About ÖSA

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ÖSA is a sustainability agency that certifies hospitality properties through measurable waste reduction, product-based transformation, and guest-facing environmental impact. Established in Los Angeles, ÖSA was created in response to the gap between marketing language and material reality—designed to bring clarity, credibility, and aesthetic integrity to sustainability in hospitality.

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With a foundation in real-world solutions and design-led strategy, ÖSA partners with hotels, resorts, cruise lines, and other hospitality platforms to help them reduce waste, verify their progress, and elevate their brand identity through sustainability. Our work centers around what guests actually see, touch, and experience,

because that’s where trust is built.

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We work globally and partner with some of the world’s leading eco-conscious groups and forward-thinking properties.

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We certify what’s real. Our work isn’t symbolic, it’s tangible. We look at what’s actually inside the guest room, how it’s made, how it breaks down, and what it replaces. Every item matters, and every swap is verified. This is how real sustainability takes form.