Earth Support Corp

Prequalification

The prequal metrics GCs vet on — with the source behind each.

Licences, safety training, insurance limits and safety record for general-contractor prequalification. Every licence and training certificate is posted below in full. Insurance certificates, EMR and surety letters are issued to you on request, addressed to your project.

See the certificatesGet prequal documentsTalk to our prequal contact

Certificate wall

Every licence and certificate, posted in full

Not logos — the issued documents. Open any one full size, check the licence or serial number with the issuer, and see the date it runs to. Home addresses and ID photos are the only thing we redact. Newly completed courses show their scan as soon as it is filed.

current credentials
15
site supervisor
OSHA 30
competent-person courses
3
of field crew OSHA 10 trained
100%
Massachusetts state licences
2
federal credentials (EPA, FEMA, TSA)
3
  • EPA Construction General Permit (CGP) Site Inspector issued to Jean PrinslooView full size

    Federal

    EPA Construction General Permit (CGP) Site Inspector

    Holder
    Jean Prinsloo
    Certified
    Valid through
    Issuer
    U.S. Environmental Protection Agency, Water Permits Division

    Completed EPA's CGP Site Inspector Training Course and passed the final exam — meets the 2022 CGP Part 6.3.a training requirement to conduct stormwater and erosion-control inspections on permitted construction sites.

    Signed by the Director, EPA Water Permits Division. Expiry is tied to the 2022 CGP term.

    Original PDF

  • Completed — certificate scan coming

    Safety training

    OSHA 30-Hour Construction

    Holder
    Jean Prinsloo
    Issuer
    OSHA Outreach Training Program — authorized online provider

    30-hour OSHA Outreach Training Program course for supervisors and workers with safety responsibility — hazard recognition, avoidance, abatement and prevention across construction, including excavation, fall protection, cranes and rigging, and health hazards. Goes beyond the OSHA 10 that M.G.L. c.30 §39S requires on Massachusetts public works.

    Course completed. The certificate scan is being filed and will be posted here; a copy is available to GCs on request now.

  • Completed — certificate scan coming

    Safety training

    OSHA Excavation, Trenching & Shoring Training for Competent Persons

    Holder
    Jean Prinsloo
    Issuer
    Hazmat School — online OSHA training

    Competent-person training under 29 CFR 1926 Subpart P — soil classification, protective systems (sloping, shoring, shielding), cave-in hazards, access and egress, and the daily excavation inspections a competent person must carry out. The core safety role on support-of-excavation work.

    Course completed. The certificate scan is being filed and will be posted here; a copy is available to GCs on request now.

  • Completed — certificate scan coming

    Safety training

    OSHA Silica in Construction Training for Competent Persons

    Holder
    Jean Prinsloo
    Issuer
    Hazmat School — online OSHA training

    Competent-person training under 29 CFR 1926.1153 — implementing the written exposure control plan, Table 1 controls and dust suppression for rock drilling, coring and concrete cutting, and restricting access where exposure can occur.

    Course completed. The certificate scan is being filed and will be posted here; a copy is available to GCs on request now.

  • Completed — certificate scan coming

    Safety training

    OSHA Fall Protection for Competent Persons (Construction & General)

    Holder
    Jean Prinsloo
    Issuer
    Hazmat School — online OSHA training

    Competent-person training under 29 CFR 1926 Subpart M — identifying fall hazards at excavation edges, rig platforms and leading edges, and selecting, inspecting and supervising guardrail, personal fall arrest and other protection systems.

    Course completed. The certificate scan is being filed and will be posted here; a copy is available to GCs on request now.

  • Completed — certificate scan coming

    Safety training

    OSHA HAZWOPER Training (29 CFR 1910.120)

    Holder
    Jean Prinsloo
    Issuer
    OSHA HAZWOPER training provider (online)

    Hazardous Waste Operations and Emergency Response training — the OSHA requirement for work on sites with contaminated soil or hazardous waste: hazard recognition, PPE, decontamination and site control. Kept current with an annual 8-hour refresher.

    Course completed. The certificate scan is being filed and will be posted here; a copy is available to GCs on request now.

