Zeigler Bros Inc.

Zeigler Bros Inc., operating as Zeigler Bros., Inc. Division, is a for-profit manufacturer of specialized animal feeds and nutritional products headquartered in Gardners, Pennsylvania, that supplies federal agencies exclusively as a prime contractor (100% of recent awards) across aquaculture, wildlife management, and biomedical research programs. The vendor competes predominantly full-and-open, though it holds recurring small-business set-asides on specific indefinite delivery vehicles.

The vendor's customer concentration is heavily skewed toward civilian research and conservation agencies. The Department of the Interior Fish and Wildlife Service (consolidated across regional offices) accounts for 151 awards and dominates the award-count ranking, but the dollar-value picture is dramatically different: a single $75 million blanket purchase agreement with FWS Region 9 Headquarters for national fish hatchery feed supply through October 31, 2032, anchors 94% of combined potential value. The Department of Health and Human Services National Institutes of Health National Institute of Environmental Health Sciences (NIEHS) is the second-largest customer by dollar value, holding a $1.7 million indefinite delivery contract for NIH-31 rodent feed and research support services through May 31, 2027 (25 awards). The FDA holds an $350,000 single-award indefinite delivery contract for irradiated rodent feed through December 31, 2030, and the USDA Agricultural Research Service holds a $400,000 small-business set-aside indefinite delivery contract for fish feed through September 6, 2028. These four vehicles account for nearly all of the vendor's active prime footprint.

Recent task-order activity shows steady state. The vendor has placed 42 delivery orders under the NIEHS contract (valued at $3 thousand combined), 24 calls under the FWS $75 million BPA (valued at $1.2 million combined), 22 orders under an unspecified HHSN BPA (valued at $20 thousand combined), and 21 delivery orders against the NIH-31 rodent feed IDIQ (valued at $753 thousand combined). Individual task orders range from $8,712 to $160,300. Activity was relatively consistent from 2022 through 2025 (10–16 awards per year) but dropped to 4 awards in 2026 to date. The vendor faces modest recompete exposure: 7 awards with ultimate completion dates in the next twenty-four months carry combined potential value of $363 thousand, predominantly routine feed deliveries to FWS regional hatcheries. Two indefinite delivery contracts—the $75 million FWS BPA and the $1.7 million NIEHS rodent-feed contract—constitute the recompete-critical vehicles.

The vendor's capability portfolio is tightly focused. Primary work consists of bulk fish feed formulations for national fish hatcheries (Dale Hollow, Greers Ferry, Kentucky Wolf Creek, Chattahoochee Forest, and White Sulphur Springs facilities), NIH-31 rodent feed for laboratory research, and irradiated rodent feed with assay analysis for FDA biomedical testing. NAICS classification centers on 541512 (Other Animal Food Manufacturing, 242 awards) and PSC 7310 (Forage and Feed, 324 awards). The vendor manufactures and performs all work at its Gardners, Pennsylvania facility; place of performance across all named contracts specifies that location. Representative awards include the $75 million FWS BPA renewal on November 1, 2022 (extending through October 31, 2032, with 23 subsequent regional task orders averaging $50,000–$60,000 per call); a $1.7 million NIEHS indefinite delivery contract on June 1, 2022, for NIH-31 rodent feed through May 31, 2027 (21 subsequent delivery orders averaging $31,000–$34,000 per order); a $400,000 USDA ARS small-business set-aside indefinite delivery contract on September 7, 2023, for fish feed through September 6, 2028; and a $350,000 FDA small-business set-aside indefinite delivery contract on December 31, 2025, for irradiated rodent feed through December 31, 2030.

The vendor reports no subcontract relationships in the source data. Federal contracting history with the vendor dates to at least 2003, based on repeated references in award summaries to the vendor as "registered since 2003," indicating a 20+ year federal supplier tenure. The vendor operates with neither minority ownership, women ownership, nor veteran ownership designations in the source; the small-business set-asides that appear are designated Total Small Business rather than any 8(a), HUBZone, SDVOSB, or WOSB category.

ANIMAL FEED: FINFISH, SHRIMP,LARVAE: LABORATORY ANIMAL DIETS FOR RATS, MICE, RABBITS, ETC. PET FOODS, ETC. NUTRITIONAL CONSULTATION, PRODUCT DEVELOPMENT, MANUFACTURING FRANCHISES AVAILABLE, FEED MILL ENGINEERING AND CONSTRUCTION