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#84 · Emerging 100 · 2026

Decibel Partners

decibel.vc · Boston, MA

“Essential infrastructure software used by engineering, security, and data teams. Founded by technical entrepreneurs who deeply understand infrastructure challenges.”

$100K – $10M
Check Size
Leads & Follows
Lead Tendency
~2 Weeks
Timeline
01Investment Thesis

Partners commit early with conviction and provide hands-on support.

Exclusion Criteria

Non-technical founders, consumer apps, companies outside core expertise areas, hardware-only solutions

02Investment Team
JS
Jon Sakoda
Founder & General Partner
DN
Dan Nguyen-Huu
Partner
AF
Alessio Fanelli
Partner
JL
Jess Leão
Partner
03F4 Research Brief

Decibel Partners Research

Investment Thesis

Decibel Partners is an independent venture capital firm founded in partnership with Cisco that invests exclusively in essential infrastructure software used by engineering, security, and data teams. The firm believes that the most impactful technology companies are built by technical founders who have deep domain expertise and a passion for solving critical infrastructure challenges.

Sector Focus

Decibel focuses on three primary domains:

Developer Platforms & Infrastructure:

  • Cloud-native application delivery (Kubernetes, CI/CD, observability)
  • Backend development platforms and tools
  • Open source infrastructure projects
  • Software supply chain security
  • Design and prototyping tools for technical teams

Cybersecurity:

  • Application security and vulnerability management
  • Identity and access management
  • Email and endpoint security
  • Attack surface management
  • Threat detection and response
  • Cloud security compliance
  • AI-powered security solutions (agentic threat hunting, autonomous alert investigation)

Data, ML, and AI Infrastructure:

  • Data pipelines and orchestration
  • ML operations and management
  • AI agent platforms and sandboxes
  • Responsible AI and governance
  • Real-time analytics and business intelligence
  • Autonomous software solutions

Stage Focus

Decibel invests primarily in early-stage companies:

  • Seed and early growth companies with initial product-market validation
  • Companies with technical founders and differentiated approaches
  • Strategic follow-on investments in portfolio companies

The firm explicitly maintains a small portfolio to provide focused, hands-on support to each founder.

Investment Approach

Decibel takes a founder-first, expertise-driven approach centered on four core values:

  1. Know Your Domain - Partners maintain deep technical expertise in their focus areas and decline investments outside their domain knowledge
  2. Build Trust Through Transparency - Founders can reach the firm 24/7 with direct, honest feedback
  3. Put Founders First - Success is measured through founder success and the firm actively helps portfolio companies leverage Decibel's resources
  4. Have Conviction. Invest Early - The firm commits resources and time when companies are unproven, recognizing the critical nature of early-stage investment
  5. Play the Long Game - Long-term focus on supporting founders through the many twists and turns of building enduring businesses

Team & Advisory Board

Core Team:

  • Jon Sakoda, Founder & General Partner - Serial entrepreneur and early-stage investor. Former General Partner at New Enterprise Associates where he started their seed program and worked with BlueJeans (Verizon), Cloudflare (NYSE), Elastic (NYSE), MongoDB (NASDAQ), and others. Previously CTO/VP Products at IMlogic (acquired by Symantec). Harvard College graduate.
  • Dan Nguyen-Huu, Partner - Focus on ML/AI, cloud infrastructure, and cybersecurity. Former VP at Battery Ventures leading investments in Databricks, SumoLogic, Expel, Contrast Security, InfluxData. Earlier experience at VMware and UBS technology banking. Forbes 30 Under 30 in VC (2019).
  • Alessio Fanelli, Partner
  • Jess Leão, Partner

Founder Advisors (all entrepreneurs with successful exits):

  • Amy Chang (Accompany founder)
  • Andrew Peterson (Signal Sciences founder)
  • Bhaskar Sunkara (AppDynamics founder)
  • Dug Song (Duo Security co-founder)
  • François Dufour (Founder Advisor)
  • Jon Oberheide (Duo Security co-founder)
  • Mallik Mahalingam (Springpath founder)
  • Marty Roesch (Sourcefire founder)
  • Mohit Lad (ThousandEyes founder)
  • Ricardo Oliveira (ThousandEyes founder)

