Packaging and plastics M&A splits into formats that buyers treat as separate niches: rigid plastics and injection molding, flexible packaging and film, labels, corrugated and paper-based packaging, and protective packaging. An advisor with a closed deal in your format knows which buyers are active in it.
This guide covers founder-owned and family-owned converters, molders, extruders and label makers in the lower middle market. Every firm below has at least one named packaging or plastics transaction on its own website, and we link each one.
How We Evaluated These Advisors
We ranked on public evidence, not on size or brand. A firm needed a named packaging or plastics transaction on its own website to be listed at all.
Methodology: Packaging and Plastics M&A
Records were read on each firm's own website in October 2026, then weighted across four criteria:
(1) Named Transaction Record (40%) Packaging or plastics deals named on the firm's own website, with the buyer, seller or format stated. Dated sell-side closes count more than anonymized or buy-side entries.
(2) Dedicated Practice (25%) A packaging, plastics or combined industry page on the firm's own website.
(3) Format Coverage (20%) How many of the five formats (rigid and molded, flexible, labels, corrugated, protective) the firm's own pages cover.
(4) Recency (15%) How recent the named records are, as stated on the page.
Deal size, fees and success rates are not scored, because no firm here publishes them in a comparable way.
Firms We Left Out
These firms were checked and not listed. Each reason describes what we could open, not the firm's ability.
- Harris Williams: sector pages found, but no named packaging or plastics transaction on its own site.
- Grace Matthews: only plastics and chemicals deals filed under a chemicals sector.
- FOCUS Investment Banking: sector listing only, with no named packaging deal.
- Prairie Capital: its own site did not load for our checks.
- Houlihan Lokey: its own site did not load for our checks.
- Generational Equity: its own site refused our checks.
- Benchmark International: no named packaging or plastics record found.
- Bundy Group: no named packaging or plastics record found.
- Mazzone: no named packaging or plastics record found.
- Founders Advisors: no named packaging or plastics record found.
Quick Comparison: All 11 Firms at a Glance
Use this table before reading the profiles. The record column states what we opened on each firm's website.
| Rank | Firm | Verified Record | Best For |
|---|---|---|---|
| 1 | PMCF | Five named transactions on its transactions page | Founder-owned plastics and packaging converters that want a dedicated practice and several named closes to check. |
| 2 | Lincoln International | FCA, sold to Delos Capital | Larger packaging platforms and sponsor-backed companies that want one bank covering flexibles, rigid, labels and corrugated. |
| 3 | Stout | Three anonymized packaging and plastics experience entries | Plastics businesses, including medical and healthcare component makers, that want an advisor with a stated plastics focus. |
| 4 | Mesirow | Custom Blow Molding (2016) and Prairie State Group (2022) | Packaging converters, flexible packaging and label businesses selling to sponsor-backed platforms. |
| 5 | Capstone Partners | Key Container (2026) and CCW Products (2013) | Corrugated and specialty packaging companies, and plastic container makers, that want a bank with recent published packaging coverage. |
| 6 | Peakstone Group | Northwest Packaging Inc., sold to Schwarz Partners (May 2025) | Founder-owned packaging and paper companies that want a boutique with a dedicated practice page. |
| 7 | Baird | Polyair (protective packaging) sold to Intertape Polymer Group | Packaging companies that want a large bank with a published practice and long-form case studies. |
| 8 | Brown Gibbons Lang & Company | Riverside Paper Co. (2020) and Bourbon S.A. (2011) | Founder-owned packaging distributors and paper-based packaging companies, and plastics component makers. |
| 9 | BDO Capital Advisors | Brookdale Plastics, LLC, sold to Placon Corporation (November 2016) | Thermoformed and rigid plastic packaging makers serving medical and retail customers. |
| 10 | Clayton Capital Partners | LMR Plastics, sold to Parkway Products | Injection molders and small precision plastics manufacturers selling to a strategic molder. |
| 11 | William Blair | Buy-side: Butterfly Equity's acquisition of ePac Flexible Packaging | Packaging sellers who want to see which sponsor buyers a large bank already advises. |
Which Advisor for Which Format
Match your format first, then check the named records. A firm can appear under several formats.
| Format | Firms With a Record | Records to Check |
|---|---|---|
| Rigid Plastics and Injection Molding | PMCF, Mesirow, Capstone Partners, Clayton Capital Partners, BDO Capital Advisors, Stout | Container, thermoforming, blow molding and injection molding records |
| Flexible Packaging and Film | Mesirow, Lincoln International, Baird, William Blair | Prairie State Group sale, flexibles practice listings, buy-side ePac record |
| Labels | Mesirow, Baird, Stout, Lincoln International | Pressure sensitive labels, Brook & Whittle, anonymized foodservice labels entry |
| Corrugated and Paper-Based Packaging | Capstone Partners, Brown Gibbons Lang, PMCF, Lincoln International, Peakstone | Key Container, Riverside Paper, Albert Paper Products |
| Protective and Industrial Packaging | Baird, Lincoln International | Polyair and FCA records |
Selling a Packaging or Plastics Company? Get Matched Free.
