SG Capital Partners
SG Capital Partners is a privately held Stamford, Connecticut-based non-prime mortgage originator founded in 2014 by Justin Mahoney, producing seasoned residential loans for RMBS securitization and offering broader residential and commercial lending programs.
- Company typePrivate
- Founded2014
- HeadquartersStamford, United States
- Headcount11–50
- GTM typeB2B
- OfferingServices
What SG Capital Partners does
SG Capital Partners LLC is a privately held, Stamford, Connecticut-based financial services firm founded in 2014 by Justin Mahoney that specializes in offering complete financial lending programs and solutions for residential and commercial borrowers. The firm operates as a non-prime mortgage originator, producing seasoned residential mortgage loans for inclusion in private-label residential mortgage-backed securities (RMBS) transactions. Its most prominent disclosed activity is as one of two main co-originators — alongside Amwest Funding Corp. — of the OBX 2026-R2 Trust, a $407.3 million non-prime RMBS securitization backed by 947 seasoned residential mortgages.
Operationally, SG Capital Partners runs a lean origination platform with a disclosed headcount in the 11–50 employee range, focused on loan production rather than balance-sheet lending at scale. The core workflow appears to be: originate non-conforming residential (and adjacent commercial) loans, pool seasoned production, and distribute via securitization vehicles into capital markets — a classic originate-to-sell model that monetizes loans through origination fees and gain-on-sale economics rather than net interest margin.
Information gaps are material: revenue is not disclosed, customer/borrower segments are not enumerated, no products or pricing terms are publicly available, and no management team beyond the founder is documented. The website (sgcp.com) was not accessible during data capture. As a result, the firm's full product breadth, geographic licensing footprint, and channel mix cannot be characterized beyond the residential non-prime securitization activity evidenced by the OBX 2026-R2 Trust transaction.
SG Capital Partners firmographics
Firmographics- Name
- SG Capital Partners
- Legal name
- SG Capital Partners LLC
- Website
- https://www.sgcp.com/
- Company type
- Private
- Founded year
- 2014
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- SG Capital Partners is a privately held Stamford, Connecticut-based non-prime mortgage originator founded in 2014 by Justin Mahoney, producing seasoned residential loans for RMBS securitization and offering broader residential and commercial lending programs.
- Ownership category
- akta.pro rank
SG Capital Partners industry classification
Industry- Product category
- Mortgage Lending
- NAICS
- Mortgage and Nonmortgage Loan Brokers (52231), Mortgage and Nonmortgage Loan Brokers (522310), Commercial Banking (522110), Depository Credit Intermediation (5221)
- SIC
- Mortgage Bankers & Loan Correspondents (6162), National Commercial Banks (6021), Short-Term Business Credit Institutions (6153)
- akta.pro primary industry
- Middle-Market Lending (FSANADAI)
- akta.pro secondary industry
- Venture Debt Providers (FSANAAAL)
Keywords
Where SG Capital Partners is headquartered
LocationHeadquarters
- HQ city
- Stamford
- HQ country
- United States
- HQ region
- North America
Markets served
SG Capital Partners business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales
SG Capital Partners product offering
Product offeringCore offering
SG Capital Partners LLC provides complete financial lending programs and solutions for residential and commercial businesses. The company originates non-prime residential mortgages, serving as a main originator for securitization transactions such as mortgage-backed securities trusts. Its lending activities include co-origination of mortgage loans bundled for inclusion in structured finance deals.
Differentiator
Problem solved
Functional benefit
Products and services
- Residential Mortgage Lending Programs Financial lending programs for residential businesses, including origination of non-prime residential mortgages bundled into securitization transactions such as mortgage-backed securities trusts.
- Commercial Lending Programs Complete financial lending solutions for commercial businesses.
- Mortgage Securitization Origination
Companies that use SG Capital Partners
Customer profileIdeal customer profiles2 records
SG Capital Partners technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
SG Capital Partners partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Amwest Funding Corp.coreAmwest Funding Corp. and SG Capital Partners LLC served as the two main originators for the OBX 2026-R2 Trust, a $407.3 million non-prime residential mortgage-backed securities transaction backed by 947 seasoned residential mortgages. The partnership involves co-origination of mortgage loans for inclusion in securitization transactions.
