Safeguard
SBOM

Best SBOM tools for automating bill-of-materials generation

A practical look at the best SBOM tools for 2026, comparing how Safeguard and Mend.io generate, format, and continuously update software bills of materials.

Priya Mehta
DevSecOps Engineer
7 min read

If you're evaluating SBOM tooling in 2026, you've likely already run into Mend.io — one of the longest-running names in software composition analysis, tracing back to its earlier identity as WhiteSource. Mend.io generates software bills of materials as part of a broader SCA and license-compliance platform, and it does so competently: CycloneDX and SPDX export, dependency inventories, and vulnerability mapping against known components. The question worth asking isn't whether Mend.io can produce an SBOM — it's whether an SBOM generated at scan time, disconnected from your build pipeline and signing infrastructure, is enough for what SBOMs are actually for: proving what shipped, verifying it wasn't tampered with, and answering an auditor's or customer's questions in minutes instead of days. This post compares Safeguard and Mend.io on format support, generation triggers, provenance linkage, and VEX handling — the dimensions that actually determine whether your SBOM program holds up under scrutiny.

Do both tools support the SBOM standards regulators actually ask for?

Yes, and this is worth confirming rather than assuming. The two formats that matter in 2026 are CycloneDX (OWASP-stewarded, strong in vulnerability and VEX workflows) and SPDX (Linux Foundation-stewarded, an ISO/IEC 5962 standard and the format referenced most often in U.S. federal guidance following EO 14028). Mend.io supports export in both formats, which is the baseline expectation for any SCA tool marketing itself as SBOM-capable in 2026 — a customer receiving a CycloneDX file from Mend.io and an SPDX file from a different vendor should be able to diff them meaningfully.

Safeguard also generates both CycloneDX and SPDX output, but the distinction we'd point buyers toward isn't format coverage — nearly every serious vendor has caught up on that — it's when the SBOM is generated and what it's anchored to. A format checkbox tells you nothing about whether the document reflects what was actually built and deployed, or whether it's a best-effort reconstruction from a periodic scan.

Is the SBOM generated from a scan, or from the actual build?

This is the dimension we think gets glossed over most often in vendor comparisons, and it's the one that matters most for accuracy. Traditional SCA-first tools, Mend.io included, are architecturally rooted in scanning: they analyze a repository, a manifest file, or a built artifact after the fact and infer the dependency tree from lockfiles and package metadata. That approach works well for known ecosystems with clean manifests, but it can miss components pulled in through custom build steps, vendored code without manifest entries, or multi-stage container builds where intermediate layers introduce dependencies that never touch a package.json or pom.xml.

Safeguard's SBOM generation is designed to hook into the build and CI/CD pipeline itself — capturing what's actually compiled, packaged, and pushed, rather than reconstructing it after the fact from source inspection. This matters concretely for container images and compiled artifacts, where scan-time inference is inherently lossy compared to build-time observation. If your primary artifacts are containers with multi-stage Dockerfiles, ask any vendor — Mend.io included — whether their SBOM reflects the final image layers or the declared manifest, because those are not always the same list.

How do the two handle continuous versus point-in-time SBOMs?

A one-time SBOM is a compliance artifact; a continuously regenerated one is a security control. Mend.io, like most SCA platforms, ties SBOM generation to scan cadence — triggered on a schedule or on developer-initiated scans, which is standard practice across the SCA category and works fine as long as your release cadence and scan cadence stay in sync.

Safeguard treats SBOM generation as an output of every build event rather than a separate scheduled activity, so the bill of materials for a given artifact is produced at the moment that artifact is created, not reconciled afterward. For teams shipping multiple times a day, the practical difference is whether the SBOM you hand to a customer or auditor is guaranteed to correspond to the exact artifact in question, versus one generated from the most recent scan that happened to run against that branch.

Which tool ties the SBOM to build provenance and signing?

SBOMs answer "what is in this software." Provenance and signing answer "can I trust that this SBOM and this artifact actually go together." These are related but separate problems, and it's worth being precise about which vendors solve which one.

Mend.io's core strength is in composition analysis and license/vulnerability intelligence layered on top of the dependency list — that's the product's heritage and where its depth lies. Provenance attestation (in the SLSA sense) and artifact signing are not the primary axis Mend.io is built around; if you need that connective tissue, check current documentation for what's supported versus what requires a separate tool in your pipeline.

Safeguard is built supply-chain-first: SBOM generation sits alongside build provenance capture and artifact signing as part of the same pipeline instrumentation, so the SBOM, the record of how the artifact was built, and the cryptographic attestation of its integrity are produced together rather than stitched together from separate tools after the fact. For organizations under SOC 2, FedRAMP, or customer security questionnaires that increasingly ask for SLSA provenance alongside an SBOM, having both come from the same instrumented pipeline reduces the integration work of reconciling two vendors' outputs.

Do both tools support VEX for cutting through vulnerability noise?

An SBOM without VEX (Vulnerability Exploitability eXchange) context tells you every component you have — including the ones with a CVE that your code path never actually calls. VEX statements let a tool assert "this component has CVE-XXXX but it's not exploitable in this deployment," which is what turns an SBOM from a static inventory into something a triage team can act on without drowning in false positives.

CycloneDX has native VEX support, and Mend.io's vulnerability database and remediation guidance are a mature, established part of its platform — this is genuinely one of its strengths as a long-running SCA vendor. Safeguard also produces VEX-compatible output tied to CycloneDX, with the exploitability context derived from the same build and dependency data used for SBOM generation, so the vulnerability and inventory views stay consistent rather than requiring a second tool to reconcile them. If VEX-driven triage volume is your primary pain point, weigh both vendors' current CVE feed freshness and remediation-guidance depth directly against your own dependency mix — that's a claim worth testing on your own codebase rather than taking on faith from either vendor's marketing.

How Safeguard Helps

If you're building (or rebuilding) an SBOM program for 2026, the practical checklist is: standards-compliant output (CycloneDX and SPDX), generation tied to the actual build rather than a periodic scan, continuous regeneration on every release, provenance and signing that travel with the SBOM, and VEX context that keeps vulnerability triage manageable.

Safeguard is built around that checklist natively. SBOM generation runs as part of pipeline instrumentation, producing CycloneDX and SPDX documents anchored to the actual build event — not a reconstruction from source inspection days or weeks later. Because provenance capture and artifact signing live in the same pipeline layer, a Safeguard-generated SBOM ships with a verifiable record of how the artifact was built, not just a list of what's inside it. Vulnerability and VEX data draw from that same build-time dependency graph, so triage teams see exploitability context that's consistent with the exact artifact in production, not a nightly scan of the wrong branch.

For teams evaluating Mend.io alongside Safeguard, the honest framing is that they solve overlapping but distinct problems: Mend.io is a mature choice if your priority is deep composition analysis and license compliance layered onto an SBOM. Safeguard is built for teams that need the SBOM to be one output of a fully instrumented, provenance-backed software supply chain — where the bill of materials, the build record, and the signature are inseparable. Whichever direction you lean, ask both vendors the same concrete questions: what triggers SBOM generation, what artifact it's anchored to, and what happens when a customer asks you to prove it.

Never miss an update

Weekly insights on software supply chain security, delivered to your inbox.