Marcus Siu
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Marcus Siu Email & Phone Number

Location: San Pablo, California, United States 6 work roles 1 school
1 work email found @hmscs.com 6 phones found area 925 and 510 LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 6 phones

Work email m****@hmscs.com
Direct phone (925) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Data Analyst
Location
San Pablo, California, United States
Company size

Who is Marcus Siu? Overview

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Quick answer

Marcus Siu is listed as Data Analyst at HMS Cornerstone Solutions, a with 8 employees, based in San Pablo, California, United States. AeroLeads shows a work email signal at hmscs.com, phone signal with area code 925, 510, and a matched LinkedIn profile for Marcus Siu.

Marcus Siu previously worked as Media Editor/Photojournalist/Producer at Mls Media Entertainment and Staff Accountant at Sensys Networks, Inc.. Marcus Siu holds Bachelor Of Science, Business Administration; An Emphasis In Accounting from San Francisco State University.

Company email context

Email format at HMS Cornerstone Solutions

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{first}@hmscs.com
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AeroLeads found 1 current-domain work email signal for Marcus Siu. Compare company email patterns before reaching out.

Profile bio

About Marcus Siu

Accountants Payable Specialist with over 20 years of A/P, A/R and G/L experience, including 15 years working in a high tech manufacturing environment for start-up companies. Extremely proficient in implementing full-cycle and daily A/P work flow processes to improve efficiency and strengthen controls, ensuring timely and accurate payment of invoices to suppliers. Diligent, reliable, and extraordinarily detail oriented. Specialties: Accounts Payable, General Ledger, Fixed Assets, 1099's.

Listed skills include General Ledger, Payroll, Auditing, Accounts Payable, and 17 others.

Current workplace

Marcus Siu's current company

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HMS Cornerstone Solutions
Hms Cornerstone Solutions
Data Analyst
port charlotte, florida, united states
Website
Employees
8
AeroLeads page
6 roles

Marcus Siu work experience

A career timeline built from the work history available for this profile.

Media Editor/Photojournalist/Producer

Mls Media Entertainment

San Francisco Bay Area

Photographed various trade shows for publications and media of Industry Trade Shows and Conferences, such as CES – Consumer Electronics Show, Las Vegas; IDF – Intel Developer’s Forum, MacWorld, Oracle Open World, Nvidia GTC Conference, Samsung Developer's Conference, Inter Solar Conference and Semicon West. Also photographer and videographer for Roadway Media, as well as a contributing editor, photographer, and videographer for Bright Blue Innovation International.Authored “Searching for Chopin”, covering the 200th birthday of Chopin at the Chopin International Piano Competition, in Warsaw, Poland published in Polonia SF.Produced short film, “When Sally Met Rascal”, starring Academy Award Nominee, Sally Kirkland and “Rascal, the World’s Ugliest Dog”, which played at U.S. Film Festivals. Also produced several short films directed by Ray Arthur Wang, such as "Black and White" and "Surprise", in which he was Executive Producer.Film review blogger covering and promoting the Bay Area Film Festival scene, such as San Jose’s Cinequest and the SF International Film Festival for www.mlsentertainment.wordpress.com.

Staff Accountant

Berkeley, Ca

Handled both A/P vendor and A/R customer inquiries, responding tactfully and quickly, researching any discrepancies, resolving issues for a rapidly growing Startup company, which was ranked the 80th fastest growing company in 2010 in the U.S., according to Inc Magazine.Oversaw and recorded all bank deposit checks, ACH’s, wires, and credit card payments on a daily basis, which assisted in predicting cash flow forecasts for the VP of Finance. Reinforced A/P approval process for vendor invoices, ensuring all documents are properly signed and authorized within company guidelines and in compliance with company policies, ensuring expenses are properly allocated by department.Strengthened and prioritized A/R collections, aggressively notifying customers with outstanding past due balances, while establishing and keeping good customer relations, keeping amounts on the A/R aging to a minimum.Performed credit checks on potential customers, analyzing and processing customer credit applications, reducing the risk for any future bad debt balances and potential write-offs.Administered sales order audits, verifying customer purchase orders agree to the company issued sales orders, insuring the correct product is shipped out and that all invoices are issued error free.Reconciled and maintained various prepaid accounts and amortization schedules, fixed asset and depreciation schedules, as well as accruals, generating monthly journal entries, including uploads from CSV vendor files, when available.

