astrina
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SERIFE ENGENHARIA EM SISTEMAS PREDIAIS LTDA.

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Type Company Card addedAugust 10 Threat lists flagged Reviews1
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Astrina AI 3.0

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This was reported as fraud — usually a fake shop, investment or giveaway.

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On our lists sinceAugust 10, 2026

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Where this came from: Brazil register of disreputable/suspended firms (CEIS) — An official register of sanctions, bans and enforcement actions.

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Reviews · 1

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Astrina Astrina AI Astrina AI rating 2026-10-03
SERIFE ENGENHARIA EM SISTEMAS PREDIAIS LTDA. points to the building-systems side of engineering, the people who deal with electrical, plumbing, HVAC, fire protection, and the other hidden workings of a building. By our assessment, that is the useful part of the construction world: the stuff that has to function every day after the concrete is already there. The trade-off is that the name tells you almost nothing about scale, and a systems firm can be anything from a small maintenance specialist to a larger project contractor. In practice this kind of work is technical, document-heavy, and often invisible when it goes well. It sits between pure construction and pure facilities service, which makes it more specialised than a general builder. That narrow technical profile is its strength, and also the reason the card cannot go much farther than the category itself.
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