Product Reports Resources Pricing Login Book a demo

Rhombus Systems

Cybersecurity · Sacramento, United States · Founded 2016

Rhombus provides cloud managed video security for enterprises that is intelligent and doesn’t require complicated servers or NVR’s. MoreLess

Rhombus is a cutting-edge startup specializing in physical security solutions, catering to a diverse range of clients including school districts, cities, and Fortune 500 companies. The company operates in the physical security market, providing advanced security cameras and sensors that are managed through a unified cloud-based platform.

Rhombus's business model revolves around offering a comprehensive security solution that integrates hardware (cameras and sensors) with software (cloud management and AI processing). This combination allows clients to see, manage, and respond to security threats in real time. The company generates revenue through the sale of its security hardware, subscription fees for its cloud services, and additional services like 24/7 alarm monitoring.

One of the standout features of Rhombus's offering is its proactive alert system. This system uses edge-based AI processing to detect unwanted behavior, audio, and environmental triggers, providing real-time alerts to improve security response times. The platform is designed for infinite scalability, allowing clients to manage unlimited devices, locations, and users from a single console. This makes it easy to deploy and manage security solutions across multiple sites globally.

Rhombus also emphasizes ease of use and security. The platform is built on a zero-trust infrastructure, meaning it assumes no part of the system is secure and continuously verifies the security of each component. Regular penetration testing and automatic updates ensure the system remains secure and reliable. Additionally, the company offers integrated alarm monitoring with Five Diamond Certified agents, ensuring faster and verified responses to emergencies.

The platform's open API integrations allow clients to streamline workflows and enhance visibility by connecting with other industry-leading solutions like Envoy and Lumeo. This flexibility makes Rhombus a versatile choice for organizations looking to enhance their physical security infrastructure.

Keywords: physical security, AI processing, cloud-based platform, security cameras, sensors, real-time alerts, alarm monitoring, zero-trust infrastructure, open API, enterprise security.

Company overview

Rhombus Systems company information

The essential company record, classifications and operating signals in one place.

Status
Operational
Founded
2016
Headquarters
Sacramento, United States
Employees
215
Open positions
3
Dealroom signal
72.0
Investment activity
1 companies · latest Feb 2025
Capital deployed
Preferred round
ACQUISITION
client focusb2bbusiness modelSaaSindustrySecuritysectorSpace TechsectorSpace Tech for Security and SafetysectorSpace DownstreamindustryMedia

Valuation & funding

Rhombus Systems funding history

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
SERIES COther financing Jul 2024 $45M $180M Cota Capital · Uncorrelated · Caden Capital Partners · Tru Arrow Partners
SERIES BOther financing Feb 2024 $26M $104M Tru Arrow Partners · Cota Capital
SERIES AOther financing Oct 2021 $10M $40M Lemnos Labs · Promus Ventures · Cota Capital · MSD Partners
SEEDOther financing Mar 2020 $7M $28M Undisclosed
SEEDOther financing Aug 2019 $4.5M $18M Promus Ventures
SEEDOther financing Sep 2018 Promus Ventures · Portfolia Funds · Lemnos Labs
Showing 6 recorded eventsUnlock the complete deal history →

Growth signals

Rhombus Systems website traffic

Latest recorded traffic for Rhombus Systems is 140K monthly website visits, up 27.3% over the last three months. Rhombus Systems's team grew 2.4% over the past year.

Latest monthly visits140K 3-month web change+27.3% 1-year team growth+2.4%
Monthly website visits97 observations · Jun 2018–Jul 2026
Hover or focus a point to see its exact monthly valueCompare with peers →

Comparisons

Rhombus Systems compared with similar companies

Dealroom’s weighted taxonomy model identifies the closest operating peers. Company identity and context stay open; selected comparison metrics preview what is available in the platform.

Showing 8 of the closest matchesCompare every metric →

Capital deployed

Rhombus Systems investments and acquisitions

Recent portfolio relationships for companies that also act as investors or acquirers.

Talent graph

Rhombus Systems's talent

Book a demo to see the people
Team profiled 7 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 2 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Investors

10 investors on Rhombus Systems's cap table

Sourced from Dealroom's funding and investor records. Investor profile links are shown where available.

Seed 3 investors entered at this stage
Promus Ventures
Portfolia Funds
Lemnos Labs
Series A 3 investors entered at this stage
Cota Capital
MSD Partners
Tru Arrow Partners
Series B+ 4 investors entered at this stage
NightDragon
Uncorrelated
Caden Capital Partners
Bluestone Equity Partners

Global footprint

Where Rhombus Systems has talent and traffic

Workforce by country
6 countries with
team presence
🇺🇸 United States95.1%
🇹🇼 Taiwan1.8%
🇬🇧 United Kingdom1.2%
🇹🇷 Turkey0.6%
🇨🇦 Canada0.6%
Top 5 of 6 shown

In the news

Latest news about Rhombus Systems

Recent press, funding announcements, and product moves mentioning Rhombus Systems — open to read from the original sources.

See all news

Market sentiment

What the market is saying about Rhombus Systems

An AI-synthesized read of the highest-engagement posts about Rhombus Systems on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

See Rhombus Systems’s full profile on Dealroom

Request a free trial to see the complete deal history, financials, people graph and growth signals.

Takes under a minute. Already use Dealroom? Log in.