The $321B Nuclear Recompete Wall: Every National Lab and Nuclear Security Site Coming Up for Rebid

Nuclear energy is one of the few federal markets where a single contract can exceed $50 billion. It is also one of the most incumbent-stable — which is exactly why the rare recompete windows matter so much.

How the government actually buys nuclear

When people search for “US government nuclear energy,” they are usually circling one buyer: the Department of Energy (DOE) and its semi-autonomous National Nuclear Security Administration (NNSA). DOE does not run nuclear programs with a conventional civil-service workforce — it uses the management-and-operating (M&O) contractmodel, awarding multi-year, multi-billion-dollar contracts to consortia that run entire national laboratories and nuclear-security sites on the government’s behalf. That structure is why nuclear contracts are so large, so long, and so rarely open.

The nuclear enterprise breaks into four contract families, each with its own NAICS pattern:

• National-laboratory M&O(NAICS 561210 / 541710) — running the labs themselves (Sandia, Los Alamos, PNNL, SLAC, Argonne).
• Nuclear-weapons complex(NNSA sites) — Y-12, Pantex, the Nevada National Security Site, Savannah River tritium ops.
• Environmental cleanup & waste(NAICS 562910 / 562211) — Hanford, Savannah River, West Valley decommissioning.
• Advanced fuel & fusion— HALEU (high-assay low-enriched uranium), enriched-uranium conversion, and fusion research (Princeton Plasma Physics).

The $320.92B DOE recompete wall

SCOUT’s recompete engine scores every DOE contract by period-of-performance end date. Inside a 24-month window, 38 contracts worth an estimated $320.92 billionreach a current PoP end — effectively 100% concentrated at DOE, with a small DoD fuel-logistics tail. All 38 sit in the $100M-and-up band; most are measured in the tens of billions. This is not a market you enter cold, but it is a market where the timing of the rare openings is worth everything.

The largest nuclear contracts coming up for re-bid

The near-term cluster is striking: four sites worth roughly $96 billion — Savannah River, Los Alamos, Argonne, and ORISE — all reach a current PoP end on Sep 30, 2026. Even accounting for options and extensions, that is an extraordinary concentration of nuclear M&O decision-making inside a single fiscal-year boundary. For the consortia and their subcontractors, the capture and re-teaming work for these is happening now.

Advanced fuel and fusion: the smaller, more contestable tier

The mega M&O contracts are effectively locked to the incumbent consortia. The more accessible nuclear work sits in the sub-$1B tier — advanced fuel, uranium conversion, technical support, and fusion:

The HALEU line is the one to watchfor the “reliable US nuclear energy” theme. High-assay low-enriched uranium is the fuel the next generation of advanced and small modular reactors depends on, and the government is actively funding domestic production to reduce reliance on foreign enrichment. American Centrifuge Operating’s $317M cascade demo runs through mid-2028 — a leading indicator of where the civilian-nuclear supply chain is being rebuilt.

What this means for firms in the nuclear supply chain

1. You compete for the consortium seat, not the prime.No single company “wins Sandia.” The M&O prime is a consortium; the realistic path is a named role on a bidding team or a major subcontract for security, IT, engineering, or facilities.
2. The Sep 2026 cluster is the immediate event. Savannah River, Los Alamos, Argonne, and ORISE all hit PoP end the same day. Teaming decisions for these are being made now, not after a solicitation posts.
3. Cleanup and fuel are where new entrants have room. Environmental remediation (Hanford, West Valley) and advanced-fuel work (HALEU, conversion) award at contestable sizes and reward specialized past performance more than incumbency.
4. Track the PoP clock, not the news cycle. Nuclear contracts open rarely and briefly. Missing the window by a quarter can mean missing it by a decade.

That is the workflow SCOUT automates: recompete scoring off PoP end dates, incumbent and obligation history on every contract, and the ability to segment the mega M&O locks from the contestable fuel and cleanup tier — so a specialized firm can see the nuclear window before it closes.

Fair disclosure

This report is produced by PrimeRFP SCOUT using SCOUT’s live federal intelligence. We believe the data is accurate as of July 6, 2026, but we are not the primary source — USASpending.gov is. Estimated values reflect obligated or ceiling amounts on the current contract and, for long-running M&O contracts, can represent cumulative multi-year totals; successor contract values may differ substantially. Recompete timelines are based on period-of-performance end dates; DOE M&O contracts are frequently extended, and several contracts on this wall will be bridged or re-optioned rather than openly recompeted on the dates shown.

Methodology

The recompete wall comes from SCOUT’s recompete engine filtered to agency = Department of Energy, a 24-month forward window, and a $100M minimum value, sorted by value. Urgency is measured from pop_end_current— the current period-of-performance end date — not the fully-optioned potential end date. Site and program names are derived from the contract descriptions and incumbent records; NAICS families (561210, 541710, 562910, 562211, 221113, 325180) are reported as recorded in USASpending. All value figures are USASpending-sourced.