Both Thomas Scientific and Day Associates have worked hard to address as many questions and concerns you, our customers, may have about this integration. Below are some of the many things that we have addressed..

When I call Day Associates, will it now be answered by Thomas Scientific Customer Service?

• Yes! Thomas Scientific has merged the customer service teams from both companies in order to give our customers a higher level of service and quicker response times to meet their needs.

Do I still have a Day Associates Account number?

• Your customer account number IS changing.   Please contact customer service or your sales representative to obtain your new account number.

What about my open order that I have with Day Associates?

• Day Associates completed as many open orders and open POs as possible, prior to integration. Any remaining open orders or open POs were merged into Thomas Scientific’s order entry system to include any pertinent information to ensure that all orders are delivered in a timely manner.

How will my blanket orders be handled going forward?

• Please contact our customer service departments by calling: (833) 544-7447 or send us an email at [email protected] We look forward to helping you!

Can I continue to use my internal part number to order my products?

• You will need to use the official Day or Thomas part numbers to order all products. Please reach out to your sales representative or customer service for assistance.

Can I use the same fax number to place orders? Is Thomas Scientific receiving them now?

• Thomas Scientific is re-directing all faxes sent to Day Associates to the appropriate Thomas Scientific fax number.

Is Thomas Scientific receiving my orders that I emailed to Day Associates?

• Thomas Scientific is rerouting all orders emailed to Day Associates to the enhanced Thomas/Day customer service team.

Will I have the same sales representative?

• We know the sales representative relationship is important to our customers. There have been very little adjustments made on accounts. Please reach out to the Sales Representative you know and trust today, and they will be happy to assist you.

How does the purchase of Day Associates by Thomas Scientific impact me?

• The purchase of Day Associates opens up a world of additional products and suppliers to all Day Associates customers.  Not only will you have access to the high quality products you bought before, you now have access and the ability to purchase the hundreds of thousands of items available in the Thomas Scientific distribution network.

Will this acquisition have an impact on delivery of my product?

• Yes, and in a Good way! Thomas Scientific will now have multiple locations that we can ship from with the purchase of Day Associates.  Thomas Scientific continues to analyze the customer base and is moving any necessary inventory in order to bring faster delivery to our customers.

What will it say in my invoices?

• Good question! As we take final steps to complete this full integration, Invoices will be shifting from Day Associates to Thomas Scientific. When will this happen? Although we can't provide you with an exact date at this time, we will be updating these details in the days to come. Only after complete integration will any updating on invoices and/or other official forms take place. Stay tuned for more details.

Which website should I use to get product information?

• The Day Associate website is being shut down. Please refer to the Thomas Scientific website: www.thomassci.com

How do I set up a new web profile on ThomasSci.Com?

• This can be completed in 5 steps. You will need your Thomas account number prior to setting up your online profile. Please contact your sales representative or Thomas Customer Service to obtain your new account number.
• • Step 1: Visit the Website
  • • Go to www.thomassci.com/register
  • Step 2: Create Login Credentials
  • • Under NEW CUSTOMERS, enter your First Name, Last Name, Email, and Password.
    • Select I am purchasing on behalf of an organization
    • Check the box agreeing to the Terms & Conditions and Privacy Policy
    • Click the CREATE PROFILE button
    • 
  • Step 3: Enter Company Information
  • • Fill in the required company details
    • Important: Be sure to include your account number
    • 
  • Step 4: Complete Registration
  • • Submit your infomation
    • You will now be logged into your new profile on ThomasSci.com
    • 
  • Step 5: Account Linking Timeline
  • • Allow up to 24 hours for your web profile to link with your business account
    • If your profile is not linked after 24 hours, contact: [email protected]

My question wasn't really answered here. What should I do?

• Both Day Associates and Thomas Scientific are ready to assist you! If your specific question was not answered here to your satisfaction, please contact our customer service departments by calling: (833) 544-7447 or send us an email at [email protected] We look forward to helping you!

Both Thomas Scientific and Day Associates are working hard to address as many questions and concerns you, our customers, may have about this integration. Below are some of the many things we will be addressing in the days to come, so please check back here often for the most up-to-date information.

We have put together a list of your most popular products from Day Associates. For quick access, HERE.

Why is the part number for my product different?  Is it the same product that I have ordered in the past??

• The teams at Thomas Scientific and Day Associates worked extensively to cross reference all products carried by both organizations, as well as to identify any items that would be considered new to the Thomas Scientific product portfolio. For these items, when searching by the Day part number you may be most familiar with on our website, we have added a notation to guide you to the Updated Part Number for the item in which you searched for. This reference is identified by a Red “Also know as”  notation on the product. Please reach out to your Sales Representative if you need any assistance finding your popular item.

Will I still have access to all of the products that I have bought in the past?

