Fundraising Fox

BioSqueeze

Butte, US · Founded 2021 · Delaware corporation · 38 employees on LinkedIn · 3 known investors

BioSqueeze develops well integrity solutions for the oil and gas industry, using biomineralization technology to seal cement gaps and leaks in wells. The company offers multiple sealing products (MicroSeal, MacroSeal, NanoSeal) and diagnostic services for well remediation and decommissioning.

Also known as BioSqueeze Inc.

Founders & leadership

LT
Latham TurnerNamed on SEC filing
MR
Mark RanalliNamed on SEC filing

Investors · 3

Reported raises · per SEC filings

Form D private placements

$13.5M disclosed across 2 rounds · 2021–2023

$9.4MraisedMay 2023 · 9 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Kristen SuddathDirector
  • Dwight HiebertDirector
  • Subodh GuptaDirector
  • Mark RanalliExecutive Officer, Director
Offering amount
$9.4M
Amount sold
$9.4M
First sale
Feb 2023
Incorporated
Corporation, Delaware, 2021
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$4.1MraisedSep 2021 · 37 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Latham TurnerDirector
  • Mark RanalliExecutive Officer, Director
Offering amount
$4.1M
Amount sold
$4.1M
First sale
Sep 2021
Incorporated
Corporation, Delaware, 2021
Federal exemptions
06b
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Company profile

researched Aug 2026

BioSqueeze is a biomineralization platform company focused on difficult subsurface engineering problems. Its technology is delivered as a low-viscosity liquid system that penetrates pores, fractures and void spaces that bulk materials such as cement cannot reach, then mineralizes in place through a controlled process that forms structural limestone.

The company frames its platform around three engineering functions: strengthening soils and unconsolidated materials to increase bearing capacity, sealing fluid pathways and reducing permeability to eliminate leakage, and healing fractures and aging concrete or cementitious infrastructure. Rather than positioning around a single vertical, BioSqueeze targets recurring subsurface conditions — complex geology, groundwater movement, fractures, unstable soils and aging infrastructure — across energy, defense, mining, infrastructure and environmental applications.

BioSqueeze publishes case studies and technical papers documenting well-integrity challenges, treatment design and field outcomes, and describes a multidisciplinary team spanning engineering, field operations, biological systems, manufacturing, defense programs and commercial development.

Traction

BioSqueeze reports over 400 field deployments, more than 55 customer master service agreements, over $10 million in U.S. Department of Defense development funding, and activity across five major infrastructure markets.

Full profile — market position, technology, go-to-market, geography

Market position

BioSqueeze positions its platform as an alternative where conventional placement materials reach their limits — where access is constrained, geology is complex, or permanent subsurface control is required.

Technology

The core technology is a biomineralization delivery system. Low-viscosity fluids are injected so they enter pores, fractures and void spaces, reaching pathways that conventional bulk materials often cannot access. A controlled mineralization process then forms structural limestone in place, producing permanent sealing, reinforcement or repair of the treated zone.

Go-to-market

The company sells directly through master service agreements with customers and engages prospects around specific applications, supporting sales with a technical resource library of case studies and published papers documenting field outcomes.

Operators and engineers working on subsurface and infrastructure problems in five markets: energy, defense, mining, infrastructure and environmental systems, including well-integrity work. The company reports more than 55 customer master service agreements.

Geography

Headquartered in Butte, Montana, United States.

Compiled by commissioned research from 1 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported
Customer master service agreementsJan 202555 MSAs
DoD development fundingJan 2025$10M
Field deploymentsJan 2025400 deployments
HeadcountAug 202638
Infrastructure markets servedJan 20255 markets

Company-reported or press-reported figures, each dated to when it was claimed — not independently audited.

Competitors · 1

by search overlap

Companies competing with BioSqueeze for the same Google search keywords, organic and paid, via search-intersection analysis.

Non-dilutive funding · 2 SBIR/STTR awards

Federal grants — no equity taken
AgencyPhaseYearAmount
U.S. Air ForceAir ForcePhase II2023$1.2M
Defense Advanced Research Projects Agency (DARPA)Defense Advanced Research Projects AgencyPhase II2022$4M

Source: SBIR.gov award data (U.S. Small Business Administration). SBIR/STTR awards are competitive federal R&D grants and contracts — non-dilutive capital alongside any venture rounds above.

Legal entities · 1

corporate structure
BioSqueezeDelaware

In the news

Research sources · 1

primary sources listed

1 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does BioSqueeze do?
BioSqueeze is a biomineralization platform company that seals, strengthens and repairs subsurface formations and infrastructure.
Who are BioSqueeze's investors?
BioSqueeze's investors include Next Frontier Capital, Zero Infinity Partners, Overture Climate.
How much funding has BioSqueeze raised?
BioSqueeze has disclosed $13.5M raised across 2 rounds.
Where is BioSqueeze headquartered?
BioSqueeze is headquartered in Butte, US.