NIH $3 Billion Construction MACC: Contractor Readiness and Bid Strategy

The NIH construction MACC is a $3 billion multiple-award contracting opportunity for construction, renovation, repair, and maintenance at National Institutes of Health facilities. Released October 28, 2026, solicitation 75N99027R00002 on SAM.gov calls for proposals by December 15, 2026, at 2:00 PM Eastern Time. For qualified construction contractors, the central issue is not simply the program’s size but whether they can pass the technical eligibility requirements and demonstrate sufficiently strong past performance.

Key Contract Facts

The official NIH solicitation and subsequent amendments control the requirements.

What the NIH MACC Offers

The eight-year indefinite-delivery/indefinite-quantity (IDIQ) program will support the NIH Office of Research Facilities. Its anticipated scope includes new construction, renovations, building repairs, mechanical and electrical systems, HVAC, plumbing, structural work, and design-build projects. Individual task orders will define the work and delivery requirements.

NIH anticipates approximately 20 initial awards, including unrestricted awards and reserved opportunities for HUBZone, service-disabled veteran-owned, women-owned, and 8(a) small businesses. The $3 billion amount is a shared contract ceiling, not guaranteed revenue for a particular awardee. A place on the contract creates an opportunity to pursue future task orders—not an assurance of receiving them.

NIH facilities are not necessarily comparable to conventional commercial buildings. Depending on the task order, contractors may confront existing utility systems, occupied research or healthcare spaces, limited site logistics, and carefully sequenced construction. These are project-planning considerations rather than separate MACC qualification standards. A firm with strong new-building credentials should still examine whether its teams can manage interdisciplinary interfaces, work-area protection, subcontractor coordination, and changes without interrupting critical facility functions.

For contractors evaluating the NIH construction MACC, the commercial question is whether their operating model supports repeatable delivery across diverse institutional projects. A useful internal review links field leadership, scheduling controls, quality assurance, and specialty-trade capabilities to documented completed work—not broad statements about corporate capacity.

The Qualification Gates Matter Most

NIH evaluates technical acceptability before comparing past performance and price. This makes early bid/no-bid assessment essential: an unacceptable technical subfactor can end a proposal’s prospects regardless of its proposed price.

Category selection is a separate decision from basic technical eligibility. Eligible firms can indicate more than one applicable reserve on Attachment 7, but the RFP calls for only one proposal, and an offeror can receive only one MACC award. Contractors should confirm the eligibility and supporting evidence for every category selected. Large businesses pursuing unrestricted awards must also prepare the required HHS small-business subcontracting plan rather than treating utilization as an after-award administrative exercise.

Bonding and Safety

Unrestricted offerors must demonstrate at least $100 million in single-project bonding and $300 million in aggregate capacity; reserved small-business competitors face $3 million and $10 million thresholds, respectively. The solicitation also requires an acceptable Experience Modification Rating (EMR) of 1.0 or below, subject to its specified documentation procedures. Contractors should verify the surety and insurance evidence before investing in a proposal.

The surety evidence is not an informal statement of financial strength. Section L calls for a signed, dated surety letter on company letterhead, bearing the surety’s seal. The EMR requirement likewise concerns current, documented information, not a narrative promise to improve workplace safety. For joint ventures, each constituent member must furnish its current EMR. Where an NCCI or equivalent rating is not available, the solicitation describes an insurer-letter alternative with specific timing requirements.

For the NIH construction MACC, contractors should obtain and inspect those documents before writing the technical volume. An otherwise capable firm can create unnecessary award risk by discovering too late that a required letter is missing, improperly executed, or inconsistent with the category it selected.

Relevant Construction Experience

Four qualifying construction projects are required. Unrestricted offerors need projects valued at least $25 million each, with at least one valued at $50 million or more. For small-business competitors, the thresholds are $1 million each and at least one project of $5 million or more. The referenced projects must meet the RFP’s completion-date, facility-type, delivery-method, and contracting-role rules.

The required mix includes relevant facility experience and at least one renovation or repair project and one design-build project. The construction-experience gate does not permit a prime offeror to substitute a proposed subcontractor’s experience. Firms should build a compliance matrix for every reference rather than choose projects based solely on value or reputation.

The experience standard is more specific than the headline dollar thresholds. All four projects must meet the RFP’s recency and scope requirements, and together must show work in two different qualifying facility types, at least one renovation or repair, and at least one design-build effort. Qualifying facility types include biomedical research laboratories, healthcare facilities, hospitals, animal-care facilities, and predominantly utility projects. Work performed only as a subcontractor does not qualify for this technical subfactor.

For the NIH construction MACC, prepare a project-by-project evidence matrix that records final construction value, completion date, prime contracting role, facility type, delivery method, and relevant systems. An overarching IDIQ vehicle is not itself a qualifying project; the individual completed task order is the appropriate unit of analysis. The mandatory Attachment 1 data sheet should carry the required proof. Do not assume an impressive project will pass without every required element being plainly demonstrated.

