Walter Klein
NY Doing business as Alpha Sum Business Machines
- UEI
- NNVNBNQJJBR5
- CAGE
- 1FUN5
- Primary NAICS
- 334111 Electronic Computer Manufacturing
- SAM.gov registration
- Active through
Company facts
- Self-certified in SAM.gov
- Entity structure
- Sole Proprietorship
- NAICS codes registered in SAM.gov
-
- 334111 Electronic Computer Manufacturing Primary
- 322291 Sanitary Paper Product Manufacturing
- 325992 Photographic Film, Paper, Plate, Chemical, and Copy Toner Manufacturing
- 333310 Commercial and Service Industry Machinery Manufacturing
- 334112 Computer Storage Device Manufacturing
- 334118 Computer Terminal and Other Computer Peripheral Equipment Manufacturing
- 334210 Telephone Apparatus Manufacturing
- 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
Show all
- 334290 Other Communications Equipment Manufacturing
- 334310 Audio and Video Equipment Manufacturing
- 334413 Semiconductor and Related Device Manufacturing
- 334515 Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals
- 335220 Major Household Appliance Manufacturing
- 335311 Power, Distribution, and Specialty Transformer Manufacturing
- 335313 Switchgear and Switchboard Apparatus Manufacturing
- 335921 Fiber Optic Cable Manufacturing
- 335929 Other Communication and Energy Wire Manufacturing
- 335931 Current-Carrying Wiring Device Manufacturing
- 335932 Noncurrent-Carrying Wiring Device Manufacturing
- 339940 Office Supplies (except Paper) Manufacturing
- 423210 Furniture Merchant Wholesalers
- 423410 Photographic Equipment and Supplies Merchant Wholesalers
- 423420 Office Equipment Merchant Wholesalers
- 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers
- 423440 Other Commercial Equipment Merchant Wholesalers
- 423610 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers
- 423620 Household Appliances, Electric Housewares, and Consumer Electronics Merchant Wholesalers
- 423690 Other Electronic Parts and Equipment Merchant Wholesalers
- 423830 Industrial Machinery and Equipment Merchant Wholesalers
- 424120 Stationery and Office Supplies Merchant Wholesalers
- 424130 Industrial and Personal Service Paper Merchant Wholesalers
- 517121 Telecommunications Resellers
- 532420 Office Machinery and Equipment Rental and Leasing
- 541512 Computer Systems Design Services
- 541519 Other Computer Related Services
- 541990 All Other Professional, Scientific, and Technical Services
- 811210 Electronic and Precision Equipment Repair and Maintenance
- SAM.gov registration date
- Physical address
- 33-27 91st St #6B, Jackson Heights, NY 11372, USA
- Website
- alphasum.com
- Founded
- 1983
- Employees
- 1-10
- Estimated annual revenue
- $1M-$10M
- Industry
-
- Information Technology
- Technology Hardware & Equipment
- Technology Hardware, Storage & Peripherals
- Computer Hardware
- SIC code
- 35 Industrial Machinery & Equipment
- Profiles
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Recent federal awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| FY26 enrd network printer cartridges and supplies | Justice Management Division | $10,135 | |
| Hard drive purchase for the ncfl | Office of the Secretary | $41,548 | |
| Deodorant,OS he pures,12 | Federal Acquisition Service | $154 | |
| Procurement of CCTV cameras for NOAA ship bell m. Shimada in newport, or. | National Oceanic and Atmospheric Administration | $47,334 | |
| Black box EVNSL0618A1000 CAT6 400-MHZ solid ethernet bulk cable - shielded f/UTP, CMP plenum, black, 1000-FT. 304.8-m… | Federal Acquisition Service | $725 |
About Walter Klein
Walter Klein, operating as Alpha Sum Business Machines, is a small for-profit sole proprietorship based in Jackson Heights, New York that has maintained an active federal vendor status since its registration in the System for Award Management in March 2002. The company specializes in providing standardized commercial off-the-shelf (COTS) office equipment, technology products, and workplace supplies to federal agencies through the General Services Administration (GSA) Multiple Award Schedule (MAS) contract vehicle. Alpha Sum Business Machines has established a consistent presence as a federal supplier, delivering routine procurement solutions to numerous federal agencies across both defense and civilian sectors.
The company's contract portfolio demonstrates a diverse range of products and services tailored to federal agency needs. Alpha Sum Business Machines has supplied office furniture and ergonomic accessories including gel mouse pads with wrist rests, step stools (both caster-mounted and rolling variants), and keyboard trays to agencies such as the Federal Acquisition Service, Naval Sea Systems Command, Coast Guard, and Federal Emergency Management Agency. Technology-focused procurements have included computer peripherals such as KVM switches (including NIAP 4.0 certified models with security features for classified networks), 27-inch monitor privacy screens, virtual reality headsets, AC power supply equipment, storage devices, barcode scanners, and wired keyboards. The company has also fulfilled specialized requests for items such as telecommunications connectors (Sumitomo Lynx splice-on connectors), wide-format printer ink, office furnishings (folding tables and picture frames), and miscellaneous supplies (thermal labels, footrests, and oscillating fans). Recent high-value awards include an $84,268.80 delivery order from the Air Force Sustainment Center for AC power supply equipment and a $46,458.64 small business set-aside award from the Bureau of Naval Personnel for OPNAV N1 conference room equipment. The majority of Alpha Sum Business Machines' federal work has been awarded without small business set-asides, though the company has received two contracts designated as Total Small Business set-asides. All documented awards have been structured as firm fixed-price or fixed-price with economic price adjustment delivery orders and purchase orders, with the company serving exclusively as a prime contractor across defense agencies (Navy, Coast Guard, Air Force), civilian agencies (FEMA, Department of Interior), and the Federal Acquisition Service.
Contract vehicles
SBA capabilities narrative
Sales, service, supply and support of office automation equipment and systems covering the full range of over 200,000 products.
Quick answers
What is Walter Klein's UEI?
Walter Klein's Unique Entity ID (UEI) in SAM.gov is NNVNBNQJJBR5.
What is Walter Klein's CAGE code?
Walter Klein's CAGE code is 1FUN5.
What is Walter Klein's primary NAICS code?
Walter Klein's primary NAICS code is 334111 (Electronic Computer Manufacturing).
Where is Walter Klein located?
Walter Klein's physical address in SAM.gov is 33-27 91st St #6B, Jackson Heights, NY 11372, USA.
Is Walter Klein registered in SAM.gov?
Yes. Walter Klein's SAM.gov registration is active through September 3, 2027.
Which contract vehicles does Walter Klein hold?
Walter Klein holds a place on 3 federal contract vehicles, including IT-70 and MAS.
What is Walter Klein's most recent federal award?
Walter Klein's most recent federal contract award is FY26 enrd network printer cartridges and supplies (15JPSS26F00001610), from Justice Management Division, on September 28, 2026.
On GovTribe
See Walter Klein's full federal record
- Federal contract awards
- IDV awards
- Contract vehicles
- Funding analysis by agency, NAICS and set-aside
- Similar vendors