United States · Investor

Fontinalis Partners

Last cheque observed Jul 2026; 65 cheques on record.

Deploying nowNew fund $86M, Jul 2026VC firm

Pre-seedSeedSeries ASustainabilityIndustrialIndustry 4.0

Deploying now
67%of best year4cheques in 12 months, 65 on record
Since the last cheque123days00hrs00min00sec
Median round$10MCheque size, as they say$100K – $5.0MRounds led0 of 65Sole investor5 roundsExits3 from the portfolioMostly inUnited States, 95%
Pitch Fontinalis Partners

Fontinalis Partners highlights

  1. 01

    4 cheques in the last 12 months

  2. 02

    Mostly Seed and Series A: 60% of its rounds

  3. 03

    Sole investor in 5 rounds, median $2.5M

  4. 04

    3 exits from the portfolio

What they do

Investing in early-stage startups on the new frontiers of mobility, industrial innovation, and energy.From their own website
Type
VC firm (from a list, unverified)
Cheque size
$100K – $5.0M as they say
Stages
Pre-seedSeedSeries ASeries B
Sectors
SustainabilityIndustrialIndustry 4.0
Based in
Detroit, United States
Cold pitches
Not stated

The record

Every round we can evidence, newest first65 appearances

  1. 2026

    4 rounds

  2. Jul
    OusterUS$200MWith 1 other
  3. May
    Helm.aiVenture · USUndisclosedWith 3 others
  4. Jan
    VulcanFormsSeries D · US · Ventureburn$220MWith 6 others
  5. Jan
    SibrosVenture · US$9.0MWith 5 others
  6. 2025

    3 rounds

  7. Sept
    ElementumVenture · USUndisclosedWith 2 others
  8. Jun
    zeroRISCSeed · US$10MWith 2 others
  9. Mar
    Mitra ChemSeries B · US$16MWith 3 others
  10. 2024

    6 rounds

  11. Sept
    HgenSeed · US$5.0MWith 3 others
  12. Aug
    GridwiseVenture · USUndisclosedWith 5 others
  13. Jun
    Swift SolarSeries A · US$27MWith 4 others
  14. Apr
    CondoitSeed · US$4.3MWith 4 others
  15. Mar
    FusedPre-seed · US$1.0MSole investor
  16. Jan
    HAAS AlertVenture · USUndisclosedWith 3 others
  17. 2023

    4 rounds

  18. Jul
    VeritySeries B · US$11MWith 2 others
  19. Jul
    ChipFlowPre-seed · GB$1.5MWith 4 others
  20. Jun
    HumaticsVenture · USUndisclosedWith 3 others
  21. Apr
    Robust.AISeries A · US$20MWith 4 others
  22. 2022

    3 rounds

  23. Aug
    AMPSeries A · SG$17MWith 1 other
  24. Jun
    Chain.ioSeries A · US$11MWith 3 others
  25. May
    UnfoldedVenture · USUndisclosedWith 1 other
  26. 2021

    3 rounds

  27. Dec
    DonutSeed · US$11MWith 7 others
  28. Dec
    Karamba SecuritySeries B · US$10MWith 1 other
  29. Nov
    CorosSeed · US$6.1MWith 3 others
  30. 2019

    4 rounds

  31. Jun
    GatikSeed · US · VentureBeat$4.5MWith 4 others
  32. Mar
    OusterDebt · US · FinSMEs$60MWith 5 others
  33. Feb
    IkeSeries A · US · TechCrunch$52MWith 4 others
  34. Jan
    HumaticsDebt · US · FinSMEs$28MWith 6 others
  35. 2018

    3 rounds

  36. Dec
    Wise SystemsSeries A · US · FinSMEs$7.0MWith 3 others
  37. Oct
    ClimaCellSeries B · US · FinSMEs$45MWith 5 others
  38. Jan
    CargoSeed · US · FinSMEs$5.5MWith 6 others
  39. 2017

    3 rounds

  40. Nov
    Lunar WirelessUS · FinSMEs$4.1MWith 9 others
  41. Jul
    CargoSeed · US · TechCrunch$1.8MWith 3 others
  42. Feb
    GoKidSeed · US · FinSMEs$1.0MWith 1 other
  43. 2016

    1 round

  44. Sept
    Karamba SecurityUS · FinSMEs$2.5MSole investor
  45. 2015

    8 rounds

  46. Jul
    ZagsterSeries A · US$3.5MWith 3 others
  47. Jun
    RevioSeed · US$120KWith 2 others
  48. Jun
    Classics&ExoticsSeed$120KWith 2 others
  49. Jun
    Cosmos LabsSeed$120KWith 3 others
  50. Jun
    Elegus TechnologiesSeed · US$170KWith 3 others
  51. Jun
    Splitting Fares (SPLT)Seed · US$145KWith 2 others

An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor.