How NIH Will Select Contractors

The source selection uses three factors: Technical, Past Performance, and Price. Technical is rated Acceptable/Unacceptable. Among acceptable proposals, Past Performance is significantly more important than Price in the best-value tradeoff.

That weighting favors contractors who can document successful performance on genuinely comparable projects, rather than merely making broad claims about construction capacity. References should clearly explain the firm’s role, building complexity, construction conditions, delivery results, and the strength of its client evaluations. A competitive price remains important, but an aggressive price does not remedy weak past-performance evidence.

The RFP includes a Building 4 air-handling-unit replacement seed project, with a disclosed construction magnitude of $500,000–$1 million. Its pricing documents deserve disciplined estimating and reconciliation because seed-project price is part of the initial evaluation.

Why Seed Pricing Affects Evaluation Order

The evaluation method contains an important competitive nuance. NIH uses proposed seed-project prices to order the initial evaluation within each category. In the stated sequence—HUBZone, SDVOSB, WOSB, 8(a), then unrestricted—the government begins technical review with the four lowest-priced proposals in the applicable category, extending review when necessary to identify technically acceptable offers. Some proposals may therefore never reach full technical or past-performance evaluation. Once proposals are evaluated and found technically acceptable, past performance is significantly more important than price in the best-value tradeoff.

For the NIH construction MACC, this means pricing should be competitive enough to warrant consideration but defensible enough to withstand price-reasonableness review. Neither a low figure that ignores the seed project’s actual construction requirements nor a premium unsupported by credible performance evidence is a sound strategy.

Past Performance Requires Separate Evidence

Volume 2 requires four to six recent, relevant contracts or task orders, supported by Attachment 2 information. Completed CPARS evaluations should be supplied where available; otherwise, the solicitation prescribes a customer-completed questionnaire process. A project listed under technical construction experience is not automatically considered under Past Performance: it must independently qualify and be submitted in the proper volume. Select references that substantiate execution quality, schedule control, responsiveness, and comparable complexity rather than repeating marketing language.

Where Contractors Should Focus Now

First, verify prime eligibility. Check bonding, EMR, all four project references, and socioeconomic status before allocating proposal resources. Confirm that the required evidence exists and satisfies the precise solicitation wording.

Second, choose the right pursuit route. Contractors that cannot qualify independently should consider whether a compliant joint-venture structure or a subcontracting position is more appropriate. Teaming arrangements must be assessed against the actual RFP requirements; a subcontractor’s credentials should not be presumed to cure a prime’s deficiency.

Third, lead with credible performance evidence. Because past performance substantially outweighs price, invest in relevant references, defensible project narratives, and accurate documentation. Use a focused capture strategy to assess competitors and partner needs, and an independent proposal review to catch technical noncompliance before submission.

Fourth, treat the first submission as final. NIH intends to award without discussions. Prepare compliant technical, past-performance, price, and administrative volumes, and verify the instructions for redacted copies and electronic delivery.

The seed-project estimate also deserves a separate quality check. The total price on Standard Form 1442 must agree with the NIH Division 50 Construction Cost Template. Contractors should reconcile subcontractor quotations, scope assumptions, equipment, labor, and construction sequencing against the Building 4 air-handling-unit documents. The government’s price review is not a substitute for an accurate internal estimate.

Winning an IDIQ position is only the first stage of business development. The NIH construction MACC has an eight-year ordering period, but individual task orders remain competitive opportunities and the stated minimum guarantee is only $1,000 per award. Teams should assess their capacity to estimate, price, staff, and execute repeated task-order competitions after award. Firms considering a joint venture should evaluate member qualifications under the actual solicitation rules; subcontracting relationships alone do not replace required prime-contractor experience.

Key Dates and Contractor Next Steps

Site-visit registration closes November 4, with the visit scheduled for November 9. Written questions are due November 23, and proposals are due December 15, 2026, at 2:00 PM Eastern Time. Dates and instructions remain subject to official amendments; contractors should monitor the NIH solicitation on SAM.gov.

Before final delivery, use a volume-level compliance checklist. The solicitation requires separate technical, past-performance, price, and administrative submissions; the first three include redacted and unredacted versions. Price material must not appear in the technical or past-performance volumes. Email attachments must comply with the 20 MB per-email limit, with multipart submissions clearly labeled. The government intends to award without discussions, making initial completeness especially important.

For contractors deciding whether to pursue the NIH construction MACC, the immediate priorities are a documented go/no-go, verified project references, early surety and insurance confirmation, credible past-performance evidence, and a reconciled seed estimate. Monitor written government answers and amendments rather than relying solely on third-party opportunity summaries.

The strongest candidates for this MACC will combine compliant qualifications with well-supported relevant performance and a realistic plan for pursuing work after award. Firms assessing their readiness can explore GDIC’s capture services and proposal development support to address pursuit and submission gaps.