William Siembieda from Oswego, IL

Age 91 b. 1935 Kendall Co.
๐Ÿ“ 33 Na Au Say Ct
๐Ÿ“ž (630) 554-9013, (630) 688-5945

William Siembieda from Pismo Beach, CA

Age 82 b. Jun 1943 San Luis Obispo Co.
๐Ÿ“ 116 El Viento
๐Ÿ“ž (813) 681-1114, (805) 556-0488

William J Siembieda from Pismo Beach, CA

Age 78
๐Ÿ“ 116 El Viento, Pismo Beach, CA 93449
๐Ÿ“ž (310) 839-9632, (805) 556-0456, (805) 556-0488

William Siembieda from San Luis Obispo, CA

Age 82 b. Jun 1943 San Luis Obispo Co.
๐Ÿ“ 1397 Ironbark St

William Siembieda from Albuquerque, NM

Age 82 b. Jun 1943 Bernalillo Co.
๐Ÿ“ 2414 Central Ave

William Siembieda from San Luis Obispo, CA

San Luis Obispo Co.
๐Ÿ“ Po Box 13258

Source: Public Records Aggregators ยท Commercial Data Providers ยท Consumer Data Sources Our search returned 6 contact records for William Siembieda across 3 states. The most recent address on file is in Oswego, Illinois. Of these records, 3 include phone numbers. The listed age is 78. Records are compiled from government agencies and commercial data sources. Data accuracy varies by source.

Siembieda William & Joan

Kendall County
· 33 Naausay Ct, NA-Au-Say

Source: County Assessor Records ยท County Recorder Offices ยท State Property Tax Databases We found 1 property record linked to William Siembieda in NA-Au-Say. Values shown are from county assessor records and may differ from current market prices.

William Siembieda

San Luis Obispo, California Area

Source: State Secretary of State ยท SEC EDGAR ยท LinkedIn Professional Data ยท Business Registries 2 business affiliations were found for William Siembieda. Records are compiled from state business registries, SEC filings, and professional networking databases.

$20 Mar 31, 2021
2022 DEM
Harder, Josh
Siembieda, William Not Employed Pismo Beach, CA
$20 Mar 31, 2021
DEM
Harder, Josh
Contributor Not Employed Pismo Beach, CA
$25 Sep 29, 2021
Unknown Committee
Siembieda, William Not Employed Pismo Beach, CA

Source: FEC Disclosure Database ยท State Ethics Commissions ยท Stanford DIME Project 3 political contribution records found for William Siembieda. Total disclosed contributions amount to $65. Recipients include Harder, Josh. Federal law requires disclosure of contributions above $200 to federal candidates.

MP

William J Siembieda

Age 74 Male
·
116 El Viento, Pismo Beach, CA 93449 (San Luis Obispo County)
35.1423, -120.6200
· (805) 556-0488
Marital: Married TZ: Pacific
Occ: Insurance Edu: Some College
Homeowner Single Family Built 1996 Purchased 2001
MP

William A Siembieda

Age 81 Male
·
33 NA Au Say Ct, Oswego, IL 60543 (Kendall County)
41.6342, -88.3621
· (630) 554-9013
Marital: Married TZ: Central
Occ: White Collar Edu: Some College
Homeowner Single Family Purchased 1989

Source: Consumer Marketing Databases ยท Commercial Data Aggregators Marketing databases contain 2 demographic profiles associated with William Siembieda. This data is compiled from commercial aggregators and may include estimated income ranges, lifestyle indicators, and household characteristics. Accuracy is not guaranteed.

Find William Siembieda on the map

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William Siembieda in Oswego, IL: Background Summary

Location
33 NA Au Say Ct, Oswego, IL 60543
Other Locations
Pismo Beach, CA ยท San Luis Obispo, CA ยท Albuquerque, NM
Profiles Found
6 people with this name
Phone Numbers
(630) 554-9013 and 5 others on file
Properties
1property owned
Contributions
$65 total โ€” Harder, Josh

This information is compiled from publicly available records and may include data for multiple individuals with similar names. Data may contain inaccuracies or be incomplete. This information should not be used for employment screening, tenant screening, credit decisions, or any purpose covered by the Fair Credit Reporting Act (FCRA). Always verify information independently before making any decisions.

How to Read This Report

This page aggregates publicly available records from government agencies, court systems, and official registries into a single report for William Siembieda. Because public records are indexed by name rather than by a unique identifier, the 18 results displayed here may include information belonging to multiple individuals who share the same name โ€” a common occurrence, especially for frequently appearing names. To determine which records belong to the person you are researching, compare the location, approximate age, and any associated details across entries. Records that share an address or overlapping timeframe are more likely to refer to the same individual.