• Yes! You will be able to purchase all of the same items that you have been buying from Day Associates, plus many, many more! Thomas Scientific carries over 300,000 products covering Supplies & Consumables, Equipment & Instruments, Chemicals, Safety, Furniture, Life Science, and more. Our portfolio of products is constantly growing. Once you see how many items are available to you, there will be no reason to shop anywhere else!

Both Thomas Scientific and Day Associates are working hard to address as many questions and concerns you, our customers, may have about this integration. Below are some of the many things we will be addressing in the days to come, so please check back here often for the most up-to-date information.?

Will Thomas Scientific accept credit card payments?

• Yes! If you placed orders in the past using a credit card with Day Associates, you will be able to do so with Thomas Scientific.

Both Thomas Scientific and Day Associates are working hard to address as many questions and concerns you, our customers, may have about this integration. Below are some of the many things we will be addressing in the days to come, so please check back here often for the most up-to-date information.?

When did Thomas Scientific acquire Day Associates?

• Thomas Scientific, LLC acquired Day Associates on August 2, 2023.

What is the structure of the Company now??

• Day Associates no longer has an Employer Identification Number (Tax ID number) of their own. They have been tucked in under the Thomas Scientific Holdings, LLC EIN number which is 61-1853692.
• Click HERE to view and download a Thomas Scientific, Holdings LLC W-9 form
• Click HERE to view and download a Thomas Scientific Information Sheet that contains key information about our Company

Who do I pay?

• Orders shipped by prior to 06/1/2026 were invoiced by Day Associates on the invoice format you are used to seeing. For those invoices, you should pay Day Associates in the manner and method you have been paying them.
• Orders shipped after 06/1/2026 were or will be invoiced on a Thomas Scientific invoice. For those invoices, you should make your payments to:
  
  Checks: Thomas Scientific, LLC
  Physical Address:
  Thomas Scientific
  Accounts Receivable Department
  1654 High Hill Road
  Swedesboro, New Jersey 08085
  
  Remittance Address:
  Thomas Scientific Lockbox
  PO Box 536750
  Pittsburgh, PA 15253-5909
  
  ACH Payments or Wire Transfers:
  Citizens Bank
  1 Citizens Drive
  Riverside, RI 02915
  
  Bank Account: 6101724151
  ABA / Routing #: 036076150
  Swift Code: CTZIUS33
  
  Credit Card
  At time of order or Call the AR Team at:
      Day Associates: (978) 957-4519
      Thomas: (856) 467-2000 press 5 or email [email protected]

What if I have questions about my invoice or status of my payment?

• There are multiple ways to reach the Accounts Receivable Department if you have questions:
  
  Email:  [email protected]
  Phone: Day Associates: (978) 957-4519
               Thomas: (800) 345-2100 x4677  or  (856) 467-2000 x4677

Both Thomas Scientific and Day Associates are working hard to address as many questions and concerns you, our Vendors and Suppliers, may have about this integration. Below are some of the many things we will be addressing in the days to come, so please check back here often for the most up-to-date information.

When did Thomas Scientific acquire Day Associates??

• Thomas Scientific, LLC acquired Day Associates on August 2, 2023.

What is the structure of the Company now?

• Day Associates no longer has an Employer Identification Number (Tax ID number) of their own. They have been tucked in under the Thomas Scientific Holdings, LLC EIN number which is 61-1853692.
• Click HERE to view and download a Thomas Scientific, Holdings LLC W-9 form
• Click HERE to view and download a Thomas Scientific Information Sheet that contains key information about our Company 

Who will pay my invoices?

• Receipts from resale product Suppliers/Vendors that arrived at one of our Distribution Centers prior  to 06/01/2026 were received into Day Associates’ system and will be paid by Day Associates in the same manner they have historically paid your invoices (check, ACH, p-card).
• Receipts from resale product Suppliers/Vendors that arrived at one of our Distribution Centers after 06/01/2026 were (or will be) received into Thomas’ system and will be paid by Thomas via check or p-card. Checks will have the Thomas Scientific name on them. P-card payments will reference Thomas Scientific.
• Invoices received from expense vendors prior to 06/01/2026 were or will be paid by Day Associates in the same manner you have been paid in the past.
• Invoices received from expense vendors after 06/01/2026were or will be paid by Thomas Scientific via check or p-card. Checks will have the Thomas Scientific name on them. P-card payments will reference Thomas Scientific.

Where should I send my invoices going forward?

• You can immediately begin sending your invoices to the following address, fax or email address:
  
  Address:
  Thomas Scientific
  Accounts Payable Department
  1654 High Hill Road
  Swedesboro, New Jersey 08085
  
  Email: [email protected]  for po related/supplier trade invoices OR [email protected] for non-po/expense invoices.
  
  Fax: (856) 467-8150