  • Completed — certificate scan coming

    Safety training

    OSHA Confined Space Operations Training — 29 CFR 1910.146 / 1926 Subpart AA

    Holder
    Jean Prinsloo
    Issuer
    Hazmat School — online OSHA training

    Hazards of work inside confined spaces — vaults, pits, tanks and similar enclosed areas — including hazardous atmospheres, entry controls, ventilation and emergency egress.

    Course completed. The certificate scan is being filed and will be posted here; a copy is available to GCs on request now.

  • Completed — certificate scan coming

    Safety training

    OSHA Silica in Construction

    Holder
    Jean Prinsloo
    Issuer
    Hazmat School — online OSHA training

    Worker training required by 29 CFR 1926.1153(i) for anyone exposed to respirable crystalline silica — health hazards, the tasks that create dust, engineering controls, respirators and medical surveillance.

    Course completed. The certificate scan is being filed and will be posted here; a copy is available to GCs on request now.

  • Massachusetts Hoisting Engineer License issued to Jean W Prinsloo (personal details redacted)View full size

    State licence

    Massachusetts Hoisting Engineer License

    Holder
    Jean W Prinsloo
    Licence no.
    HE-192955
    Valid through
    Issuer
    Commonwealth of Massachusetts, Division of Occupational Licensure (OPSI)

    State licence to operate hoisting machinery, restricted to HE-4B drill rigs, HE-2A excavators and HE-1B telescoping-boom cranes with cables — the classes ESC's rigs and support equipment run under.

    Look up HE-192955 with the MA Division of Occupational Licensure, (617) 727-3200.

    Home address and ID photo redacted from the public copy.

  • Massachusetts Construction Supervisor License issued to Jean W Prinsloo (personal details redacted)View full size

    State licence

    Massachusetts Construction Supervisor License

    Holder
    Jean W Prinsloo
    Licence no.
    CS-122896
    Valid through
    Issuer
    Commonwealth of Massachusetts, Board of Building Regulations and Standards

    Unrestricted — buildings of any use group which contain less than 35,000 cubic feet (991 cubic metres) of enclosed space.

    Look up CS-122896 with the MA Division of Occupational Licensure, (617) 727-3200.

    Home address and ID photo redacted from the public copy.

  • OSHA 10-Hour Construction issued to Jean PrinslooView full size

    Safety training

    OSHA 10-Hour Construction

    Holder
    Jean Prinsloo
    Serial
    1261925695
    Completed
    Issuer
    ClickSafety.com, Inc. — OSHA Outreach Training Program

    10-hour OSHA Outreach Training Program course in construction safety — fall protection, excavation, electrical, struck-by and caught-between hazards. Satisfies the M.G.L. c.30 §39S OSHA 10 requirement for Massachusetts public works.

    Completion certificate serial issued by ClickSafety.com, Inc. (IACET-accredited, OSHA-authorized online provider). The DOL wallet card follows within 90 days.

    Original PDF
  • OSHA 10-Hour Construction issued to James BarrettView full size

    Safety training

    OSHA 10-Hour Construction

    Holder
    James Barrett
    Serial
    1261925693
    Completed
    Issuer
    ClickSafety.com, Inc. — OSHA Outreach Training Program

    10-hour OSHA Outreach Training Program course in construction safety — fall protection, excavation, electrical, struck-by and caught-between hazards. Satisfies the M.G.L. c.30 §39S OSHA 10 requirement for Massachusetts public works.

    Completion certificate serial issued by ClickSafety.com, Inc. (IACET-accredited, OSHA-authorized online provider). The DOL wallet card follows within 90 days.

    Original PDF
  • OSHA 10-Hour Construction issued to Matthew YovicsinView full size

    Safety training

    OSHA 10-Hour Construction

    Holder
    Matthew Yovicsin
    Serial
    1261925696
    Completed
    Issuer
    ClickSafety.com, Inc. — OSHA Outreach Training Program

    10-hour OSHA Outreach Training Program course in construction safety — fall protection, excavation, electrical, struck-by and caught-between hazards. Satisfies the M.G.L. c.30 §39S OSHA 10 requirement for Massachusetts public works.

