Federal contractor profile

YANGCHEN L. ROTTO

UEI EKDEXS7R5NS1CAGE 9K9Y7

Small Business

Overview

Legal name: YANGCHEN L. ROTTO
Registered location: SANTA FE, NM, USA
Primary NAICS: 541990 — All Other Professional, Scientific, and Technical Services
Latest award activity: Jul 13, 2026

Read company summary

YANGCHEN L. ROTTO is associated with UEI EKDEXS7R5NS1 and CAGE 9K9Y7 in public federal records. AcornBids currently links 2 prime awards totaling $2.4K in obligations to this entity. Its largest recorded federal customer by obligations is Department of the Interior. Its recorded federal awards include work classified as Other Scientific and Technical Consulting Services; All Other Professional, Scientific, and Technical Services. These categories describe the loaded award records, not a complete list of company capabilities. Its primary SAM.gov NAICS is 541990 (All Other Professional, Scientific, and Technical Services). Its public SAM.gov registration lists SANTA FE, NM, USA.

At a glance

Lifetime prime obligations$2.4K

Prime awards2

Awards with future end dates0

Top-agency concentration

Not available

Why this customer concentration

Detailed agency totals are not available in this stored profile.

Largest positive coded-agency total ÷ all positive coded-agency totals × 100

Missing data is shown as unavailable.

Prime contract obligations across loaded award records. Obligations are not revenue or contract ceilings. Summary updated Sep 27, 2026. Refresh pending; these totals may be out of date.

Business information

Public SAM.gov registration details.

Legal name: YANGCHEN L. ROTTO
UEI: EKDEXS7R5NS1
CAGE: 9K9Y7
Registered address: 48 CAMINO MARIQUITA, SANTA FE, NM, 87508, USA
Registration status: E
Primary NAICS: 541990 — All Other Professional, Scientific, and Technical Services
SAM activation: Mar 25, 2025
Initial registration: May 6, 2023
Entity start: Apr 30, 2023
SAM updated: Mar 23, 2026
Registration expires: Mar 23, 2026
Fiscal year end: Dec 31
Place of incorporation: NM, USA

View SAM.gov source

Federal award analysis

Net transaction obligations by federal fiscal period.

Transaction history is not available in the loaded data. Annual funding is not estimated from current award totals.

Recent federal awards

Prime contract awards. Select an award to review its history and source evidence.

Award / description	Awarding agency	Obligations	Start date	End date
140G0225P0053STUDENT SERVICE CONTRACT - YANGCHEN ROTTO NEW 6 MONTH SSC ONLY TO COMPLETE 2 YEAR SSC FROM 140G0223P0202	Department of the Interior	$290	Jun 5, 2025	Dec 4, 2025
140G0223P0202STUDENT SERVICE CONTRACT - YANGCHEN ROTTO	Department of the Interior	$2.1K	Jun 20, 2023	Dec 30, 2024

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Registration, certifications & contacts

Registration evidence	Date
SAM updated	Mar 23, 2026
Source loaded	Sep 26, 2026
Initial registration	May 6, 2023
Entity start	Apr 30, 2023

Registration classifications: Small Business. These are separate from the reported certificates above.

Industry	Reported size status
541990 — All Other Professional, Scientific, and Technical Services	Not reported

Contact	Role	Published contact methods	Evidence	Source date
YANGCHEN L ROTTO	Government business	Contact method not published	SAM registration	Not available
YANGCHEN L ROTTO	Electronic business	Contact method not published	SAM registration	Not available

Registered industries

541990 — All Other Professional, Scientific, and Technical Services

Registered products and services

B529 — Scientific Data Studies

Registration classifications and published certificates do not by themselves establish eligibility for a particular solicitation. View SAM source