Decibel Partners
Boston, MA · Invests in US · Website
Check size
$100K-$10M
Thesis
Essential infrastructure software used by engineering, security, and data teams. Founded by technical entrepreneurs who deeply understand infrastructure challenges. Partners commit early with conviction and provide hands-on support.
Likely not a fit for
Non-technical founders, consumer apps, companies outside core expertise areas, hardware-only solutions
How they invest
- Lead or follow
- Leads or follows
- Typical decision
- ~2 weeks
- Warm intro
- Preferred
- Involvement
- Takes a board seat
- Fund status
- Actively deploying
- Decision process
- Partnership vote
Partners & team
5 contacts on file
Lauren Ipsen
Partner · Primary contact
Alessio Fanelli
Partner
Jon Sakoda
Founder & General Partner
Dan Nguyen-Huu
Partner
Jess Leão
Partner
Portfolio
Abacus.AI is the leading enterprise AI platform built for banks, credit unions, and financial institutions, providing secure and compliant AI solutions.
Akuity is an enterprise software delivery platform that modernizes application delivery with AI-powered intelligence and continuous deployment.
Answer.AI is a new kind of AI R&D lab which creates practical end-user products based on foundational research breakthroughs. It aims to harness AI for practical applications and improve accessibility through iterative development and research.
Aomni is transforming the way sales teams operate. Our AI-powered platform revolutionizes sales by generating laser-focused value propositions, crafting hyper-relevant sales materials, and tailoring pitches to each stakeholder's unique needs.
Bicycle AI is an agentic analytics platform that turns your real-time operational data into timely insights and automated actions, preventing revenue leaks and driving growth.
Blameless offers the only complete reliability engineering platform that brings together AI-driven incident resolution, blameless retrospectives, SLOs/Error Budgets, and reliability insights reports and dashboards, enabling businesses to optimize reliability and innovation.
Botpress is a complete AI agent platform that allows users to build and customize conversational agents using large language models (LLMs) to guide conversations and tasks. It offers features such as knowledge bases, human handoff, and conversation data management.
Brightwave is the AI research platform built to help professionals understand the world's most complex problems.
Credo AI is a leader in AI governance, helping companies manage AI risks and compliance. The company focuses on responsible AI practices and offers a centralized, automated solution for AI lifecycle governance.
Cube Exchange is a secure, transparent, and efficient digital asset marketplace offering a hybrid platform for trading cryptocurrencies. It aims to inspire confidence in crypto through advanced security measures and a user-friendly trading experience.
Dreadnode is at the forefront of offensive AI research and development, providing advanced tools and solutions for evaluating and enhancing the security of AI systems. Their platform includes offensive agents, AI red teaming, and practice environments for cybersecurity professionals.
Dropzone AI provides an AI SOC Analyst platform that augments security analysts with unlimited intelligence for fast, detailed, and accurate investigations.
Recent activity
- Apr 2026
Mallory AI
Seed · Lead
- Mar 2026
Censys
Series D · Participated
- Jan 2026
Mantis Biotech
Seed · Lead
- Jan 2026
Nanochon
Seed · Participated
- Nov 2025
Nebulock
Growth · Lead
- Nov 2025
Dreadnode
Seed · Lead
- Nov 2025
Scrunch
Growth · Lead
- Nov 2025
Veris.ai
Seed · Lead
Decibel Partners in the news
citybiz
Cybersecurity Startup Ent Emerges From Stealth With $100M in Seed Funding
1 month ago
AlleyWatch
The Weekly Notable Startup Funding Report: 4/5/26
3 months ago
citybiz
Strella Raises $14M in Series A Led by Bessemer Venture Partners
9 months ago
VentureBeat
Amazon and Chobani adopt Strella's AI interviews for customer research as fast-growing startup raises $14M
9 months ago
StateCollege.com
Marriott Hotel to Open Near State College Regional Airport in 2026
11 months ago
SiliconANGLE
Threat hunting startup Nebulock closes $8.5M to grow AI threat detection engine
11 months ago
The Recursive
Czech-founded E2B Raises Series A to Become the “iOS for AI Agents”
11 months ago
CNBC
Venture capitalists bet on Sublime, a startup bringing AI to email security
Dec 2024
Fortune
Inside the mounting litigation and high turnover at startup unicorn Carta
Oct 2023
Business Wire
Dropzone AI Raises $3.5M in Seed Funding to Reinforce the Frontlines of Security Operations Using LLMs
Aug 2023
Similar firms
Early-stage investor focused on data and AI infrastructure, offering deep technical expertise, Silicon Valley–Asia cross-border experience, product and expansion support, and community-building via technical events and peer connections.
Lytical Ventures is an NYC-based venture fund that specializes exclusively in "Corporate Intelligence" (cybersecurity, data/analytics, AI) and is backed by Lyrical Partners, which manages over $10B across multiple asset classes, giving this small cyber-focused fund unusually deep institutional backing compared to typical standalone emerging managers.
An engineer-first solo GP investing in infrastructure startups at repo/demo or GitHub-alpha stage, uniquely comfortable backing founders before products exist. Timothy Chen brings deep technical expertise to early-stage infra founders.
Amplify Partners backs deeply technical enterprise founders in infrastructure, data, AI/ML, developer tools, and security. They take very small initial checks and provide repeated follow-on support, operating like a technical think tank that publishes deep, operator-style essays on AI, data, and developer tooling that founders treat as reference material.
Research briefRead more
Add Decibel Partners to your investor list
Sign up free to save investors, see partner contacts, and track your raise.
Sign up