    Completion certificate serial issued by ClickSafety.com, Inc. (IACET-accredited, OSHA-authorized online provider). The DOL wallet card follows within 90 days.

    Original PDF
  • FEMA IS-100.c: Introduction to the Incident Command System (ICS-100) issued to Derek SnowView full size

    Federal

    FEMA IS-100.c: Introduction to the Incident Command System (ICS-100)

    Holder
    Derek Snow
    Certified
    Issuer
    FEMA — National Disaster & Emergency Management University, U.S. DHS

    Independent Study course on the Incident Command System — the NIMS command structure fire, police and public-works agencies run on emergency and multi-agency incident scenes. It means ESC slots into an incident commander's structure on emergency shoring and collapse call-outs instead of working around it. 0.20 IACET CEU.

    Certificate of Achievement signed by the Superintendent, National Disaster & Emergency Management University. FEMA Independent Study completions do not expire.

    Original PDF

  • Card not posted — federal ID

    Federal

    Transportation Worker Identification Credential (TWIC)

    Holder
    James Barrett
    Valid through
    Issuer
    Transportation Security Administration, U.S. DHS

    Federal security-threat-assessed credential for unescorted access to secure areas of MTSA-regulated ports and vessels — waterfront, seawall and marine work.

    A TWIC is a federal ID card with a photo and card number, so the card itself is not posted. Shown to the GC or facility security officer on request.

Gatekeeper metrics

Safety, bonding, insurance & licensing at a glance

The numbers a procurement team checks first. Each carries a source microline so it can be confirmed against the underlying certificate or letter.

  • Massachusetts Construction Supervisor License

    Verified

    CS-122896 — Unrestricted

    Source: Held by Jean W Prinsloo. Class: Unrestricted — buildings containing less than 35,000 cubic feet of enclosed space. Expires 03/02/2030. Licence card furnished with the prequal package.

    Issued by Commonwealth of Massachusetts, Board of Building Regulations and Standards · · expires

  • Federal contractor registration (SAM.gov)

    Verified

    UEI LGRMCNPCVYB7

    Source: Unique Entity ID assigned 09/14/2026. Full All Awards entity registration submitted 09/15/2026, pending activation; CAGE code to follow. Registered NAICS 238910 (primary), 238190 and 237990. Small business under the SBA size standards for all three codes — self-certified in SAM.gov, not an SBA certification.

    Issued by U.S. General Services Administration, SAM.gov ·

  • General liability

    Verified

    $1M occurrence / $2M aggregate

    Source: Certificate of insurance dated 06/10/2026, policy term 06/06/2026–06/06/2027. $1,000,000 each occurrence; $2,000,000 general aggregate; $2,000,000 products & completed operations aggregate; $1,000,000 personal & advertising injury. Additional insured on ongoing AND completed operations, primary & non-contributory, with waiver of subrogation.

    Issued by Next Insurance US Company (NAIC 16285) · · expires

  • Umbrella / excess liability

    Verified

    $4M occurrence / $4M aggregate

    Source: Occurrence form, same policy program and term as the general liability line.

    Issued by Next Insurance US Company (NAIC 16285) · · expires

  • Contractors errors & omissions

    Verified

    $25k occurrence / $50k aggregate

    Source: Carried on the same policy program. Stated plainly because a GC's prequal form asks, and because the limit is modest — larger E&O is available on request where a project requires it.

    Issued by Next Insurance US Company (NAIC 16285) · · expires

  • Workers' compensation & employer's liability

    Verified

    Statutory · EL $2M / $2M / $2M

    Source: Certificate of insurance dated 06/06/2026, policy term 06/06/2026–06/06/2027. Workers' compensation per statute; employer's liability $2,000,000 each accident / $2,000,000 disease each employee / $2,000,000 disease policy limit.