Oct 2011 - Apr 2013

Accounts Payable Supervisor

Moog, Inc. (Formerly Berkeley Process Control)

Interacted closely with personnel, vendors, and auditors, quickly responding to all A/P related issues, resolving invoice and credit discrepancies in a timely manner, attaching proper supporting documentation, when needed, assuring excellent customer service.Implemented proactive policy to guarantee suppliers invoices inputted within 24 hours after receipt to improve traceability and reliability of A/P Aging Reports and cash flow forecasts for the controller, ensuring all incoming invoices are accurately processed in a timely manner, especially those offering discount terms. Recruited, hired, and trained up to four direct reports; delivered performance reviews and recognized staff contributions. Facilitated weekly departmental meetings to motivate and encourage open communication, collaboration for resolving A/P issues, and ensure quality teamwork.Assigned, audited, and posted journal vouchers, reviewed A/P Accountants work to ensure quality processing, and verified G/L account codes compliance with GAAP and departmental standards. Instituted Travel Expense Report procedures that required proper travel receipts and documentation to prevent any misappropriated expenses and overpayment by the company.Designed a new fixed asset tracking system to simplify preparation of property tax filings with Contra Costa County and ensured compliance within tax deadlines. Initiated and developed discrepancy databases for Purchasing/Receiving Department to eliminate repetitive inquiries between departments, minimizing purchase price variances, while keeping inventory counts accurate. Maintained 1099 supplier data base for Federal and State reporting.

Feb 1994 - Sep 2009

Fixed Asset/Wip Accountant

Chevron Usa

Controlled and monitored WIP project expenditures and transactions involving the addition, transfer, or abandonment of fixed assets accounts valued at over $200 million.Researched and analyzed all retirements from sales of surplus equipment, resulting in significant tax benefits. Initiated, designed, and implemented Microsoft Excel macro program, saving up to 35% of time associated with closing projects to proper investment accounts. Provided timely, accurate reporting of expenditure and appropriation data to assist in monitoring expenses.Received awards for four consecutive years for improving work processes and reducing costs, participating actively in Chevron's Quality Improvement program.Prepared and verified $500,000 payroll records accurately.

Apr 1991 - Nov 1993

Accounts Payable Accountant

Chevron Corporation

Instrumental in the successful pilot implementation and subsequent enhancements of the FILENET imaging system which automated the entire A/P operation.Efficiently responded to numerous difficult inquiries from operating personnel, vendors, auditors and other account personnel, demonstrating excellent customer service skills.Processed and coded for payment up to 1,200 vendor invoices and related documents totaling over $1 million monthly, with speed and accuracy of processing recognized as one of the best in department.Achieved and maintained 100% accuracy rate in reviewing invoices for correct sales and use tax applications, expenditure and payment authorization, discount terms, and G/L account codes.

Nov 1987 - Apr 1991
Team & coworkers

Colleagues at HMS Cornerstone Solutions

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1 education record

Marcus Siu education

FAQ

Frequently asked questions about Marcus Siu

Quick answers generated from the profile data available on this page.

What company does Marcus Siu work for?

Marcus Siu works for HMS Cornerstone Solutions.

What is Marcus Siu's role at HMS Cornerstone Solutions?

Marcus Siu is listed as Data Analyst at HMS Cornerstone Solutions.

What is Marcus Siu's email address?

AeroLeads has found 1 work email signal at @hmscs.com for Marcus Siu at HMS Cornerstone Solutions.

What is Marcus Siu's phone number?

AeroLeads has found 6 phone signal(s) with area code 925, 510 for Marcus Siu at HMS Cornerstone Solutions.

Where is Marcus Siu based?

Marcus Siu is based in San Pablo, California, United States while working with HMS Cornerstone Solutions.

What companies has Marcus Siu worked for?

Marcus Siu has worked for Hms Cornerstone Solutions, Mls Media Entertainment, Sensys Networks, Inc., Moog, Inc. (Formerly Berkeley Process Control), and Chevron Usa.

Who are Marcus Siu's colleagues at HMS Cornerstone Solutions?

Marcus Siu's colleagues at HMS Cornerstone Solutions include Barry Wise, Russel Crowe, Kate Alger, and John H..

How can I contact Marcus Siu?

You can use AeroLeads to view verified contact signals for Marcus Siu at HMS Cornerstone Solutions, including work email, phone, and LinkedIn data when available.

What schools did Marcus Siu attend?

Marcus Siu holds Bachelor Of Science, Business Administration; An Emphasis In Accounting from San Francisco State University.

What skills is Marcus Siu known for?

Marcus Siu is listed with skills including General Ledger, Payroll, Auditing, Accounts Payable, Internal Controls, Variance Analysis, Invoicing, and Customer Service.

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