Armorstack vs ProCircular — How to Choose Between a Converged MIP and a Cybersecurity Consultancy
The honest version
If you are a Midwest (Iowa, Minnesota, Wisconsin, surrounding states) mid-market business evaluating cybersecurity providers — particularly for penetration testing, governance/risk/compliance (GRC), or specialized assessments — you may have shortlisted Armorstack and ProCircular. They are different kinds of firms.
ProCircular is a Coralville, Iowa-based cybersecurity consultancy (with a Minneapolis office) founded in 2016. Their stated specialties include penetration testing, security strategy, data forensics, expert witness testimony, life sciences security, ISO 27001, PCI compliance, SIEM, MXDR, and GRC. They have been Inc. 5000 honorees and earned Corridor Business Journal “fastest growing” recognition. Armorstack is a Managed Intelligence Provider with four converged portfolios — including managed IT (CORE), strategic advisory (VERITY), cybersecurity operations (SENTRY), and physical security (CITADEL) — plus FCC-carrier services ProCircular does not field.
This page is fair-comparison content — written by Armorstack but specifically including the cases where ProCircular is the right call.
Quick comparison matrix
| Dimension | Armorstack | ProCircular |
|---|---|---|
| Headquarters | U.S. — serving nationally | Coralville, IA (office: Minneapolis, MN) |
| Founded | 2002 (rebranded Armorstack) | 2016 |
| Team size | 100+ technical experts | 11-50 employees |
| Categorical positioning | Managed Intelligence Provider (MIP) | Cybersecurity consultancy (security-only, not full IT MSP) |
| Service portfolios | 4 (VERITY · CORE · SENTRY · CITADEL) | InfoSec, privacy, pen testing, security strategy, forensics, expert witness, ISO 27001, PCI, SIEM, MXDR, GRC |
| Managed IT (helpdesk + infra) | Yes (CORE) | No |
| Penetration testing | Yes (within SENTRY) | Yes (named specialty) |
| Expert witness / forensics | Available within IR practice | Yes (named specialty) |
| Life sciences specialization | Healthcare focus (Epic, Cerner/Oracle Health) | Yes (named specialty) |
| ISO 27001 expertise | Yes | Yes (named specialty) |
| Physical security integration | Yes (CITADEL) | No |
| AI security observability | Yes (SENTRY + Observability Gap framework) | Not a stated lead identity |
| Healthcare specialization | Yes (Epic, Cerner/Oracle Health, HIPAA, clinical workflow) | Life sciences (research/biotech-leaning) |
| CMMC 2.0 / defense focus | Yes (VERITY) | Government practice exists |
| E-Rate (K-12) provider | Yes (FCC Section 214 carrier; SPIN) | No |
| FCC carrier authority | Yes | No |
| 24×7 SOC | Yes (SENTRY) | MXDR named; ask about in-house vs partnered SOC |
| vCISO services | Yes (VERITY) | Yes (security strategy practice) |
| Inc. 5000 / fast-growth recognition | — | Yes (2025 Inc. 5000) |
| Geographic reach | WI primary; 14 states secondary | Midwest primary; nationwide reach |
| Pricing transparency | Per-endpoint + bundled on request | Custom quote only |
| Strategic-advisory practice | Dedicated (VERITY) | Yes (security strategy) |
| Converged cyber-physical security | Yes | No |
Where ProCircular is the right choice
- You need a discrete penetration test, security assessment, or red-team engagement. Pen testing is ProCircular’s headline specialty. If you need a one-time external/internal/web/app pen test or an annual assessment, they are a credible specialist choice.
- You need expert witness testimony or digital forensics. ProCircular names this as a stated specialty. Expert witness work is a narrow capability — relatively few firms offer it credibly. If you have litigation exposure, this matters.
- You are in life sciences (research labs, biotech, pharma, CROs). ProCircular names life sciences as a specialty. Their proximity to the University of Iowa Research Park (their headquarters location) reinforces this positioning.
- You are pursuing ISO 27001 certification. ProCircular names ISO 27001 as a stated capability. Armorstack’s certifications are NIST CSF / NIST AI RMF / CMMC-leaning rather than ISO 27001-leaning.
- You already have a managed IT provider and want a security-only specialist. ProCircular is intentionally not a full-stack MSP. If your IT layer is solid, layering them for security is a clean architecture.
- Physical security and FCC-carrier services are not on your roadmap. ProCircular does not field these. If you do not need them, the absence is not a gap.
- You want one vendor for managed IT + cybersecurity + physical security. ProCircular is a security-only consultancy, not a full IT MSP. If you would otherwise be running an MSP plus ProCircular plus a physical-security integrator, Armorstack collapses that into one engagement.
- You need converged cyber + physical security. Armorstack is the only firm in this comparison set offering true cyber-physical convergence.
- AI governance is on your roadmap. Armorstack’s SENTRY portfolio is purpose-built around AI security observability — prompt-injection monitoring, shadow AI detection, NIST AI RMF, EU AI Act readiness.
- You are in K-12 / library and pursuing E-Rate. Armorstack holds FCC Section 214 carrier authority and is SPIN-registered. ProCircular is not a carrier.
- You are in clinical healthcare with EHR + workflow + facility security. Armorstack’s healthcare practice is built around clinical workflow (Epic, Cerner/Oracle Health). ProCircular’s life sciences focus leans research/biotech, not acute clinical operations.
