Sayre Associates
About the organisation
(Including clients, projects, emails and financial documents) Sayre Associates, Inc. is a civil engineering and land surveying firm based in Sioux Falls, South Dakota, established in 1969. The company offers a range of services including land development planning, parks and recreation facilities design, drainage and erosion control, and construction administration. They focus on delivering high-quality solutions through collaboration and innovation, serving clients in South Dakota, Iowa, and Minnesota. Their talented team of engineers and surveyors is dedicated to improving community efficiency and quality of life.
What the listing means
Sayre Associates appeared on the dragonforce leak site on 10 June 2026. Groups publish a victim once negotiations stall or as pressure during them, so a listing usually means data was already exfiltrated. This group has published 39 claims in the last 30 days and remains active.
Recommended actions
- Treat any unsolicited message referencing Sayre Associates as suspicious — leaked data gets weaponised for phishing within days.
- If you hold an account on sayreassociates.com, change that password now, update it anywhere you reused it, and enable two-factor authentication.
- Other Business Services organisations should review this group's known TTPs and validate detection coverage against them.
- Watch for follow-on extortion: stolen data is often re-leaked or resold after the initial listing.
- A leak-site listing is a claim made by the attacker, not a confirmed breach — check the organisation's own disclosures before acting on it.
Leak-site evidence
Listing URL https://www.ransomware.live/id/U2F5cmUgQXNzb2NpYXRlc0BkcmFnb25mb3JjZQ==
Show leak-site screenshot
Captured from the group's extortion site. It may contain the victim's data or the attacker's messaging.
