Tamnoon
Sammamish, US Β· Founded 2021 Β· Delaware corporation Β· 49 employees on LinkedIn Β· 10 known investors
Tamnoon offers an AI-assisted cloud security remediation service that triages, prioritizes, and fixes cloud misconfiguration alerts from CNAPP and cloud security tools. Its AI agent Tami, combined with human cloud security experts, groups findings into remediation initiatives and validates fixes in production to reduce alert backlogs and shorten mean time to remediation for security and engineering teams.
Also known as Tamnoon Inc.
Founders & leadership
Tamnoon was founded in 2021 by Marina Segal.

Board
Investors Β· 10
Also in the syndicate Β· 2
Reported raises Β· per SEC filings
Form D private placements$17M disclosed across 2 of 3 rounds Β· 2023β2024
βΆ$12.7MraisedOct 2024 Β· 13 investors Β· Other TechnologyRule 506(b)
- Marina SegalExecutive Officer, Director, Promoter
- Zohar AlonDirector
- Marcos Castro OsorioDirector
- Idan PerezDirector
- Shay MichelDirector
- Offering amount
- $12.7M
- Amount sold
- $12.7M
- Minimum investment
- $15K
- First sale
- Jul 2024
- Incorporated
- Corporation, Delaware, 2021
- Federal exemptions
- 06b
βΆ$4.3MraisedJun 2023 Β· 22 investors Β· Other TechnologyRule 506(b)
- Marina SegalExecutive Officer, Director
- Zohar AlonDirector
- Idan PerezDirector
- Offering amount
- $5.1M
- Amount sold
- $4.3M
- First sale
- Jun 2023
- Incorporated
- Corporation, Delaware, 2021
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Company profile
researched Aug 2026Tamnoon operates a managed cloud security remediation platform that connects to a customer's existing detection stack β CNAPP, CSPM and cloud-native security tools β and takes findings through to verified fixes. The company positions its offering as closing the "last mile" of cloud remediation: alerts are aggregated in one place, enriched with environment context by Tami, Tamnoon's AI cloud SecOps agent, deduplicated across overlapping sources, and scored on two axes (alert risk and asset criticality) so that issues affecting business-critical assets, which the company calls "crown jewels," are surfaced first. Findings are then grouped into remediation initiatives and converted into engineering tasks containing CLI commands, infrastructure-as-code templates and validation scripts, delivered through tools customers already use such as Jira and ServiceNow.
The service is described as a hybrid of artificial intelligence and human intelligence: Tamnoon's "CloudPros" validate AI output, investigate root causes, and either hand off production-ready fixes to customer engineers or execute remediation themselves. Customers can choose a co-pilot mode, where AI investigates and proposes fixes subject to expert validation, or supervised autopilot, where Tamnoon experts execute changes on the customer's behalf. Each remediation is paired with a prevention plan using cloud-native guardrails so the same misconfiguration does not recur; a patent-pending capability, Tamnoon Prevent, is described as blocking non-secure configurations created in the cloud console before deployment. Adjacent offerings include Managed CDR (cloud detection and response), reporting and compliance, CNAPP migration support, and cloud vulnerability remediation.
The company's engagement model follows a structured 90-day program: integration in weeks 1-2, a business-context session to set protection priorities and KPIs, identification of critical infrastructure and prioritized initiatives, an exposure-reduction campaign, and execution through week 12, with customers asked to spend roughly 30 minutes per week reviewing and approving initiatives.
Founding story
Tamnoon was founded by Marina Segal (CEO), Idan Perez (CTO) and Zohar Alon (Chairman), all of whom were previously associated with Dome9 Security, which was acquired by Check Point in 2018; Israeli press reported a 2022 founding date. The name derives from the Hebrew word for octopus, chosen by the founders to evoke intelligence, problem-solving, adaptability and efficiency. The founders' stated premise is that neither fully automated nor purely human cloud remediation can handle the complexity of cloud security posture management, and that expert human knowledge is needed to extract value from modern detection tooling.