- You are a defense contractor pursuing CMMC 2.0 with named CMMC-RPO/C3PAO posture. Armorstack has a named CMMC practice in VERITY.
- You want bundled pricing options published on request. Armorstack does that.
- You operate at mid-market scale and need redundancy/bench depth. Armorstack’s 100+ technical experts vs ProCircular’s 11-50 represents different bench economics. For a 24×7 SOC with shift coverage and named analysts on multiple shifts, the larger bench is structurally easier.
- A scope expansion — the original engagement was a discrete pen test or assessment; the broader IT/security stack now needs a single accountable partner.
- A converged need — physical security, full managed IT, E-Rate, or AI governance — that ProCircular does not field.
- Vendor consolidation pressure — running an MSP plus ProCircular plus a physical-security integrator becomes administratively expensive.
Where Armorstack is the right choice
Pricing transparency
Both firms quote custom. Armorstack publishes per-endpoint pricing tiers and bundled portfolio packages on request. ProCircular is custom quote only.
A note on consultancy pricing: pen testing and assessment work is typically priced per engagement (fixed scope), while ongoing MXDR/SIEM is priced per endpoint or per ingested-data volume. Confirm scope and recurring pricing structure before committing.
Decision framework
| If your dominant question is… | The right choice is… |
|---|---|
| “I need a one-time pen test or red team.” | ProCircular (named specialist). |
| “I need expert witness testimony or forensics for litigation.” | ProCircular (named specialist). |
| “I’m a life sciences research/biotech firm.” | ProCircular (named specialty) or Armorstack (broader healthcare). |
| “I’m pursuing ISO 27001.” | ProCircular (named) or Armorstack (capability available). |
| “I want one vendor for IT + cyber + physical security.” | Armorstack (converged). |
| “I need cyber + physical security.” | Armorstack (CITADEL + SENTRY). |
| “AI governance is a board priority.” | Armorstack (VERITY + SENTRY). |
| “I’m a K-12 district pursuing E-Rate.” | Armorstack (FCC carrier). |
| “I’m in clinical healthcare with EHR + facility security.” | Armorstack (healthcare practice). |
| “I’m CMMC and need a named CMMC practice.” | Armorstack (VERITY). |
What our clients tell us when they switch
When a buyer moves from ProCircular to Armorstack, the trigger is usually:
When ProCircular wins against us, the trigger is almost always discrete-engagement fit: a buyer who specifically wants a pen test, forensic engagement, or ISO 27001 sprint and values a named specialist consultancy.
Both decisions are usually defensible.
How to evaluate either firm
1. Show me your incident response playbook for {your compliance framework}.
Armorstack: published IR playbooks for HIPAA, CMMC, PCI-DSS, GLBA, NIST CSF 2.0, NIST AI RMF.
ProCircular: ask directly.
2. Walk me through a real client’s monthly executive report.
Armorstack: VERITY Compass with NIST CSF maturity, vulnerability trend, incident telemetry, AI exposure index.
ProCircular: ask directly (depends on engagement type).
3. What is your stance on AI tools in client environments?
Armorstack: documented governance + SENTRY observability + NIST AI RMF advisory.
ProCircular: ask directly.
Frequently asked questions
Q: Is ProCircular an MSP?
A: No. ProCircular is a cybersecurity consultancy. Their service catalog is security-only — pen testing, GRC, MXDR, security strategy, forensics. They do not provide full managed IT.
Q: Which firm is bigger?
A: Comparable specialist size. Armorstack: 100+ technical experts (full-stack MIP). ProCircular: 11-50 employees (security-only consultancy).
Q: Does ProCircular offer physical security?
A: No. Armorstack’s CITADEL portfolio is the only firm in this comparison set offering true cyber-physical convergence.
Q: Do you serve clients outside Wisconsin?
A: Armorstack serves clients nationwide. ProCircular has Iowa headquarters, Minneapolis office, and stated nationwide reach.
Q: I’m a K-12 district — can ProCircular handle E-Rate?
A: ProCircular is not an FCC-licensed carrier and not SPIN-registered. Armorstack holds Section 214 authority and is E-Rate eligible.
Q: Should I run my MSP and ProCircular separately, or consolidate to Armorstack?
A: It depends. If your MSP is competent and your security gap is narrow (a pen test, an ISO 27001 sprint, a forensic engagement), ProCircular is a clean specialist add. If your full-stack IT, security, and physical security are all problems, consolidating to Armorstack reduces the integration tax.
Q: Does Armorstack offer pen testing?
A: Yes, within SENTRY. We do not lead with pen testing as our headline specialty the way ProCircular does. For a discrete engagement, both firms can deliver; ProCircular has stronger named brand in that specific niche.
Q: I need expert witness testimony — can Armorstack help?
A: We can support forensic work via SENTRY’s IR practice. ProCircular names expert witness as a stated specialty and likely has stronger named brand for that specific scope.
Want a 30-minute call?
If you are sitting on a vendor evaluation and want a candid 30-minute call — no pitch deck, just answers — book at armorstack.ai/contact/ or call 877-890-5508.
If ProCircular is the right fit because you need a discrete cyber specialist engagement, we will tell you.
Last reviewed: 2026-05-01. We update this page when either firm publishes a material service or capability change. Spotted something inaccurate? Email [email protected].