in 2011, Rabbit enables users to connect with friends through video chat and content sharing, allowing them to watch shows, movies, and videos together in real-time, regardless of their physical location. The platform supports interactions such as creating personalized rooms for group chats, discovering new content, and listening to music collaboratively. By integrating with social media, users can invite friends and engage in shared entertainment experiences, enhancing communication and connection through video and multimedia.

Dispatch is developing a platform for local delivery that utilizes a fleet of autonomous vehicles specifically designed for sidewalks and pedestrian areas. These artificial intelligence-driven vehicles facilitate online ordering, allowing users to have their products delivered directly to their doorsteps. Customers can access their deliveries through text messages, ensuring timely receipt of goods. By integrating advanced technology with local delivery services, Dispatch aims to enhance the efficiency and convenience of last-mile logistics.

Keybase, Inc. is a New York-based company that provides a secure communications platform through its website and open-source command line program. Founded in 2015, Keybase specializes in web verification and encryption software solutions tailored for social media users. Its platform allows users to easily encrypt, decrypt, and share messages using a robust encryption standard, with public keys linked to user accounts on Keybase as well as Twitter and GitHub. Keybase's offerings include end-to-end encrypted chat, file sharing, and cloud storage across multiple platforms, including Android, iOS, and Windows. The company operates as a subsidiary of Zoom Video Communications, enhancing its capabilities in the realm of secure digital communication.

Rabbit, Inc. is a technology company based in San Mateo, California, that specializes in developing a web and mobile application designed for shared viewing experiences. Founded in 2011, Rabbit enables users to connect with friends through video chat and content sharing, allowing them to watch shows, movies, and videos together in real-time, regardless of their physical location. The platform supports interactions such as creating personalized rooms for group chats, discovering new content, and listening to music collaboratively. By integrating with social media, users can invite friends and engage in shared entertainment experiences, enhancing communication and connection through video and multimedia.

ToutApp, Inc. is a software company that specializes in sales communications solutions designed to enhance the productivity of sales teams. Founded in 2010 and headquartered in New York, the company offers a platform that enables users to streamline communication, track leads, utilize templates, and access real-time analytics for lead scoring. This functionality allows sales teams to generate more opportunities and close deals more efficiently. ToutApp serves a diverse clientele, including both enterprises and non-profit organizations, with notable users such as Citrix and ProCore. In 2017, ToutApp became a subsidiary of Marketo, further expanding its capabilities in the sales software domain.

Slack Technologies is a cloud-based business communication and collaboration platform for teams. The service combines messaging, file sharing, voice and video calls, a workflow builder, and extensive app integrations to unify people, tools, and data in a single interface. Sold as software as a service, Slack aims to improve workplace efficiency and information flow across industries worldwide. The company was founded in 2009 and is headquartered in San Francisco, California, originally under the name Tiny Speck before rebranding to Slack. Slack serves organizations of various sizes, providing a scalable platform that streamlines communication and collaboration across departments.

Magin is an iPhone email app that tries to improve where other similar apps fall short by providing unique user interface, combined with cool features. The app tries to focus on most of the key things in email and makes them better by providing user experience that will make your actions seem fast and fluid. The app also tries to incorporate gestures and hand movements to excel the user experience, and combine these with unique animations that makes the interface to look lively and attractive. Being in such a crowded space Magin tries to differentiate from it's competitors by combining unique user interface with great features and aims to boost your productivity, whereas other similar apps are trying to "just work", Magin make it all seem like magic.

App.net is an ad-free, subscription-based social networking and development platform that was launched in August 2012. Owned and operated by Mixed Media Labs, which was founded by CEO Dalton Caldwell and CTO Bryan Berg, the company aims to serve as the backbone of the social web. App.net provides a robust infrastructure that enables developers to create various social applications, including group messaging, photo and document sharing, and microblogging. The platform focuses on facilitating meaningful interactions among its members while maintaining a commitment to an uninterrupted user experience free from advertisements.

Swell is a voice-based social platform that facilitates asynchronous audio conversations, allowing users to engage in discussions without the need for simultaneous online participation. The application enables listeners to share ideas, ask questions, and tell stories through audio posts, fostering an interactive and engaging environment. Users can respond with their own audio contributions, promoting a dynamic exchange of perspectives and experiences. The platform supports posts that can include links, photos, and audio clips of up to five minutes, encouraging authentic conversations and community building.

MessageMe is a mobile messaging application designed to enhance communication through personalized and emotionally engaging interactions. The platform focuses on creating a fun and lightweight user experience, encouraging users to send and respond to messages in a dynamic manner. By applying techniques from social gaming, MessageMe aims to enrich the emotional context of messaging, thereby increasing user engagement and excitement. The company has attracted interest from major players in the tech industry, including Snapchat and Truecaller. Ultimately, MessageMe was acquired by Yahoo for a sum estimated between $30 million and $40 million, reflecting its potential in the competitive messaging app landscape.

Talkray is a developer of a mobile communication application that transforms smartphones into a walkie-talkie, allowing users to make free calls and engage in chat. The application facilitates the sharing of photos, videos, and location information, enhancing connectivity among users. Available for both Android and iPhone platforms, Talkray aims to provide a seamless communication experience for individuals looking to stay in touch with family and friends.

