First In

First In is a venture capital firm established in 2020 and located in Nashville, Tennessee. The firm focuses on investing in companies that tackle significant opportunities and challenges faced by commercial and government enterprises due to the exponential growth of data. First In primarily targets firms that specialize in data and security, seeking to support innovative solutions from inception to seed stage. By concentrating on modern security technologies, First In aims to enhance both enterprise operations and societal safety.

Renny McPherson

Managing Partner

16 past transactions

Castelion

Series A in 2025
Castelion is a defense technology company that specializes in modernizing military systems. It applies advanced hardware development and manufacturing methods to address key national security challenges, focusing on affordability, scalability, and supply chain resilience. Castelion offers services like high-speed hypersonic testing, thermal protection systems, and avionics, designed to integrate with existing platforms and enhance military capabilities while mitigating these critical concerns.

Pryzm

Pre Seed Round in 2024
Pryzm develops an AI-driven platform designed to expedite government contract acquisition for businesses. Its solution provides unified contact management, relationship mapping, data integration, AI-powered research, program discovery, and market tracking features.

Dapple Security

Pre Seed Round in 2024
Dapple Security is a developer of a digital security technology platform focused on protecting human digital identity. The company offers a first-of-its-kind passwordless solution that employs responsible biometrics and adheres to privacy by design principles. This innovative platform enables enterprises to safeguard against phishing and various cyber attacks, enhancing overall security for users. By prioritizing user privacy and employing advanced technology, Dapple Security aims to create a safer digital environment for individuals and organizations alike.

Adlumin

Series B in 2023
Founded in 2016, Adlumin operates a security automation platform designed to detect threats, malfunctions, and IT failures. Its platform collects and analyzes data from various sources, offering features like One-Touch Compliance Reporting for financial auditors. The company empowers organizations with advanced technology and expert guidance for proactive cybersecurity and efficient IT operations.

AnySignal

Seed Round in 2023
AnySignal specializes in developing innovative radiofrequency (RF) capabilities for challenging global tasks. They offer comprehensive solutions for modern aircraft, satellites, and national security sectors, spanning communications, radar, navigation, RF sensing, and vehicle telemetry management systems.

Castelion

Seed Round in 2023
Castelion is a defense technology company that specializes in modernizing military systems. It applies advanced hardware development and manufacturing methods to address key national security challenges, focusing on affordability, scalability, and supply chain resilience. Castelion offers services like high-speed hypersonic testing, thermal protection systems, and avionics, designed to integrate with existing platforms and enhance military capabilities while mitigating these critical concerns.

Tidal Cyber

Seed Round in 2022
Tidal Cyber is a cybersecurity company that offers a threat-led, threat-informed defense platform designed to shift protection from reactive vulnerability management to proactive, adversary-behavior-centric security. The platform maps adversary tactics, techniques, and procedures to measure and improve the effectiveness of a security stack, providing validated insights into how defenses perform within products and roadmaps. It helps enterprise teams prioritize defenses, eliminate redundant mitigations, and optimize security operations and investments, enabling organizations to define, measure, and enhance their defense capabilities in the face of real-world threat behavior.

Phylum

Series A in 2022
Phylum is a cybersecurity company that defends applications at the perimeter of the open-source ecosystem and the tools used to build software. Its automated analysis engine scans third-party code as soon as it is published to vet software packages, identify risks, inform users, and block attacks. It maintains a comprehensive and scalable database of open-source software supply chain risks that can be deployed across the development lifecycle to fit an organization’s infrastructure and appsec program maturity. The company is led by security researchers and developers with decades of experience in government and commercial sectors. Phylum has earned industry recognition, including the Black Hat 2022 Innovation Spotlight Award and other accolades for workplace quality and information security innovation.

ClearMix

Seed Round in 2022
ClearMix is a video marketing platform that enables clients to create branded video content for sales and marketing teams through a remote production workflow. The platform provides a remote recording studio backed by a network of professional editors, allowing users to film guest interviews and produce polished videos from anywhere at any time. By combining remote capture with expert editing, ClearMix helps organizations efficiently generate promotional and thought leadership content without on-site production, coordinating ideas and delivering finished videos suitable for multiple channels.

Pixm

Seed Round in 2022
Founded in 2015, Pixm specializes in cybersecurity, offering real-time phishing detection using artificial intelligence. Its platform safeguards against zero-day attacks and brand impersonations without relying on whitelists.

Appaegis

Seed Round in 2021
Appaegis simplifies enterprise data access while enforcing strong zero-trust security for remote access. Its patent-pending solution protects data access and gives administrators full control over how enterprise data is used. The company was founded by security veterans with successful security track records.

Shift5

Series A in 2021
Shift5, Inc. is a cybersecurity company that specializes in developing products and systems designed to protect operational technology platforms, such as aircraft, spacecraft, ground combat vehicles, and construction machinery. Founded in 2019 and headquartered in Arlington, Virginia, Shift5 offers a range of hardware and software solutions, including its Shift5 Intake data recorder, which collects and transmits embedded data in real-time to detect intrusions. The company also provides Shift5 Engine, which employs rule-based and model-based analytics for identifying cyber attacks on internal communication networks, and Shift5 Gauge Cluster for data capturing and analytics. Additionally, Shift5 focuses on delivering intrusion detection and prevention capabilities, secure code delivery verification, and fault reporting across various standard and custom protocols, aiding both government and commercial clients in safeguarding critical infrastructure from cyber threats.

Phylum

Seed Round in 2021
Phylum is a cybersecurity company that defends applications at the perimeter of the open-source ecosystem and the tools used to build software. Its automated analysis engine scans third-party code as soon as it is published to vet software packages, identify risks, inform users, and block attacks. It maintains a comprehensive and scalable database of open-source software supply chain risks that can be deployed across the development lifecycle to fit an organization’s infrastructure and appsec program maturity. The company is led by security researchers and developers with decades of experience in government and commercial sectors. Phylum has earned industry recognition, including the Black Hat 2022 Innovation Spotlight Award and other accolades for workplace quality and information security innovation.

Moth + Flame

Seed Round in 2021
Moth + Flame develops immersive learning experiences and virtual reality training technology for enterprise-scale clients across multiple industries. The platform uses artificial intelligence and natural language processing to power adaptive learning programs for hard and soft skills, enabling organizations to deliver immersive VR training and communication at scale.

Base Operations

Seed Round in 2021
Founded in 2015, Base Operations provides a threat intelligence platform that aggregates, visualizes, and interprets street-level crime data. Its solutions include threat assessments, sophisticated visualizations, neighborhood threat ratings, and deployment services, helping organizations minimize risk and protect people and assets globally.

Caveonix

Series A in 2021
Founded in 2017, Caveonix specializes in proactive risk management for hybrid cloud environments. Its flagship product, RiskForesight™, provides full-stack visibility to detect, predict, and mitigate security threats and vulnerabilities across cloud infrastructure, platforms, applications, and data.
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