ISS vs OCS:Which is more popular?
In September 2026, OCS had more branded searches than ISS among facilities management companies in New Zealand. OCS had about 320 branded searches, while ISS had 260. OCS made up 4.1% of all facilities management company searches we track, and ISS accounted for 3.3%. When we asked ChatGPT and Google AI Overviews about facilities management companies, OCS appeared in three of the five answers and ISS in one. OCS was mentioned before ISS in every answer.
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Top facilities management companies in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, OCS was mentioned in three out of five: in two of the three ChatGPT answers and in one of the two Google AI Overviews. ISS was mentioned in one out of five: in one of the three ChatGPT answers, but not in either of the two Google AI Overviews. OCS was listed before ISS in every answer.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
- OCS1st
Downer2nd
BGIS3rd- Access4th
NPM Management5th
ISS6th
Spotless7th
Colliers–
Cushman & Wakefield–
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- Access3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- OCS3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Downer2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- BGIS2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- NPM Management2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Colliers1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Spotless1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- ISS1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Cushman & Wakefield0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about facilities management companies
5 answers
Asked ChatGPT
“Which facilities management company should I hire in New Zealand?”
Asked ChatGPT
“What are the best facilities management companies in New Zealand?”
Asked ChatGPT
“What's the best facilities management company in New Zealand for building upkeep?”
Searched Google, AI Overview
“facilities management nz”
Searched Google, AI Overview
“best facilities management company”
- 1OCS
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in New Zealand on October 21, 2026.
Is ISS or OCS more popular in search?
This chart shows how often people search Google for ISS and OCS by name. Each line represents a brand's share of searches for all nine facilities management companies we track, month by month, from searches in New Zealand.
Share of searches by month for OCS, ISS. The figures are in the table below the chart.
View monthly share of searches table
| Month | Downer | Colliers | BGIS | Access | Spotless | OCS | ISS | Cushman & Wakefield | NPM Management |
|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 39% | 31.6% | 12.2% | 3.9% | 3.9% | 4% | 3.2% | 2.1% | 0.12% |
| Nov 2025 | 44.6% | 26.8% | 11.2% | 4.1% | 4.1% | 5.1% | 2.7% | 1.4% | 0.13% |
| Dec 2025 | 39.7% | 30.4% | 12.4% | 2.9% | 4.5% | 4.7% | 3.6% | 1.6% | 0.17% |
| Jan 2026 | 44.3% | 24.8% | 13.9% | 2.9% | 4.4% | 4.4% | 3.6% | 1.5% | 0.14% |
| Feb 2026 | 36.9% | 32.6% | 11.2% | 4.1% | 5% | 3.4% | 5% | 1.8% | 0.13% |
| Mar 2026 | 43.5% | 28.7% | 9.6% | 3.5% | 4.2% | 4.3% | 4.2% | 1.8% | 0.11% |
| Apr 2026 | 40.9% | 29.1% | 10.2% | 3.7% | 4.5% | 5.5% | 4.5% | 1.6% | 0.14% |
| May 2026 | 41.7% | 27.4% | 11.5% | 4.2% | 5.1% | 5.2% | 3.4% | 1.4% | 0.13% |
| Jun 2026 | 38.2% | 30.9% | 11.9% | 5.7% | 3.8% | 4.8% | 3.1% | 1.3% | 0.12% |
| Jul 2026 | 39.7% | 24.1% | 13.7% | 5.3% | 5.3% | 5.5% | 4.4% | 1.9% | 0.14% |
| Aug 2026 | 36.8% | 24% | 14.9% | 4.5% | 10.1% | 4.6% | 3.7% | 1.3% | 0.11% |
| Sep 2026 | 37% | 26.3% | 16.6% | 6.1% | 5% | 4.1% | 3.3% | 1.4% | 0.13% |
How has the ISS and OCS comparison changed over the last 12 months?
3 findings
- The lead changed hands 2 times in the 12 months ending September 2026: ISS took it in February 2026, OCS took it in March 2026.
- Across the 12 months ending September 2026, ISS’s share of searches among facilities management companies in New Zealand moved from 3.2% to 3.3%, and its estimated monthly branded searches held steady at 260.
- Across the 12 months ending September 2026, OCS’s share of searches among facilities management companies in New Zealand moved from 4% to 4.1%, and its estimated monthly branded searches moved from 330 to 320.
How did search popularity change for New Zealand facilities management companies in September 2026?
2 changes
In September 2026, Access overtook Spotless and OCS to rank 4th among facilities management companies in New Zealand, with 6.1% of the searches.
In September 2026, OCS lost share of searches among facilities management companies in New Zealand, from 4.6% to 4.1%.
How are branded searches counted?
3 search terms
Brandwave collects information about searches that people make online using ISS’s and OCS’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
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