ProCloser.ai matches packaging and plastics owners with M&A advisors based on your format, size and buyer type. Includes success-only options. No retainer is required to get matched.
Get Matched with an Advisor →The Market in Our Deal Data
We checked the ProCloser Deal Index for packaging and plastics deals. The index holds 2,211 deals as of October 31, 2026, and every one is a technology deal such as software or IT services.
Deal Index, data as of October 31, 2026
Sample size n = 0, data as of October 31, 2026
With a sample of 0, we publish no multiple, buyer mix, acquirer list, value range or cross-border share for this sector. A search of the index for packaging terms returns only technology companies, such as a packaging quality-control software maker acquired by Veralto.
The buyers named in the firm records below come from firm announcements, not from a market sample. For the broader sector, see our manufacturing valuation multiples guide.
What to Look for in a Packaging or Plastics M&A Advisor
- Named closes in your format. Rigid, flexible, label and corrugated businesses attract different buyers.
- Recent records. Ask for closes in the last two years, because several records on this list are older.
- The team that ran the deal. Ask which senior bankers ran each named transaction and whether they would run yours.
- Buyer fit. Ask which sponsors and strategics have bought in your format and why.
Detailed Firm Profiles
The profiles follow the ranking tiers. Each links to the firm's own pages so you can read the record yourself.
Tier 1: Dedicated Practice and Several Named Closes
- PMCF: Five named transactions on its transactions page.
- Lincoln International: FCA, sold to Delos Capital.
- Stout: Three anonymized packaging and plastics experience entries.
- Mesirow: Custom Blow Molding (2016) and Prairie State Group (2022).
Tier 2: Named, Dated Packaging or Plastics Records
- Capstone Partners: Key Container (2026) and CCW Products (2013).
- Peakstone Group: Northwest Packaging Inc., sold to Schwarz Partners (May 2025).
- Baird: Polyair (protective packaging) sold to Intertape Polymer Group.
- Brown Gibbons Lang & Company: Riverside Paper Co. (2020) and Bourbon S.A. (2011).
Tier 3: One Named Record or a Buy-Side Record
- BDO Capital Advisors: Brookdale Plastics, LLC, sold to Placon Corporation (November 2016).
- Clayton Capital Partners: LMR Plastics, sold to Parkway Products.
- William Blair: Buy-side: Butterfly Equity's acquisition of ePac Flexible Packaging.
1 PMCF
PMCF publishes a dedicated Plastics and Packaging industry page and lists packaging and plastics deals on its transactions page.
The named records include CMG Plastics (acquired by Berry Global), LidWorks (sale to New Water Capital), Easy Plastic Containers Corporation (acquired by FirmaPak), Albert Paper Products (management-led buyout supported by Soterra Capital) and RediBagUSA (asset sale to ACR).
| Verified Record | Five named packaging and plastics transactions on pmcf.com |
| Practice Page | Plastics and Packaging |
| Buyers Named | Berry Global, New Water Capital, FirmaPak, Soterra Capital, ACR |
Best For: Converters Wanting Several Named Closes to Check
The record is broad enough to ask for references in your own product line, whether that is containers, closures or paper-based packaging.
Strengths
- Dedicated plastics and packaging practice page
- Five named deals on the firm's own site
- Buyers named in the records include a large strategic and sponsor-backed platforms
Considerations
- The cited pages do not show deal dates or sizes
- Ask which of the named closes were run by the team that would staff your sale
2 Lincoln International
Lincoln International publishes a packaging sector page that names flexibles, labels, rigid, paper and paperboard and corrugated among the segments it covers.
Its FCA transaction page says Lincoln was exclusive investment banking representative for Prairie Capital, Ancor Capital Partners and FCA, a designer and manufacturer of engineered industrial packaging, on the sale to Delos Capital.
| Verified Record | FCA (engineered industrial packaging) sold to Delos Capital |
| Practice Page | Packaging sector |
| Segments Listed | Flexibles, labels, rigid, paper and paperboard, corrugated |
Best For: Sponsor-Backed and Multi-Format Packaging Companies
The sector page covers the widest list of formats of any firm here, which matters if your business spans more than one.