Business model
Tamnoon sells a managed service layered on top of customers' existing cloud security tooling rather than a replacement detection product, combining software (the Tami agent and remediation platform) with delivery by its own cloud security experts. The company states customers achieve results while investing about 10% of the resources traditional professional services would require, and that comparable outcomes would otherwise require hiring up to 10 times the cloud security headcount.
Publicly described as a managed offering with a "Plans" page and demo-led sales; specific pricing terms are not disclosed in the available material.
Traction
At the time of its September 2024 Series A, Tamnoon said it had more than doubled its customer base in the year since its seed round and served organizations across North America in insurance, entertainment, healthcare, retail and professional services, with roughly 20 employees split between Israel and the United States. Company marketing materials cite 6 million alerts resolved by Tami, 13,000 hours saved per week, 97% exposure reduction in 90 days, a 72% MTTR reduction, and 90% reduction in critical alerts within 90 days. Recognition includes RSAC Launch Pad 2024 finalist, the inaugural Wiz Integrations Partner Award (2025), and Customer Educator recognition in the WIN Partner Index 2025.
Latest developments
In May 2026 Tamnoon announced an expansion of its Tami engine into a skill-based orchestrator for automated fixes, positioning the company as a cloud security platform built for the "Frontier AI era." In January 2026 it was recognized as a Customer Educator in Wiz's inaugural WIN Partner Index 2025. It has also published a State of Cloud Remediation 2026 report and introduced a Tamnoon MCP for Cortex, agentic remediation skills tailored to customer environments, and a remediation confidence score.
βΈFull profile β market position, technology, go-to-market, geography, history, risks & controversies
Market position
Tamnoon describes itself as the first and only hybrid human-AI managed service purpose-built for cloud security remediation, and as a pioneer in managed cloud remediation, drawing an analogy to how MDR changed the SOC. It positions itself as complementary to rather than competitive with detection vendors, operating in the cloud security segment that Gartner expected to grow 24% in 2024 to $7 billion, per the company's Series A announcement.
Tamnoon's stated differentiators are the pairing of AI automation with human expert validation before changes reach production, accountability through to verified closure rather than stopping at recommendations or tickets, tool-agnostic operation across the customer's existing detection stack, prevention plans and guardrails attached to every remediation, and an AI agent trained on accumulated real-world remediation outcomes rather than a purely model-driven approach.
Technology
The core technology is Tami, an AI cloud SecOps agent trained on years of real-world remediation data spanning millions of alerts. Tami performs active investigation of cloud environments and alert metadata to determine attributes such as environment, encryption state, public exposure and organizational ownership; it deduplicates and aggregates overlapping findings from multiple detection sources, applies risk and asset-criticality scoring, and generates remediation plans with CLI commands, IaC templates and validation scripts. Additional components include agentic prioritization, agentic investigation, agentic remediation, RBAC integrations for asset-ownership mapping, a remediation confidence score, a Tamnoon MCP for Cortex, and a skills orchestrator introduced in 2026 that assembles automated fixes from skills built around the customer's environment. Tamnoon Prevent is a patent-pending capability for real-time prevention of insecure configurations at creation time.
Go-to-market
Go-to-market is partner- and content-led: Tamnoon integrates with and co-markets alongside major cloud security vendors, having served as a launch partner for Wiz Integrations and Wiz Defend and as a Check Point CloudGuard partner, and it maintains a partner program, blog, research reports (including a State of Cloud Remediation 2026 report), webinars, playbooks, case studies and an academy. Direct sales run through demo bookings.
Enterprise security and engineering teams that already run CNAPP/CSPM tooling and face large alert backlogs, including organizations in insurance, entertainment, healthcare, retail and professional services. Named or quoted customers include Warner Music Group, Neptune Technology and Zinnia. The company says it serves environments ranging from 5 to 5,000 cloud environments.
Geography
Press releases are datelined Seattle, Washington, with earlier releases from San Francisco; Israeli press reported roughly 20 employees split between Israel and the United States. Customers are described as spread across North America.