Scale indicators1 record
Recent moves3 records
Expansion highlights3 records
SG Capital Partners competitors and assessment
Company assessmentDirect peers
- Newfi: Non-QM residential mortgage originator that funds loans for its own account and sells them into securitization or whole-loose trades. Highly comparable to SG Capital's non-prime residential origination and securitization model evidenced by the OBX 2026-R2 deal.
- Angel Oak Mortgage Solutions: Non-QM mortgage origination arm of Angel Oak Capital Group, focused on residential loans that are aggregated and securitized. Directly comparable product set and securitization exit to SG Capital's non-prime RMBS activity.
- Deephaven Mortgage: Specialty non-prime and investor-focused residential mortgage originator with a securitization-heavy funding model. Comparable to SG Capital in targeting non-QM borrowers and distributing via MBS.
- A&D Mortgage: Non-QM wholesale and retail mortgage lender known for securitization executions of non-prime residential paper. Closely comparable in product mix and securitization-driven business model.
- Athas Capital Group: Non-QM residential mortgage lender with both retail and wholesale channels and a securitization program. Comparable specialty focus and origination-to-securitization workflow.
- Civic Financial Services: Private money and non-QM mortgage lender that originates residential and small-balance commercial loans. Comparable hybrid residential/commercial non-bank lending model to SG Capital.
Emerging players
- Verus Mortgage Capital: Non-QM MBS issuer and aggregator that purchases loans from originators. Comparable on the securitization side of SG Capital's business, though positioned more as a buyer/program manager than direct originator.
Broad incumbents
- Caliber Home Loans (now Newrez): Large residential mortgage originator with significant non-QM and correspondent channels. Overlaps SG Capital's residential origination business, but at materially larger scale and broader product set.
- loanDepot: National retail and wholesale residential mortgage lender with a non-QM offering. Comparable product category, but materially larger and more diversified than SG Capital.
- United Wholesale Mortgage (UWM): Largest US wholesale mortgage lender. Operates broadly in the same residential origination space as SG Capital, though predominantly in agency/conforming rather than non-prime; useful as a scale benchmark.
Market position
Strengths4 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights5 records
Customer concentration
SG Capital Partners social profiles
Digital presenceSG Capital Partners financial estimates
Financial estimateRevenue estimate
Valuation estimate
SG Capital Partners leadership team
Management profileNumber of profiles
Profiles1 record
SG Capital Partners funding detail
Funding detailFunding overview
Funding rounds1 record
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
SG Capital Partners M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about SG Capital Partners
What does SG Capital Partners do?
SG Capital Partners LLC provides complete financial lending programs and solutions for residential and commercial businesses. The company originates non-prime residential mortgages, serving as a main originator for securitization transactions such as mortgage-backed securities trusts. Its lending activities include co-origination of mortgage loans bundled for inclusion in structured finance deals.
Is SG Capital Partners a public or private company?
SG Capital Partners is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was SG Capital Partners founded?
SG Capital Partners was founded in 2014. It employs 11 to 50 people.
Where is SG Capital Partners based?
SG Capital Partners is headquartered in Stamford, United States, in the North America region.
Who are SG Capital Partners's main competitors?
Direct peers on record are Newfi, Angel Oak Mortgage Solutions, Deephaven Mortgage, A&D Mortgage, Athas Capital Group and Civic Financial Services. Verus Mortgage Capital is listed as an emerging player. Broad incumbents are Caliber Home Loans (now Newrez), loanDepot and United Wholesale Mortgage (UWM).
Does SG Capital Partners have an API?
No public API is recorded for SG Capital Partners.
What industry is SG Capital Partners in?
SG Capital Partners's product category is Mortgage Lending. Its primary akta.pro industry code is FSANADAI, Middle-Market Lending, with a secondary code of FSANAAAL, Venture Debt Providers. Its NAICS code is 52231 and its SIC code is 6162.