What Each Data Category Means

Property Records

Property records originate from county assessor and recorder offices, where real estate transactions, ownership transfers, and tax assessments are documented as a matter of public record. The assessed value shown for a property is the figure used by the county to calculate property taxes and frequently differs from the property's current market value โ€” in many jurisdictions assessed values lag behind market conditions by several years. A property record updates whenever a new deed, lien, or assessment is filed with the county, so the ownership and valuation data shown here reflects the most recent filing available in our sources rather than a real-time snapshot.

Business and Professional Records

Business records are compiled from state Secretary of State filings, SEC EDGAR corporate disclosures, and professional networking data. When a person appears as an officer, director, or registered agent, it reflects a formal role filed with a government agency โ€” these are legal positions of responsibility, not informal job titles. Records sourced from professional profiles represent information that individuals have chosen to make publicly available about their career history, skills, and affiliations. Business entity registrations show current or historical standing with the state, but a listing does not guarantee the entity is still actively operating.

Campaign Finance Contributions

Federal election law requires the disclosure of political contributions exceeding $200 to any single committee in a calendar year. These records are filed with the Federal Election Commission (FEC) and include the donor's name, mailing address, employer, occupation, and the amount contributed. Contributions to state and local candidates are governed by each state's campaign finance laws, which may set different disclosure thresholds. The data shown here reflects what was reported in official filings and may include contributions made over the course of many election cycles, so the dates and amounts should be read in their historical context.

Important Limitations

Public records may contain outdated information, data entry errors, or records that belong to a different person who shares the same name as the individual you are researching. Government agencies update their records on varying schedules, and the data shown here may not reflect the most recent changes. Information on this page is provided for informational purposes only and should not be used for employment screening, tenant screening, credit decisions, or any other purpose regulated by the Fair Credit Reporting Act (FCRA). Always verify critical details through the originating government agency or official registry.

Your Rights

If you are the person described in these records, you have rights regarding your personal data. Under laws including the California Consumer Privacy Act (CCPA) and similar state privacy statutes, you may request the deletion or correction of your personal information. To submit a removal request, visit our opt-out page. For a complete description of how we collect, use, and protect personal data, please review our privacy policy.

Search Results Analysis for William Siembieda

Search Complexity: Moderate

18 public records across 3states, belonging to approximately 6 different individuals. There are 6 distinct profiles in the results. Using the state filter or checking age and address details will help identify the correct individual.

For this search, the Political Contribution Records section may be most helpful for disambiguation because these records include employer and occupation, which are strong distinguishing fields.

Geographic Distribution

Records are moderately distributed across 3 states. Highest concentration: California (50%), followed by Illinois and New Mexico. Spans the West and Midwest regions.

CA9recordsIL3recordsNM2records

Record Type Breakdown

Data spans 4 record categories. Largest: Contact & Address Records (63%), which contain the most specific identifiers like phone numbers, email addresses, and physical addresses. Also includes Political Contribution Records (3) and Business & Corporate Filings (2).

10
Contact & Address Records
3
Political Contribution Records
2
Business & Corporate Filings
1
Property Ownership Records

Frequently Asked Questions About William Siembieda

Does William Siembieda own property?
County assessor records show 1 property associated with William Siembieda . Assessed values are determined by county tax assessors and may differ from market value. These records are sourced from county recorder and assessor offices.
What businesses are associated with William Siembieda?
We found 2 business affiliations for William Siembieda. Business records are compiled from state registries, SEC filings, and professional databases.
Has William Siembieda made political donations?
FEC disclosure records show 3 reported political contributions from William Siembieda, totaling $65. Recipients include Harder, Josh. Federal law requires disclosure of individual contributions exceeding $200.
How many records exist for William Siembieda?
Our database contains 18 total records for William Siembieda spanning 3 states. This includes 6 distinct contact records, 3 with phone numbers. Multiple records may represent different individuals sharing the same name. All data is compiled from publicly available government and commercial sources.
How accurate is the information shown for William Siembieda?
The 18 records displayed for William Siembieda are aggregated from government agencies, county offices, and official registries. While we source from authoritative databases, records can contain outdated information or belong to a different person with the same name. We recommend verifying important details through the original issuing agency before making decisions based on this data.
Can William Siembieda remove this information?
Yes, any individual has the right to request removal of their personal information. Submit a free removal request through our opt-out page. Under the CCPA and similar state privacy laws, you can request deletion of your data. Removal is completed within 48 hours. You do not need to create an account.
Can I use this data for background checks or screening?
No. OpenDataUSA is not a Consumer Reporting Agency under the FCRA. These records may not be used for employment screening, tenant evaluation, credit decisions, insurance underwriting, or any other FCRA-regulated purpose. For official background checks, use an FCRA-compliant service.