The team

Named by the firm itself, on a filing, its Form ADV or its company registration5 named

CWChristopher Welles CheeverManager of General PartneriFiling they signed
CTChristopher Taylor StallmanManager of General PartneriFiling they signed
LALaura Anne PetterleChief Financial Officer, Chief Compliance Officer & Managing PartneriForm ADV
RHRalph H. Booth, IIManager of Fontinalis Partners, LLCiFiling they signed
RHRalph Harman BoothRetired Managing PartneriForm ADV

We also hold 17 people at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them.

What the register says

From the firm's own filings with the SEC, which it must file accurately by law

$247Mgross assets of its fundsOct 2026
Exemptreporting adviserventure or small private funds
Legal name
Fontinalis Partners, LLC
SEC number
CRD 161242

What they claim to have backed

From their own portfolio page (on their website)

22 of 47 we have independently watched raise

Automated case pickingAutonomous dispatch & routingAutonomous flightB2B autonomous vehiclesChipflowDigital manufacturing atEnterprise fleet managementFreight intelligenceFull-stack autonomous vehicleHighlandfleetsML-enabled custom battery cathodesMachine learningMobile driving analyticsOn-demand deliveryOver-the-air (OTA) connectedServerless geospatial dataSilicon carbide wafersSimple and flexibleSpace & AITransportation network ipoZero-touch warehouse intelligence systemZeroriscAir cargo e-commerce softwareClean hydrogen decarbonizing industryE-commerce deliveryEnergy management systemsEnterprise carpoolingFlexible microtransitFrontier inference clustersGeospatial data mappingHigh-efficiency solar technologyInfra for theLIDAR perceptionLP PortalLocation-based social appMobile parking paymentNovel flexible circuitsOperating system for roboticsPeer-to-peer carshareSchool bus fleet managementSemiconductor fabSimulationSoftware for electriciansSupply chain &Supply chain integrationsSupply chain managementUnsupervised learning

Weaker than a round we watched, stronger than a list somebody sold us. A firm is far less willing to put a company on its own site that it never funded.

Exits from the portfolio

Companies it backed that were later bought or listed3 in all

ParkMe, Inc.Bought by INRIXUndisclosedSept 2015
WheelzBought by TuroUndisclosedMay 2013
Everyday SolutionsBought by Synovia, Inc.UndisclosedSept 2012

An exit counts when it came after the firm's first round in the company. From historical deal records.

Who they invest alongside

The investors most often in the same rounds as Fontinalis Partners. A count of rooms they were both in, not a relationship either has claimed.

Recently backed

The latest companies Fontinalis Partners put money into.

Mentioned on podcasts

Episodes that name Fontinalis Partners in their description, not their title.

Quick answers about Fontinalis Partners

What does Fontinalis Partners invest in?

Fontinalis Partners invests most often at Seed and Series A (60% of the rounds on record), in sectors such as Sustainability, Industrial and Industry 4.0.

How active is Fontinalis Partners?

65 investments on record, 4 of them in the last 12 months. The most recent was in Jul 2026.

What has Fontinalis Partners invested in recently?

Its most recent investments on record: Ouster (Undisclosed round, Jul 2026), Helm.ai (Venture, May 2026) and VulcanForms (Series D, Jan 2026).

How big are Fontinalis Partners's cheques?

The median round it joins is $10M. It says it writes cheques of $100K to $5.0M.

Does Fontinalis Partners lead rounds?

Rarely, if at all: none of its 65 investments on record names it as the lead.

Where does Fontinalis Partners invest?

Most of the companies it backs are in the United States (95%).

Is Fontinalis Partners investing now?

Yes: it is actively investing, with 4 investments in the last 12 months.

Who does Fontinalis Partners invest alongside?

Most often Techstars (12 rounds together), Verizon Ventures (6 rounds together) and Bessemer Venture Partners (4 rounds together).

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Built from the rounds we watched, its filings and its own website, refreshed every night. How we count · Report a correction · Is this your firm? Claim it