Portfolio Companies

Decibel has built a substantial portfolio with 50+ portfolio companies across all three focus areas. Notable recent investments and active portfolio companies include:

Developer Platforms:

  • Akuity (Advanced Kubernetes delivery, from Argo creators)
  • Penpot (Open source design platform)
  • Platformatic (Fast backend development)
  • Root.io (Container supply chain security)
  • NocoDB (Open source no-code database tool)
  • Cube (Semantic layer for data apps)
  • UserClouds (Privacy-as-a-service)
  • Botpress (AI conversational platform) - $25M Series B (Jul 2025)

Cybersecurity:

  • Censys (Attack surface management)
  • Blameless (SRE platform, incident response)
  • Pixee (AI-powered application security)
  • SpecterOps (Identity attack path management)
  • Sublime Security (Email threat detection)
  • Pangea (Security services platform)
  • Prowler (Cloud security management)
  • Push Security (Browser-based identity security)
  • Knocknoc (Network orchestration, dynamic access control)
  • Dropzone AI (Autonomous alert investigation)
  • Nebulock (Agentic threat hunting)
  • Nira (Access control for documents, acquired by Dropbox)
  • Censys (Acquired by Elastic)

Data/ML/AI Infrastructure:

  • Abacus (End-to-end AI platform for real-time deep learning)
  • Answer.AI (AI R&D lab with practical products)
  • Veris.ai (Training environment for enterprise AI agents)
  • E2B (Secure sandboxes for AI code execution)
  • Scrunch (AI customer experience platform)
  • Brightwave (AI investment research assistant)
  • Strella AI (Customer research platform with AI interviews)
  • Aomni (AI platform for B2B sales)
  • Credo AI (Responsible AI governance)
  • Magnify (Customer lifecycle management with AI)
  • Fixify (AI-powered IT support)
  • Unconv.ai (AI-optimized computing infrastructure)
  • Pachyderm (ML data pipelines, acquired by HP Enterprise)

Founders in Other Sectors:

  • Spotnana (Travel-as-a-service platform)
  • Mantis BioTech (Simulative AI for biomedical data)

Recent Activity & Deployment

Decibel has been actively deploying capital throughout 2025:

  • Botpress raised $25M Series B (July 2025) with Decibel participation
  • Recent investments in AI security (Nebulock, Veris.ai, Dreadnode, Scrunch)
  • Heavy focus on autonomous AI and agentic solutions
  • Strong engagement in developer-focused PLG and community strategies

The firm demonstrates continued commitment to its focus areas with regular investment activity and portfolio support through published playbooks, founder spotlights, and educational content.

Decision Process & Terms

  • Partnership-based decision making
  • Conviction-driven, founder-first approach
  • Transparent communication and 24/7 founder access
  • Hands-on operational support and strategic guidance
  • Leverages firm's founder advisor network extensively

Geographic Focus

Primarily US-based with concentration in technology hubs. Portfolio spans North America with selective international investments.

Competitive Advantages

  1. Technical Depth - All partners come from technical founder/operator backgrounds, not traditional VC careers
  2. Founder Network - Exceptional advisor board of successful founders across multiple exits
  3. Domain Expertise - Deep focus on three sectors with genuine operational expertise
  4. Accessibility - 24/7 founder access and hands-on support model
  5. Portfolio Synergies - Opportunities for founder learning across portfolio companies
  6. Track Record - Founded in partnership with Cisco, successfully spun out as independent firm

Thesis on Modern Infrastructure

Decibel believes that the next generation of valuable companies will be built on essential infrastructure software that enables engineering teams, security teams, and data teams to build and protect the digital world. The firm sees particular opportunity in:

