Sisters One, Inc.

Sisters One, Inc., doing business as AD Diwan, is a minority-owned, women-owned small business based in Herndon, Virginia, that supplies Islamic religious and cultural items to the Defense Department as a prime contractor under Total Small Business set-asides. The company operates exclusively on a single-award indefinite delivery contract with the Defense Logistics Agency (DLA) Troop Support Clothing and Textiles division, valued at $1.82 million and running through December 28, 2026.

Sisters One's entire federal footprint — 3,725 delivery orders across 100% of awards — flows through a single parent IDV (SPE1C122D1523, also cited in source materials as contract 4610084857) awarded December 29, 2021. The DLA Clothing and Textiles division is the sole customer of consequence, accounting for $8.7 million in combined potential value across 3,725 awards. A single outlier Air Force award for $44 thousand represents less than 1% of the portfolio. The company has delivered more than $1.7 million against the $1.82 million ceiling, with cumulative obligations at $1.8 million (20% obligated). Recent delivery orders range from $11 to $4,245, with most falling between $100 and $700.

Sisters One's capability centers on procurement of faith-based religious goods for military personnel accommodation. The product catalog includes prayer rugs, Islamic religious books (titles such as "Riyadh Us-Salah," "40 Hadith," "Islam in Focus," and "The Muslim Marriage"), kufis and kimars (men's and women's Islamic religious headwear), dhikr prayer beads in black and white variants, kiblah compasses, prayer clocks, prayer oils (fragrances including sandalwood and Egyptian musk), miswaks (traditional Islamic tooth-cleaning sticks), and dried dates. All work is performed at the company's Herndon headquarters. The source does not describe secondary capabilities or subcontractor relationships.

The vendor competes under Total Small Business set-asides, though recent awards in November 2025 and later show mixed "No Set-Aside Used" designations alongside Total Small Business awards, suggesting the parent IDV may permit both set-aside and open competition. Award volume has been volatile — 472 orders in 2022, declining to 321 in 2023, rising to 568 in 2024, then dropping to 388 in 2025 and 112 year-to-date in 2026. All awards in the source represent delivery orders against the single parent IDV; no sub-awards or secondary parent vehicles are present in the portfolio. The IDV itself will reach ultimate completion on December 28, 2026, creating a hard recompete cliff within the next nine months.