# Companies using ONSSI

311 companies in our data use ONSSI, and 62 of them name it in job posts they wrote. From October 2025 to August 2026, 455 job posts named it. Skilled Trades is the role that names it most often.

Data as of November 9, 2026. Source: Sumble.

## Which companies name ONSSI in the most job posts?

Among the companies with the most job posts naming ONSSI are Allied Universal (1,596), Convergint (357) and NextGen Security (162). Unlimited Technology, Inc. is the newest of the five companies in the table, with its first job post naming it in December 2023.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [Allied Universal](https://sumble.com/orgs/allied-universal) | 1,596 | 3 | "Factory certifications in relevant technology platforms is a plus (Software House, Lenel, Brivo, Open Options, Exacq, American Dynamics, Milestone, OnSSI, etc.)." (project manager, Nov 2, 2026) |
| [Convergint](https://sumble.com/orgs/convergint) | 357 | 5 | "Certifications: Product-specific certifications, Industry-specific certifications and/or licenses, Software House, Lenel, Genetec, Avigilon, AMAG, Milestone or ONSSI, AXIS" (site supervisor (data centers) - lima, oh, Nov 4, 2026) |
| [NextGen Security](https://sumble.com/orgs/nextgen-security) | 162 | 1 | "Video Management System Vendor Certifications in Genetec, OnSSI, MaxPro, and/or Milestone." (Senior Technician, Nov 7, 2026) |
| [Siemens](https://sumble.com/orgs/siemens) | 131 | 2 | "…vms, securos, Electrical wiring, avigilon, genetec security center, onssi, lenel onguard, bosch" (Security Systems Project Manager, Jun 22, 2026) |
| [Unlimited Technology, Inc.](https://sumble.com/orgs/unlimited-technology) | 105 | 0 | "Knowledge of: Software House, Lenel, AMAG, Galaxy, Brivo, Bosch, Southwest Microwave, Genetec, and/or Onssi a plus" (Entry Level Installation Technician, Oct 28, 2026) |

## Is hiring for ONSSI growing?

Job posts mentioning ONSSI went from 0.28 to 0.23 in every 10,000 job posts, comparing March to May with June to August 2026. One company accounts for most of that change.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 39 | 1,413,673 | 0.28 |
| Nov 2025 | 32 | 1,822,119 | 0.18 |
| Dec 2025 | 15 | 1,236,103 | 0.12 |
| Jan 2026 | 47 | 1,828,002 | 0.26 |
| Feb 2026 | 45 | 1,856,647 | 0.24 |
| Mar 2026 | 35 | 1,850,711 | 0.19 |
| Apr 2026 | 59 | 1,728,886 | 0.34 |
| May 2026 | 56 | 1,821,509 | 0.31 |
| Jun 2026 | 45 | 1,909,496 | 0.24 |
| Jul 2026 | 41 | 1,815,180 | 0.23 |
| Aug 2026 | 41 | 1,835,698 | 0.22 |

## How do we know which companies use ONSSI?

Employees' profiles account for 80% of the companies here. 62 companies name ONSSI in job posts they wrote. 8 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name ONSSI | 62 | 20% |
| Employees' profiles list ONSSI | 249 | 80% |

## What size are the companies that use ONSSI?

By size, ONSSI users are close to the typical tech page; companies with 50 to 999 employees are the largest group (43%). 75 of its companies have more than 5,000 employees.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 18% | 22% |
| 50 to 999 | 43% | 38% |
| 1,000 to 5,000 | 15% | 17% |
| Over 5,000 | 24% | 23% |

## Where are ONSSI companies based?

80% of ONSSI companies are based in the United States. Its companies are based in 22 countries and territories.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 233 | 80% | 43% |
| Canada | 14 | 4.8% | 3.6% |
| United Kingdom | 7 | 2.4% | 6.4% |
| India | 6 | 2.1% | 6.9% |
| Germany | 4 | 1.4% | 4.4% |
| Australia | 3 | 1% | 2.2% |

## Which roles mention ONSSI most?

ONSSI shows up across many roles. The top one, Skilled Trades, has 37% of the job posts. Skilled Trades posts naming it numbered 54 from March to May 2026 and 46 from June to August.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Skilled Trades | 37% | 168 | 54 | 46 |
| Program Manager | 15% | 67 | 21 | 20 |
| Physical Security | 12% | 56 | 20 | 13 |
| Mid-Market Account Executive | 11% | 52 | 15 | 9 |
| Product Security | 5.1% | 23 | 5 | 6 |
| Security Analyst | 2.2% | 10 | 4 | 3 |

## About this data

Sumble built this page. Sumble gives sales, marketing and other GTM teams technographics and hiring signals for the companies they sell to: the technologies each company uses, which teams are hiring and for what, and who reports to whom. That helps a team know who to contact, why now, and what to say.

Sumble covers more than 3.6 million companies, 93 million job posts collected since 2022 and 194 million employee profiles, and tracks more than 37,000 technologies. It finds which technologies a company uses by reading its job posts and its employees' public profiles.

Sumble has a free plan, and the same data is available through its API and MCP server.

A company counts when its own job posts or its employees' public profiles name the technology. Hiring is that technology's share of all job posts collected each month. Quotes are copied word for word from the companies' job posts.

Every figure on this page comes from Sumble's own analysis, and you won't find it outside Sumble.