  • Open source and community-driven infrastructure
  • Product-led growth for developer tools
  • AI/ML becoming foundational to all software
  • Shift toward autonomous and agentic solutions
  • Security becoming a top-of-mind concern for all enterprises
04Selected Portfolio
Biotech & Life Sciences
Mantis BioTech·Nanochon
Crypto & Web3
Cube
Developer Tools & Infrastructure
Platformatic
Enterprise Software
Abacus·Akuity·Answer.AI·Aomni·Bicycle·Blameless·Botpress·Brightwave·E2B·Fixify·Magnify·NocoDB·Pachyderm·Penpot·Propelo·Scrunch·Strella AI·Unconv.ai·Veris.ai
Security & Cybersecurity
Credo AI·Dreadnode·Dropzone AI·Knocknoc·Nira·Pangea·Pixee·Prowler·Push Security·Root.io·runZero·SpecterOps·Sublime Security·UserClouds·Mallory AI·Censys·Ent·Nebulock
Travel & Hospitality
Spotnana
Open the full portfolio→
05Recent Updates

Fresh signals from public announcements, essays, and portfolio activity.

See full activity (11) →
Hosted Decibel's first 'Founder Festival' at RSAC 2026, a 3-day event with over 1,000 founders and early adopters, featuring mainstage talks, a Tiger Cage competition, Global Innovation Showcase, and community meetups.
TALK·decibel.vc
Added recently
Participated in Nebulock's $25M Series A round led by FirstMark, alongside Bain Capital Ventures, Zetta Venture Partners, and Step Function Ventures.
INVESTMENT·nebulock.io
Added recently
Root.io, a Decibel portfolio company offering agentic vulnerability remediation for open-source software, was acquired by Aikido Security.
EXIT·siliconangle.com
Added recently
Punit Minocha, former EVP of Business and Corporate Development at Zscaler, joined Decibel as a Founder Advisor to advise founders on strategic partnerships at the intersection of AI and security.
TEAM CHANGE·decibel.vc
Added recently
Led investment in Mallory, an AI-native threat intelligence platform founded by Jonathan Cran (ex-Google/Mandiant), rebuilding threat intelligence for the agentic era.
INVESTMENT·decibel.vc
Added recently
06Frequent co-investors
AV
Aviso Ventures
Both backed 8 of the same companies
Fixify, Akuity, Mallory AI, SpecterOps,
+4 moreNebulock, Sublime Security, Nira, Dreadnode
BV
Ballistic Ventures
Both backed 2 of the same companies
SpecterOps, Pangea
MV
Mozilla Ventures
Both backed 2 of the same companies
Answer.AI, Credo AI
OC
Operator Collective
Both backed 2 of the same companies
E2B, Cube
PV
Panache Ventures
Both backed 2 of the same companies
Platformatic, Botpress
Find the investors for your round→
07Similar Firms
SC
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→
AV
Aviso Ventures
Pre-Seed · Seed
→
VG
Venture Guides
$2M – $20M · Seed · Series A
→
PV
Preface Ventures
$250K – $2M · Pre-Seed · Seed
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EV
Essence VC
$10K – $2M · Pre-Seed · Seed
→
Quick Reference
Check Size
$100K – $10M
Stages
Seed · Series A
Decision
Partnership · ~2 Weeks
Warm Intro
Preferred
Involvement
Board Seat
Location
Boston, MA
Sector Focus
Biotech & Life SciencesEnterprise SoftwareDeveloper Tools & InfrastructureSecurity & Cybersecurity
Models
Developer ToolsInfrastructure SoftwareCybersecurityAI/ML Infrastructure
Technology
KubernetesCloud NativeOpen SourceAI AgentsObservability
See all Biotech & Life Sciences investors →See all Enterprise Software investors →See all Developer Tools & Infrastructure investors →
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Focus Areas
Biotech & Life SciencesEnterprise SoftwareDeveloper Tools & InfrastructureSecurity & Cybersecurity

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F4 Intelligence Report · Last Researched August 29, 2026F4 Research Engine