    Issued by Berkshire Hathaway Direct Insurance Company (NAIC 10391) · · expires

  • OSHA recordable incident record

    Verified

    Zero recordables · 2023–2025

    Source: Zero OSHA recordable injuries or illnesses in 2023, 2024 and 2025; no fatalities, hospitalisations, amputations or citations. As a firm of ten or fewer employees, ESC is partially exempt from routine OSHA 300/300A/301 recordkeeping under 29 CFR 1904.1(a)(1), and reports under 29 CFR 1904.39 and 1904.42. Certified by ESC in writing — this is a signed certification, not a third-party audit.

    Issued by Earth Support Corp. signed certification ·

  • Stressing equipment calibration

    Verified

    60-ton jack train · calibrated 06/2026

    Source: Independent calibration of the 60-ton jack (#047990), ENERPAC pump and WIKA 316SS 10,000 psi gauge as a matched train, 0–9,000 psi in 1,000 psi steps. Calibrated 22 June 2026 by Thompson & Lichtner of Canton, MA. The report states no expiry; ESC recalibrates annually.

    Issued by The Thompson & Lichtner Company, Inc. (Lab ID 11176) ·

  • Written safety & health program

    Verified

    OSHA-aligned · Rev 1.0 + 12 JHAs

    Source: Written Safety and Health Program (Rev 1.0), an Activity Hazard Analysis for drilled pier installation, and twelve task-level Job Hazard Analyses. Jean Prinsloo is the designated Competent Person for excavation, rigging, silica, fall protection and daily rig inspection, and holds stop-work authority. Aligned to OSHA construction standards; the programme is ESC's own, not a third-party certification.

    See the full programme

    Issued by Earth Support Corp. ·

  • Experience Modification Rate (EMR)

    On request

    On request

    Source: Provided to general contractors on request — current EMR letter, issued directly by our broker, Next First Insurance Agency.

  • Bonding capacity

    On request

    On request

    Source: Provided to general contractors on request — surety letter, single and aggregate.

  • ISNetworld / Avetta

    On request

    Prequal-ready

    Source: The full prequalification packet — certificates, licence, safety programme and JHAs — is assembled and issued on request in whatever format your portal requires. ESC is not currently enrolled in ISNetworld or Avetta; we enrol on award where a GC requires it.

Each figure above is backed by a current certificate or letter we issue to general contractors on request, rather than a static number posted publicly — so the copy you receive is always current and addressed to your project. Request the package below and we’ll send the matching documents with the values filled in.

Prequal documents

Insurance certificates & program documents

Licences and training certificates are posted above. Insurance certificates name your project and additional insureds, so those are issued to general contractors on request.

Our completed ConsensusDocs 721 Subcontractor’s Statement of Qualifications is on file with ConstructConnect — GCs using ConstructConnect can request it there, or download a public copy below (reference contacts and contract values are provided to GCs directly). A COI has to carry your project and additional insureds to be any use to you, so we issue a fresh one per request. Use a button below or contact us.

  • Statement of Qualifications — ConsensusDocs 721 (public copy)

    PDF — download

    Download

  • Certificate of Insurance (COI)

    Sent on request

    Request

  • Safety program summary + JHAs

    Sent on request

    Request

  • Jack calibration report

    Sent on request

    Request

Safety & OSHA compliance

A safety program built for high-consequence ground

Deep foundations are buried, irreversible work next to occupied structures. Our program is written to OSHA standards and kept prequal-ready.

OSHA-aligned program

Field operations follow an OSHA-compliant health & safety program, including required competent-person oversight for excavation, trenching, and rigging.

Prequal-ready documentation

Safety manual, certificate of insurance, and EMR letter are maintained for general-contractor prequalification and supplied on request.

Daily site discipline

Task-specific job hazard analysis, daily toolbox talks, and PPE enforcement keep crews and adjacent structures protected on every dig.

Industry standards

Aligned with the deep-foundation industry bodies

We hold our means, methods, and safety to the standards of practice published by the foundation-engineering and pile-driving associations. Follow any badge to its issuer.

Need our prequal package?

Tell us the GC, the project, and your prequal portal (ISNetworld, Avetta, or your own form) — we'll return current certificates and a quote within 3 days.

Start prequal & quote+1 978 846 6851

Or email plans to bids@earthsupportcorp.com

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