MessageMe is a mobile messaging application designed to enhance communication through personalized and emotionally engaging interactions. The platform focuses on creating a fun and lightweight user experience, encouraging users to send and respond to messages in a dynamic manner. By applying techniques from social gaming, MessageMe aims to enrich the emotional context of messaging, thereby increasing user engagement and excitement. The company has attracted interest from major players in the tech industry, including Snapchat and Truecaller. Ultimately, MessageMe was acquired by Yahoo for a sum estimated between $30 million and $40 million, reflecting its potential in the competitive messaging app landscape.

Tomfoolery is a mobile app lab founded by ex-Yahoo and AOL execs committed to making enterprise solutions more consumer-friendly. Its debut app is the conversation platform Anchor. Anchor allows users to share files from Box.com and Dropbox, syncs with Evernote, and lets companies create company directories on the platform — a listing of all employees who are on Anchor — which can be used to find email and phone details, as well as link for chatting.

Asana, Inc. is a software company that specializes in work management and productivity solutions. Founded in 2008 and headquartered in San Francisco, California, Asana offers a cloud-based platform that enables individuals and teams to organize, track, and manage their work efficiently. The platform allows users to create projects, assign tasks, set deadlines, and facilitate direct communication, thereby enhancing collaboration and engagement. Designed for various use cases, including project management and process oversight, Asana's tools provide real-time visibility into workflows and incorporate reporting and automation features. The company generates revenue through software subscriptions based on the number of users, making its services scalable and adaptable to different organizational needs.

Skout, Inc. is a social networking company founded in 2007 and headquartered in San Francisco, California. The platform serves as a global app designed to help users meet new people and expand their social circles, facilitating connections in over 180 countries and available in 16 languages. Users can engage with one another through chat, photo sharing, and virtual gifts, enhancing their social experiences. In 2015, Skout facilitated over 680 million connections and enabled users to embark on more than 16 million virtual journeys through its Travel feature. As of 2016, Skout operates as a subsidiary of MeetMe, Inc.

FamilyLeaf is a private place to share your life with your family. You create a private page where your family can easily share photos, share life updates, store contact information, and post messages. Our mission is to bring families around the world closer together. Family is the most irreplaceable but overlooked social network; we want to help you share the little things that build a lifetime of love!

Flotype Inc. is a venture-backed company building a suite of enterprise technology for real-time messaging. Flotype takes a unique approach by building developer-friendly technologies focused on ease-of-use and simplicity, while still exceeding enterprise-grade performance expectations. Flotype licenses enterprise-grade middleware, Bridge, to customers ranging from social web and software enterprises to financial and fleet management groups. Other offerings include NowJS, a free, open-source framework, for developers seeking real-time interactivity on Node.js and JavaScript browsers. NowCluster is available for companies seeking scalability and reliability for NowJS applications. Established in 2010 and based in Berkeley, California, Flotype is venture-backed by Andreessen Horowitz, Ignition Partners, InterWest Partners, and Salesforce.com.

Slack Technologies is a cloud-based business communication and collaboration platform for teams. The service combines messaging, file sharing, voice and video calls, a workflow builder, and extensive app integrations to unify people, tools, and data in a single interface. Sold as software as a service, Slack aims to improve workplace efficiency and information flow across industries worldwide. The company was founded in 2009 and is headquartered in San Francisco, California, originally under the name Tiny Speck before rebranding to Slack. Slack serves organizations of various sizes, providing a scalable platform that streamlines communication and collaboration across departments.

Slack Technologies is a cloud-based business communication and collaboration platform for teams. The service combines messaging, file sharing, voice and video calls, a workflow builder, and extensive app integrations to unify people, tools, and data in a single interface. Sold as software as a service, Slack aims to improve workplace efficiency and information flow across industries worldwide. The company was founded in 2009 and is headquartered in San Francisco, California, originally under the name Tiny Speck before rebranding to Slack. Slack serves organizations of various sizes, providing a scalable platform that streamlines communication and collaboration across departments.

Asana, Inc. is a software company that specializes in work management and productivity solutions. Founded in 2008 and headquartered in San Francisco, California, Asana offers a cloud-based platform that enables individuals and teams to organize, track, and manage their work efficiently. The platform allows users to create projects, assign tasks, set deadlines, and facilitate direct communication, thereby enhancing collaboration and engagement. Designed for various use cases, including project management and process oversight, Asana's tools provide real-time visibility into workflows and incorporate reporting and automation features. The company generates revenue through software subscriptions based on the number of users, making its services scalable and adaptable to different organizational needs.

Skype is a messaging and VOIP service that enables voice and video calls, chats, and file transfers over the internet. It supports group video conversations and cross-device use on phones, computers, and other screens. The service includes features such as voicemail and call-forwarding, end-to-end encryption for calls and chats, and flexible options for personal or business use. Skype is a product of Microsoft, developed since its launch in 2003, and is associated with connecting people, colleagues, and customers across different locations, facilitating collaboration and communication globally. It is headquartered in Luxembourg.