Strengths
- Segment list covers flexibles, labels, rigid and corrugated
- Named record with sponsor-backed sellers
- Practice page on the firm's own site
Considerations
- We opened one named packaging transaction page, so ask for more references
- Ask about minimum deal size before you shortlist
3 Stout
Stout publishes both a packaging page and a plastics page on its own site.
The plastics page calls Stout the most active advisor to middle-market plastics businesses and cites 75 or more investment banking transactions, which is Stout's own claim. Its experience entries are anonymized, including an acquisition of a food service packaging provider, an acquisition of a foodservice labels provider and the sale of a precision plastic healthcare component supplier.
| Verified Record | Three anonymized experience entries on stout.com (names withheld) |
| Practice Pages | Packaging and Plastics |
| Stated Volume | 75 or more plastics transactions (Stout's own figure) |
Best For: Plastics Components and Foodservice Packaging
The entries span foodservice packaging, labels and healthcare components, so ask Stout for referenceable closes in your exact niche.
Strengths
- Separate packaging and plastics practice pages
- Stated plastics transaction volume to ask about
- Entries span food service, labels and healthcare components
Considerations
- Experience entries are anonymized, so buyers and dates cannot be checked
- The 75 or more figure is the firm's own and we did not recount it
4 Mesirow
Mesirow runs a packaging practice page that describes more than 25 years of packaging advisory work.
Its 2016 release names Mesirow exclusive advisor to Tri-Pack Enterprises, doing business as Custom Blow Molding, a rigid plastic packaging maker, on its sale to Pretium Packaging, a Genstar Capital portfolio company. Its 2022 release covers Prairie State Group of Franklin Park, Illinois, a flexible packaging and pressure sensitive label maker, sold to ProAmpac, a Pritzker Private Capital portfolio company.
| Verified Record | Custom Blow Molding to Pretium Packaging (July 2016); Prairie State Group to ProAmpac (March 2022) |
| Practice Page | Packaging |
| Office on Cited Releases | Chicago dateline |
Best For: Flexible Packaging, Labels and Rigid Plastic Packaging
Two named records in different formats show range, and both buyers were sponsor-backed packaging platforms.
Strengths
- Two named, dated records on the firm's own site
- Records span rigid plastic, flexible packaging and labels
- Practice page with a stated 25 year history
Considerations
- The named records are from 2016 and 2022, so ask for more recent closes
- Ask which senior team members ran the named deals
5 Capstone Partners
Capstone's July 27, 2026 packaging market update says TM Capital, a division of Capstone Partners, advised Key Container on its March 2026 investment from Altamont Capital Partners, with terms undisclosed.
Key Container makes specialty and custom corrugated packaging in the Northeast and was founded in 1959. An older Capstone release from January 2013 covers the sale of CCW Products and CCW Distributors to Priority Plastics, Inc. of Portland, Indiana.
| Verified Record | Key Container investment from Altamont (March 2026); CCW Products sale to Priority Plastics (2013) |
| Source Pages | Packaging market update |
| Deal Terms | Undisclosed on the Key Container record |
Best For: Corrugated and Plastic Container Makers
The 2026 record is the most recent dated packaging deal among the firms here that names a corrugated business.
Strengths
- A named 2026 packaging record on the firm's own site
- Covers corrugated and plastic container sales
- Publishes recurring packaging market commentary
Considerations
- The Key Container record describes an investment, not a sale, so it is not a like-for-like exit record
- The plastic container record is from 2013
6 Peakstone Group
Peakstone's announcement from May 2025 names it exclusive M&A advisor to Northwest Packaging Inc. on the sale to Schwarz Partners and its operating business, The Royal Group.
The firm also publishes a Paper, Plastics and Packaging industry page. Its website lists a Chicago, Illinois address.
| Verified Record | Northwest Packaging Inc. to Schwarz Partners (May 2025) |
| Practice Page | Paper, Plastics and Packaging |
| Office on Its Site | Chicago, Illinois |
Best For: Founder-Owned Packaging Companies Selling to a Strategic
A recent record with a strategic buyer shows what a boutique process looks like in this niche.
Strengths
- Recent, dated packaging record from 2025
- Dedicated paper, plastics and packaging page
- Paper, plastics and packaging grouped on one page
Considerations
- One named packaging deal was visible on the pages we opened
- Ask how many packaging mandates the team has closed since 2025
7 Baird
Baird's packaging and containers page says the practice spans labels, films and flexible packaging, rigid, protective, foodservice, and paper and board.
