Hammr
YC W23San Francisco, US · Founded 2023 · Washington corporation · 10 employees · Hiring · 8 known investors
Find your way into Hammr
Sign up to see every warm intro you have to Hammr
- Paths you didn't know you had: your email and LinkedIn already hold routes to the Hammr team. We find them for you
- 2nd- and 3rd-degree connections: the friend-of-a-friend routes that take hours to manually find through your inbox or LinkedIn
- Answers now, not in days: momentum is everything in a raise. Skip asking around whether someone knows someone
Days of research, done the moment you sign in, with every route ranked by how warm it is.
Hammr provides payroll, HR, and operations software purpose-built for construction contractors and specialty firms managing government and commercial projects. The platform consolidates prevailing wage, certified payroll, and administrative functions to reduce manual work.
Also known as Hammr
Founders & leadership· Y Combinator alumni (W23)
Hammr was founded in 2023 by Brek Goin and Sanket Firodiya.


Investors · 8
How we know: the VCSheet dataset · Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · pioneerfund.vc · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: funding news · somacap.com · Y Combinator's founder network · Not right? Tell us
How we know: Suffolk Technologies's portfolio page · Y Combinator's founder network · Not right? Tell us
How we know: the Y Combinator directory · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: the VCSheet dataset · Not right? Tell us
How we know: funding news · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
Reported raises · per SEC filings
Form D private placements$25K disclosed across 1 round · 2019
▶$25KraisedNov 2019 · 1 investors · Other TechnologyRule 506(b)
- Brek GoinExecutive Officer, Director, Promoter
- Offering amount
- $750K
- Amount sold
- $25K
- First sale
- Oct 2019
- Incorporated
- Corporation, Washington, 2017
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Company profile
researched Aug 2026Hammr develops software that combines payroll, human resources, and field operations for construction companies. The platform covers construction payroll with support for multiple pay rates, prevailing wage and union rates; certified payroll and compliance; time-tracking through a mobile app intended for field crews; crew and project scheduling; team messaging; benefits administration; and HR functions such as onboarding and employee tracking.
The product is positioned as an alternative to general-purpose payroll systems, with the company noting that contractors migrate to Hammr from providers including ADP, Paychex, UKG and QuickBooks. Hammr integrates with accounting and ERP tools including QuickBooks Desktop, QuickBooks Online, Sage, Xero and Acumatica, and is listed on the Sage Intacct Marketplace. Service delivery is bundled with the software: the company offers dedicated account management, phone, email and text support, and assistance with onboarding, data migration and training.
Business model
Hammr sells a software platform to contractors, engaging prospects through demo requests and supporting accounts with dedicated account managers, onboarding and migration services.
Traction
Customer testimonials cite outcomes including more than 500 hours per year of avoided administrative work and over $52,000 in annual payroll savings, reductions in prevailing wage payroll processing time, and adoption of the mobile app by field crews.
Latest developments
Hammr became available on the Sage Intacct Marketplace and continues to publish customer case studies on prevailing wage and certified payroll processing time reductions.
▸Full profile — market position, technology, go-to-market
Market position
Positions itself as construction-purpose-built payroll and HR software competing with horizontal payroll providers such as ADP, Paychex, UKG and QuickBooks.
Construction-specific handling of prevailing wage, certified payroll and union rates in a single system that also covers time-tracking, scheduling and HR, paired with hands-on support and migration assistance.
Technology
A unified platform spanning payroll (multiple pay rates, prevailing wage, union rates), certified payroll and compliance reporting, a field-facing time-tracking mobile app, scheduling, messaging, benefits and HR onboarding, with integrations into QuickBooks Desktop and Online, Sage, Xero and Acumatica.
Go-to-market
Inbound demo requests from the company website, an integration listing on the Sage Intacct Marketplace, customer testimonials and reviews, and educational content such as payroll software comparisons and customer case studies.
Specialty construction contractors, including firms delivering projects for government agencies, higher education institutions, and large commercial, industrial and infrastructure contractors.
Compiled by commissioned research from 1 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Related companies · 7
Companies working in the same space as Hammr.
Timeline · 1
launches, deals, and filingsHammr announced availability of its product on the Sage Intacct Marketplace.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
Legal entities · 3
corporate structureIn the news
▸Research sources · 1
primary sources listed
- Hammrhammr.com · web
1 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Hammr do?
- Hammr is construction-specific payroll, HR and field operations software for specialty contractors.
- Who founded Hammr?
- Hammr was founded by Brek Goin, Sanket Firodiya in 2023.
- Who are Hammr's investors?
- Hammr's investors include Broom Ventures, Pioneer, Soma Capital, Suffolk Technologies, Y Combinator, Avalanche VC, Great Wave Ventures, Twenty Two Ventures.
- How much funding has Hammr raised?
- Hammr has disclosed $25K raised across 1 round.
- Where is Hammr headquartered?
- Hammr is headquartered in San Francisco, US.