History
The company's public timeline begins with interviews and webinars featuring CEO Marina Segal in 2023 on CSPM maturity and cloud posture management. In June 2023 Tamnoon became a launch partner for Wiz Integrations (WIN). In September 2023 it raised $5.1 million in seed funding, led by Merlin Ventures and Secret Chord Ventures, and appointed Ran Nahmias as Chief Business Officer and Jonathan Lebowitsch as VP of Technical Services. In November 2023 it announced an integration with AWS Security Hub. In April 2024 it was named a finalist at RSA Conference Launch Pad. In September 2024 it announced a $12 million Series A led by Bright Pixel Capital, bringing total funding to over $18 million, and in December 2024 became a launch partner for Wiz Defend. In June 2025 it launched Managed CDR and a new AI cloud SecOps agent, and in July 2025 received the inaugural Wiz Integrations (WIN) Partner Award. In January 2026 it was recognized in the WIN Partner Index 2025 as a Customer Educator, and in May 2026 it expanded Tami into a skill-based remediation orchestrator.
Risks & controversies
Tamnoon's own materials note the inherent risk of applying automated changes to production cloud infrastructure without oversight, which can cause outages, and cite that only 9% of cloud misconfigurations are fixed in real time with automation; the service model depends on scarce cloud security expertise for its human validation layer. The company is small relative to the platform vendors it integrates with, and its distribution is closely tied to partnerships with those vendors, notably Wiz.
Compiled by commissioned research from 8 cited public sources β announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed β not independently audited.
Competitors Β· 10
by search overlapCompanies competing with Tamnoon for the same Google search keywords, organic and paid, via search-intersection analysis.
Timeline Β· 12
launches, deals, and filingsTamnoon expanded its Tami AI engine into a skill-based orchestrator delivering automated fixes drawn from millions of real cloud remediations.
Tamnoon was named a Customer Educator in the inaugural WIN Partner Index 2025 published by Wiz.
Wiz recognized Tamnoon with its first WIN Partner Award as the WIN ecosystem surpassed 200 integrations.
Tamnoon launched Managed Cloud Detection and Response, built on AWS and launching with Wiz Defend, Amazon GuardDuty, CrowdStrike Falcon and Orca Security, alongside a new AI cloud SecOps agent.
Tamnoon announced its status as a launch partner for Wiz Defend, extending detection and response coverage for mutual customers.
Series A round led by Bright Pixel Capital (formerly Sonae IM) with Blu Ventures, Mindset Ventures, Merlin Ventures, Secret Chord Ventures, Inner Loop Capital and Elron Ventures, bringing total funding to over $18 million.
$12M source β
Tamnoon was selected as a finalist at RSAC Launch Pad 2024 alongside Knostic and Culminate.
Tamnoon announced an integration with AWS Security Hub covering prioritization through prevention.
Tamnoon announced $5.1M in seed funding and appointed Ran Nahmias as Chief Business Officer and Jonathan Lebowitsch as Vice President of Technical Services.
$5.1M source β
Tamnoon was selected as a launch partner for Wiz Integrations, bringing its proactive remediation capability into the WIN ecosystem.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
Legal entities Β· 1
corporate structureIn the news
βΈResearch sources Β· 8
primary sources listed
- Tamnoontamnoon.io Β· web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Tamnoon do?
- Tamnoon provides a managed cloud security remediation service combining an AI agent, Tami, with human cloud security experts.
- Who founded Tamnoon?
- Tamnoon was founded by Marina Segal in 2021.
- Who are Tamnoon's investors?
- Tamnoon's investors include AlphaDrive, Bright Pixel Capital, Inner Loop Capital, Mindset Venture, toDay Ventures, Elron Ventures, Merlin Ventures, Secret Chord Ventures.
- How much funding has Tamnoon raised?
- Tamnoon has disclosed $17M raised across 2 of its 3 known rounds.
- Where is Tamnoon headquartered?
- Tamnoon is headquartered in Sammamish, US.