Its Polyair case study describes the sale of Polyair, a protective packaging company, to Intertape Polymer Group for about $146 million, and lists Inhance Technologies (sold to Aurora Capital Partners) and Brook & Whittle Limited, a label solutions company (sold to Snow Phipps Group).
| Verified Record | Polyair to Intertape Polymer Group (about $146 million); Inhance Technologies; Brook & Whittle |
| Practice Page | Packaging and Containers |
| Case Study Date | September 2018 |
Best For: Protective Packaging and Label Businesses
The published case study gives a deal value, which most firms here do not.
Strengths
- Published case study with a stated deal value
- Practice page lists labels, films, rigid, protective and paper
- Three named transactions on the firm's own site
Considerations
- The case study is from 2018, so ask for recent packaging closes
- Ask about minimum deal size before you shortlist
8 Brown Gibbons Lang & Company
Brown Gibbons Lang's November 17, 2020 announcement names it exclusive financial advisor to Riverside Paper Co. on its sale to SupplyOne, which the release calls the largest independent packaging company in the US and a Wellspring Capital Management portfolio company.
The release cites the firm's long history of transactions in the packaging and distribution industries. A 2011 announcement covers the sale of Bourbon S.A., a French maker of automotive plastic interiors, to Plastiques du Val de Loire.
| Verified Record | Riverside Paper Co. to SupplyOne (Nov 2020); Bourbon S.A. to Plastiques du Val de Loire (May 2011) |
| Source Pages | 2020 announcement |
| Practice Page | None found on its site |
Best For: Paper-Based Packaging and Plastics Component Sellers
The 2020 record shows a packaging seller reaching a consolidator, and the 2011 record shows plastics experience outside packaging.
Strengths
- Two named, dated records on the firm's own site
- States a long history in packaging and distribution
- Plastics record outside packaging
Considerations
- We did not find a dedicated packaging practice page
- The plastics record is automotive, not packaging, and is from 2011
9 BDO Capital Advisors
BDO Capital Advisors' Brookdale Plastics record names it exclusive financial advisor to Brookdale Plastics, LLC of Plymouth, Minnesota, a plastic thermoforming company serving medical and retail packaging, on its sale to Placon Corporation.
The page cites the firm's expertise in the rapidly consolidating packaging sector. The release carries a Chicago, Illinois dateline.
| Verified Record | Brookdale Plastics, LLC to Placon Corporation (Nov 2016) |
| Source Page | Brookdale Plastics transaction |
| Office on Cited Release | Chicago dateline |
Best For: Thermoforming and Medical and Retail Packaging
The one named record is a close match for thermoformers selling to a packaging consolidator.
Strengths
- Named record in plastic thermoforming
- States packaging sector expertise on the page
- Exclusive advisor role on the record
Considerations
- One named record, from 2016
- We did not find a dedicated packaging practice page
10 Clayton Capital Partners
Clayton Capital Partners' LMR Plastics release covers the sale of LMR Plastics of Greenville, Tennessee, a maker of precision injection molded thermoplastic parts, to Parkway Products, an injection molder in Florence, Kentucky.
The firm's website shows St. Louis, Missouri. The release page carries no date.
| Verified Record | LMR Plastics to Parkway Products (undated release) |
| Source Page | LMR Plastics release |
| Office on Its Site | St. Louis, Missouri |
Best For: Injection Molders Selling to a Strategic Molder
The record is a direct injection-molding sale, which is the closest match here for a molder.
Strengths
- Named injection molding record on the firm's own site
- Strategic buyer in the same line of business
- Direct injection molding record rather than a general plastics listing
Considerations
- The release is undated
- One named plastics record, and no packaging-specific record
11 William Blair
William Blair lists Packaging as a sector on its Industrial Growth Products page.
The page says William Blair acted as exclusive financial advisor to Butterfly Equity in its acquisition of ePac Flexible Packaging. That is a buy-side record, so it shows buyer relationships rather than a sell-side exit.
| Verified Record | Butterfly Equity's acquisition of ePac Flexible Packaging (buy-side) |
| Practice Page | Industrial Growth Products |
| Record Type | Buy-side advisory |
Best For: Understanding Sponsor Buyers in Flexible Packaging
A buy-side record shows which sponsors the bank already advises, which can inform who sees your business.
Strengths
- Packaging named as a sector on the firm's own site
- Named record involving a flexible packaging platform
- Sponsor relationships visible in the record
Considerations
- The named record is buy-side, not a sell-side exit
- We did not find a sell-side packaging transaction on the page